1 2821 328 YOGA TREATMENT FOR CHRONIC NON-SPECIFIC LOW BACK PAIN. BACKGROUND: NON-SPECIFIC LOW BACK PAIN IS A COMMON, POTENTIALLY DISABLING CONDITION USUALLY TREATED WITH SELF-CARE AND NON-PRESCRIPTION MEDICATION. FOR CHRONIC LOW BACK PAIN, CURRENT GUIDELINES STATE THAT EXERCISE THERAPY MAY BE BENEFICIAL. YOGA IS A MIND-BODY EXERCISE SOMETIMES USED FOR NON-SPECIFIC LOW BACK PAIN. OBJECTIVES: TO ASSESS THE EFFECTS OF YOGA FOR TREATING CHRONIC NON-SPECIFIC LOW BACK PAIN, COMPARED TO NO SPECIFIC TREATMENT, A MINIMAL INTERVENTION (E.G. EDUCATION), OR ANOTHER ACTIVE TREATMENT, WITH A FOCUS ON PAIN, FUNCTION, AND ADVERSE EVENTS. SEARCH METHODS: WE SEARCHED CENTRAL, MEDLINE, EMBASE, FIVE OTHER DATABASES AND FOUR TRIALS REGISTERS TO 11 MARCH 2016 WITHOUT RESTRICTION OF LANGUAGE OR PUBLICATION STATUS. WE SCREENED REFERENCE LISTS AND CONTACTED EXPERTS IN THE FIELD TO IDENTIFY ADDITIONAL STUDIES. SELECTION CRITERIA: WE INCLUDED RANDOMIZED CONTROLLED TRIALS OF YOGA TREATMENT IN PEOPLE WITH CHRONIC NON-SPECIFIC LOW BACK PAIN. WE INCLUDED STUDIES COMPARING YOGA TO ANY OTHER INTERVENTION OR TO NO INTERVENTION. WE ALSO INCLUDED STUDIES COMPARING YOGA AS AN ADJUNCT TO OTHER THERAPIES, VERSUS THOSE OTHER THERAPIES ALONE. DATA COLLECTION AND ANALYSIS: TWO AUTHORS INDEPENDENTLY SCREENED AND SELECTED STUDIES, EXTRACTED OUTCOME DATA, AND ASSESSED RISK OF BIAS. WE CONTACTED STUDY AUTHORS TO OBTAIN MISSING OR UNCLEAR INFORMATION. WE EVALUATED THE OVERALL CERTAINTY OF EVIDENCE USING THE GRADE APPROACH. MAIN RESULTS: WE INCLUDED 12 TRIALS (1080 PARTICIPANTS) CARRIED OUT IN THE USA (SEVEN TRIALS), INDIA (THREE TRIALS), AND THE UK (TWO TRIALS). STUDIES WERE UNFUNDED (ONE TRIAL), FUNDED BY A YOGA INSTITUTION (ONE TRIAL), FUNDED BY NON-PROFIT OR GOVERNMENT SOURCES (SEVEN TRIALS), OR DID NOT REPORT ON FUNDING (THREE TRIALS). MOST TRIALS USED IYENGAR, HATHA, OR VINIYOGA FORMS OF YOGA. THE TRIALS COMPARED YOGA TO NO INTERVENTION OR A NON-EXERCISE INTERVENTION SUCH AS EDUCATION (SEVEN TRIALS), AN EXERCISE INTERVENTION (THREE TRIALS), OR BOTH EXERCISE AND NON-EXERCISE INTERVENTIONS (TWO TRIALS). ALL TRIALS WERE AT HIGH RISK OF PERFORMANCE AND DETECTION BIAS BECAUSE PARTICIPANTS AND PROVIDERS WERE NOT BLINDED TO TREATMENT ASSIGNMENT, AND OUTCOMES WERE SELF-ASSESSED. THEREFORE, WE DOWNGRADED ALL OUTCOMES TO 'MODERATE' CERTAINTY EVIDENCE BECAUSE OF RISK OF BIAS, AND WHEN THERE WAS ADDITIONAL SERIOUS RISK OF BIAS, UNEXPLAINED HETEROGENEITY BETWEEN STUDIES, OR THE ANALYSES WERE IMPRECISE, WE DOWNGRADED THE CERTAINTY OF THE EVIDENCE FURTHER.FOR YOGA COMPARED TO NON-EXERCISE CONTROLS (9 TRIALS; 810 PARTICIPANTS), THERE WAS LOW-CERTAINTY EVIDENCE THAT YOGA PRODUCED SMALL TO MODERATE IMPROVEMENTS IN BACK-RELATED FUNCTION AT THREE TO FOUR MONTHS (STANDARDIZED MEAN DIFFERENCE (SMD) -0.40, 95% CONFIDENCE INTERVAL (CI) -0.66 TO -0.14; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MEAN DIFFERENCE (MD) -2.18, 95% -3.60 TO -0.76), MODERATE-CERTAINTY EVIDENCE FOR SMALL TO MODERATE IMPROVEMENTS AT SIX MONTHS (SMD -0.44, 95% CI -0.66 TO -0.22; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MD -2.15, 95% -3.23 TO -1.08), AND LOW-CERTAINTY EVIDENCE FOR SMALL IMPROVEMENTS AT 12 MONTHS (SMD -0.26, 95% CI -0.46 TO -0.05; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MD -1.36, 95% -2.41 TO -0.26). ON A 0-100 SCALE THERE WAS VERY LOW- TO MODERATE-CERTAINTY EVIDENCE THAT YOGA WAS SLIGHTLY BETTER FOR PAIN AT THREE TO FOUR MONTHS (MD -4.55, 95% CI -7.04 TO -2.06), SIX MONTHS (MD -7.81, 95% CI -13.37 TO -2.25), AND 12 MONTHS (MD -5.40, 95% CI -14.50 TO -3.70), HOWEVER WE PRE-DEFINED CLINICALLY SIGNIFICANT CHANGES IN PAIN AS 15 POINTS OR GREATER AND THIS THRESHOLD WAS NOT MET. BASED ON INFORMATION FROM SIX TRIALS, THERE WAS MODERATE-CERTAINTY EVIDENCE THAT THE RISK OF ADVERSE EVENTS, PRIMARILY INCREASED BACK PAIN, WAS HIGHER IN YOGA THAN IN NON-EXERCISE CONTROLS (RISK DIFFERENCE (RD) 5%, 95% CI 2% TO 8%).FOR YOGA COMPARED TO NON-YOGA EXERCISE CONTROLS (4 TRIALS; 394 PARTICIPANTS), THERE WAS VERY-LOW-CERTAINTY EVIDENCE FOR LITTLE OR NO DIFFERENCE IN BACK-RELATED FUNCTION AT THREE MONTHS (SMD -0.22, 95% CI -0.65 TO 0.20; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MD -0.99, 95% -2.87 TO 0.90) AND SIX MONTHS (SMD -0.20, 95% CI -0.59 TO 0.19; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MD -0.90, 95% -2.61 TO 0.81), AND NO INFORMATION ON BACK-RELATED FUNCTION AFTER SIX MONTHS. THERE WAS VERY LOW-CERTAINTY EVIDENCE FOR LOWER PAIN ON A 0-100 SCALE AT SEVEN MONTHS (MD -20.40, 95% CI -25.48 TO -15.32), AND NO INFORMATION ON PAIN AT THREE MONTHS OR AFTER SEVEN MONTHS. BASED ON INFORMATION FROM THREE TRIALS, THERE WAS LOW-CERTAINTY EVIDENCE FOR NO DIFFERENCE IN THE RISK OF ADVERSE EVENTS BETWEEN YOGA AND NON-YOGA EXERCISE CONTROLS (RD 1%, 95% CI -4% TO 6%).FOR YOGA ADDED TO EXERCISE COMPARED TO EXERCISE ALONE (1 TRIAL; 24 PARTICIPANTS), THERE WAS VERY-LOW-CERTAINTY EVIDENCE FOR LITTLE OR NO DIFFERENCE AT 10 WEEKS IN BACK-RELATED FUNCTION (SMD -0.60, 95% CI -1.42 TO 0.22; CORRESPONDING TO A CHANGE IN THE OSWESTRY DISABILITY INDEX OF MD -17.05, 95% -22.96 TO 11.14) OR PAIN ON A 0-100 SCALE (MD -3.20, 95% CI -13.76 TO 7.36). THERE WAS NO INFORMATION ON OUTCOMES AT OTHER TIME POINTS. THERE WAS NO INFORMATION ON ADVERSE EVENTS.STUDIES PROVIDED LIMITED EVIDENCE ON RISK OF CLINICAL IMPROVEMENT, MEASURES OF QUALITY OF LIFE, AND DEPRESSION. THERE WAS NO EVIDENCE ON WORK-RELATED DISABILITY. AUTHORS' CONCLUSIONS: THERE IS LOW- TO MODERATE-CERTAINTY EVIDENCE THAT YOGA COMPARED TO NON-EXERCISE CONTROLS RESULTS IN SMALL TO MODERATE IMPROVEMENTS IN BACK-RELATED FUNCTION AT THREE AND SIX MONTHS. YOGA MAY ALSO BE SLIGHTLY MORE EFFECTIVE FOR PAIN AT THREE AND SIX MONTHS, HOWEVER THE EFFECT SIZE DID NOT MEET PREDEFINED LEVELS OF MINIMUM CLINICAL IMPORTANCE. IT IS UNCERTAIN WHETHER THERE IS ANY DIFFERENCE BETWEEN YOGA AND OTHER EXERCISE FOR BACK-RELATED FUNCTION OR PAIN, OR WHETHER YOGA ADDED TO EXERCISE IS MORE EFFECTIVE THAN EXERCISE ALONE. YOGA IS ASSOCIATED WITH MORE ADVERSE EVENTS THAN NON-EXERCISE CONTROLS, BUT MAY HAVE THE SAME RISK OF ADVERSE EVENTS AS OTHER BACK-FOCUSED EXERCISE. YOGA IS NOT ASSOCIATED WITH SERIOUS ADVERSE EVENTS. THERE IS A NEED FOR ADDITIONAL HIGH-QUALITY RESEARCH TO IMPROVE CONFIDENCE IN ESTIMATES OF EFFECT, TO EVALUATE LONG-TERM OUTCOMES, AND TO PROVIDE ADDITIONAL INFORMATION ON COMPARISONS BETWEEN YOGA AND OTHER EXERCISE FOR CHRONIC NON-SPECIFIC LOW BACK PAIN.	2017	

2 2820 295 YOGA TREATMENT FOR CHRONIC NON-SPECIFIC LOW BACK PAIN (2017). WIELAND LS, SKOETZ N, PILKINGTON K, VEMPATI R, DADAMO CR, BERMAN BM. YOGA TREATMENT FOR CHRONIC NON-SPECIFIC LOW BACK PAIN.COCHRANE DATABASE SYST REV2017, ISSUE 1. ART. NO.: CD010671. DOI: 10.1002/14651858.CD010671.PUB2. BACKGROUND: NON-SPECIFIC LOW BACK PAIN IS A COMMON, POTENTIALLY DISABLING CONDITION USUALLY TREATED WITH SELF-CARE AND NON-PRESCRIPTION MEDICATION. FOR CHRONIC LOW BACK PAIN, CURRENT GUIDELINES STATE THAT EXERCISE THERAPY MAY BE BENEFICIAL. YOGA IS A MIND-BODY EXERCISE SOMETIMES USED FOR NON-SPECIFIC LOW BACK PAIN. OBJECTIVES: TO ASSESS THE EFFECTS OF YOGA FOR TREATING CHRONIC NON-SPECIFIC LOW BACK PAIN, COMPARED TO NO SPECIFIC TREATMENT, A MINIMAL INTERVENTION (E.G., EDUCATION), OR ANOTHER ACTIVE TREATMENT, WITH A FOCUS ON PAIN, FUNCTION, AND ADVERSE EVENTS. SEARCH METHODS: WE SEARCHED CENTRAL, MEDLINE, EMBASE, FIVE OTHER DATABASES, AND FOUR TRIALS REGISTERS TO 11 MARCH 2016 WITHOUT RESTRICTION OF LANGUAGE OR PUBLICATION STATUS. WE SCREENED REFERENCE LISTS AND CONTACTED EXPERTS IN THE FIELD TO IDENTIFY ADDITIONAL STUDIES. SELECTION CRITERIA: WE INCLUDED RANDOMIZED CONTROLLED TRIALS OF YOGA TREATMENT IN PEOPLE WITH CHRONIC NON-SPECIFIC LOW BACK PAIN. WE INCLUDED STUDIES COMPARING YOGA TO ANY OTHER INTERVENTION OR TO NO INTERVENTION. WE ALSO INCLUDED STUDIES COMPARING YOGA AS AN ADJUNCT TO OTHER THERAPIES, VERSUS THOSE OTHER THERAPIES ALONE. DATA COLLECTION AND ANALYSIS: TWO AUTHORS INDEPENDENTLY SCREENED AND SELECTED STUDIES, EXTRACTED OUTCOME DATA, AND ASSESSED RISK OF BIAS. WE CONTACTED STUDY AUTHORS TO OBTAIN MISSING OR UNCLEAR INFORMATION. WE EVALUATED THE OVERALL CERTAINTY OF EVIDENCE USING THE GRADE APPROACH. MAIN RESULTS: WE INCLUDED 12 TRIALS (1080 PARTICIPANTS) CARRIED OUT IN THE USA (SEVEN TRIALS), INDIA (THREE TRIALS), AND THE UK (TWO TRIALS). STUDIES WERE UNFUNDED (ONE TRIAL), FUNDED BY A YOGA INSTITUTION (ONE TRIAL), FUNDED BY NON-PROFIT OR GOVERNMENT SOURCES (SEVEN TRIALS), OR DID NOT REPORT ON FUNDING (THREE TRIALS). MOST TRIALS USED IYENGAR, HATHA, OR VINIYOGA FORMS OF YOGA. THE TRIALS COMPARED YOGA TO NO INTERVENTION OR A NON-EXERCISE INTERVENTION SUCH AS EDUCATION (SEVEN TRIALS), AN EXERCISE INTERVENTION (THREE TRIALS), OR BOTH EXERCISE AND NON-EXERCISE INTERVENTIONS (TWO TRIALS). ALL TRIALS WERE AT HIGH RISK OF PERFORMANCE AND DETECTION BIAS BECAUSE PARTICIPANTS AND PROVIDERS WERE NOT BLINDED TO TREATMENT ASSIGNMENT, AND OUTCOMES WERE SELF-ASSESSED. THEREFORE, WE DOWNGRADED ALL OUTCOMES TO "MODERATE" CERTAINTY EVIDENCE BECAUSE OF RISK OF BIAS, AND WHEN THERE WAS ADDITIONAL SERIOUS RISK OF BIAS, UNEXPLAINED HETEROGENEITY BETWEEN STUDIES, OR THE ANALYSES WERE IMPRECISE, WE DOWNGRADED THE CERTAINTY OF THE EVIDENCE FURTHER. FOR YOGA COMPARED TO NON-EXERCISE CONTROLS (9 TRIALS; 810 PARTICIPANTS), THERE WAS LOW-CERTAINTY EVIDENCE THAT YOGA PRODUCED SMALL TO MODERATE IMPROVEMENTS IN BACK-RELATED FUNCTION AT THREE TO FOUR MONTHS [STANDARDIZED MEAN DIFFERENCE (SMD) = -0.40, 95% CI: -0.66 TO -0.14; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MEAN DIFFERENCE (MD) = -2.18, 95% CI: -3.60 TO -0.76], MODERATE-CERTAINTY EVIDENCE FOR SMALL TO MODERATE IMPROVEMENTS AT SIX MONTHS (SMD = -0.44, 95% CI: -0.66 TO -0.22; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MD = -2.15, 95% CI: -3.23 TO -1.08), AND LOW-CERTAINTY EVIDENCE FOR SMALL IMPROVEMENTS AT 12 MONTHS (SMD = -0.26, 95% CI: -0.46 TO -0.05; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MD = -1.36, 95% CI: -2.41 TO -0.26). ON A 0-100 SCALE THERE WAS VERY LOW- TO MODERATE-CERTAINTY EVIDENCE THAT YOGA WAS SLIGHTLY BETTER FOR PAIN AT THREE TO FOUR MONTHS (MD = -4.55, 95% CI: -7.04 TO -2.06), SIX MONTHS (MD = -7.81, 95% CI: -13.37 TO -2.25), AND 12 MONTHS (MD = -5.40, 95% CI: -14.50 TO -3.70); HOWEVER, WE PRE-DEFINED CLINICALLY SIGNIFICANT CHANGES IN PAIN AS 15 POINTS OR GREATER AND THIS THRESHOLD WAS NOT MET. BASED ON INFORMATION FROM SIX TRIALS, THERE WAS MODERATE-CERTAINTY EVIDENCE THAT THE RISK OF ADVERSE EVENTS, PRIMARILY INCREASED BACK PAIN, WAS HIGHER IN YOGA THAN IN NON-EXERCISE CONTROLS [RISK DIFFERENCE (RD) = 5%, 95% CI: 2-8%]. FOR YOGA COMPARED TO NON-YOGA EXERCISE CONTROLS (4 TRIALS; 394 PARTICIPANTS), THERE WAS VERY-LOW-CERTAINTY EVIDENCE FOR LITTLE OR NO DIFFERENCE IN BACK-RELATED FUNCTION AT THREE MONTHS (SMD = -0.22, 95% CI: -0.65 TO 0.20; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MD = -0.99, 95% CI: -2.87 TO 0.90) AND SIX MONTHS (SMD = -0.20, 95% CI: -0.59 TO 0.19; CORRESPONDING TO A CHANGE IN THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE OF MD = -0.90, 95% CI: -2.61 TO 0.81), AND NO INFORMATION ON BACK-RELATED FUNCTION AFTER SIX MONTHS. THERE WAS VERY LOW-CERTAINTY EVIDENCE FOR LOWER PAIN ON A 0-100 SCALE AT SEVEN MONTHS (MD = -20.40, 95% CI: -25.48 TO -15.32), AND NO INFORMATION ON PAIN AT THREE MONTHS OR AFTER SEVEN MONTHS. BASED ON INFORMATION FROM THREE TRIALS, THERE WAS LOW-CERTAINTY EVIDENCE FOR NO DIFFERENCE IN THE RISK OF ADVERSE EVENTS BETWEEN YOGA AND NON-YOGA EXERCISE CONTROLS (RD = 1%, 95% CI: -4% TO 6%). FOR YOGA ADDED TO EXERCISE COMPARED TO EXERCISE ALONE (1 TRIAL; 24 PARTICIPANTS), THERE WAS VERY-LOW-CERTAINTY EVIDENCE FOR LITTLE OR NO DIFFERENCE AT 10 WEEKS IN BACK-RELATED FUNCTION (SMD = -0.60, 95% CI: -1.42 TO 0.22; CORRESPONDING TO A CHANGE IN THE OSWESTRY DISABILITY INDEX OF MD = -17.05, 95% CI: -22.96 TO 11.14) OR PAIN ON A 0-100 SCALE (MD = -3.20, 95% CI: -13.76 TO 7.36). THERE WAS NO INFORMATION ON OUTCOMES AT OTHER TIME POINTS. THERE WAS NO INFORMATION ON ADVERSE EVENTS. STUDIES PROVIDED LIMITED EVIDENCE ON RISK OF CLINICAL IMPROVEMENT, MEASURES OF QUALITY OF LIFE, AND DEPRESSION. THERE WAS NO EVIDENCE ON WORK-RELATED DISABILITY.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
3 1305  40 HATHA YOGA PRACTICES: ENERGY EXPENDITURE, RESPIRATORY CHANGES AND INTENSITY OF EXERCISE. THE AIM OF THIS STUDY WAS TO CRITICALLY OBSERVE THE ENERGY EXPENDITURE, EXERCISE INTENSITY AND RESPIRATORY CHANGES DURING A FULL YOGA PRACTICE SESSION. OXYGEN CONSUMPTION ([FORMULA: SEE TEXT]), CARBON DIOXIDE OUTPUT ([FORMULA: SEE TEXT]), PULMONARY VENTILATION ([FORMULA: SEE TEXT]E), RESPIRATORY RATE (FR) AND TIDAL VOLUME (VT), WERE MEASURED IN 16 PHYSICAL POSTURE (ASANAS), FIVE YOGA BREATHING MANEUVERS (BM) AND TWO TYPES OF MEDITATION. TWENTY MALE (AGE 27.3 +/- 3.5 YEARS, HEIGHT 166.6 +/- 5.4 CM AND BODY WEIGHT 58.8 +/- 9.6 KG) YOGA INSTRUCTORS WERE STUDIED. THEIR MAXIMAL OXYGEN CONSUMPTION ([FORMULA: SEE TEXT]) WAS RECORDED. THE EXERCISE INTENSITY IN ASANAS WAS EXPRESSED IN PERCENTAGE [FORMULA: SEE TEXT] . IN ASANAS, EXERCISE INTENSITY VARIED FROM 9.9 TO 26.5% OF [FORMULA: SEE TEXT] . HIGHEST ENERGY COST WAS 3.02 KCAL MIN(-1). IN BM HIGHEST [FORMULA: SEE TEXT]E WAS 53.7 +/- 15.5 L MIN(-1). VT WAS 0.97 +/- 0.59, 1.41 +/- 1.27 AND 1.28 +/- L/BREATH WITH CORRESPONDING FR OF 14.0 +/- 5.3, 10.0 +/- 6.35, 10.0 +/- 5.8 BREATHS/MIN. AVERAGE ENERGY EXPENDITURE IN ASANAS, BM AND MEDITATION WERE 2.29, 1.91 AND 1.37 KCAL MIN(-1), RESPECTIVELY. METABOLIC RATE WAS GENERALLY IN THE RANGE OF 1-2 METABOLIC EQUIVALENTS (MET) EXCEPT IN THREE ASANAS WHERE IT WAS >2 MET. [FORMULA: SEE TEXT] WAS 0.27 +/- 0.05 AND 0.24 +/- 0.04 L MIN(-1) IN MEDITATION AND SHAVASANA, RESPECTIVELY. ALTHOUGH YOGIC PRACTICES ARE LOW INTENSITY EXERCISES WITHIN LACTATE THRESHOLD, PHYSICAL PERFORMANCE IMPROVEMENT IS POSSIBLE OWING TO BOTH BETTER ECONOMY OF BREATHING BY BM AND ALSO BY IMPROVEMENT IN CARDIOVASCULAR RESERVE. OTHER FACTORS SUCH AS PSYCHO-PHYSIOLOGICAL AND BETTER RELAXATION MAY CONTRIBUTE TO IT.	2011	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
4 1451  39 INFLUENCE OF INTENSIVE YOGA TRAINING ON PHYSIOLOGICAL CHANGES IN 6 ADULT WOMEN: A CASE REPORT. THE SHORT-TERM EFFECTS OF 4 WEEKS OF INTENSIVE YOGA PRACTICE ON PHYSIOLOGICAL RESPONSES IN SIX HEALTHY ADULT FEMALE VOLUNTEERS WERE MEASURED USING THE MAXIMAL EXERCISE TREADMILL TEST. YOGA PRACTICE INVOLVED DAILY MORNING AND EVENING SESSIONS OF 90 MINUTES EACH. PRE- AND POST-YOGA EXERCISE PERFORMANCE WAS COMPARED. MAXIMAL WORK OUTPUT (WMAX) FOR THE GROUP INCREASED BY 21%, WITH A SIGNIFICANTLY REDUCED LEVEL OF OXYGEN CONSUMPTION PER UNIT WORK BUT WITHOUT A CONCOMITANT SIGNIFICANT CHANGE IN HEART RATE. AFTER INTENSIVE YOGA TRAINING, AT 154 WMIN(-1) (CORRESPONDING TO WMAX OF THE PRE-YOGA MAXIMAL EXERCISE TEST) PARTICIPANTS COULD EXERCISE MORE COMFORTABLY, WITH A SIGNIFICANTLY LOWER HEART RATE (P < 0.05), REDUCED MINUTE VENTILATION (P < 0.05), REDUCED OXYGEN CONSUMPTION PER UNIT WORK (P < 0.05), AND A SIGNIFICANTLY LOWER RESPIRATORY QUOTIENT (P < 0.05). THE IMPLICATIONS FOR THE EFFECT OF INTENSIVE YOGA ON CARDIORESPIRATORY EFFICIENCY ARE DISCUSSED, WITH THE SUGGESTION THAT YOGA HAS SOME TRANSPARENTLY DIFFERENT QUANTIFIABLE PHYSIOLOGICAL EFFECTS TO OTHER EXERCISES.	1997	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
5 1467  45 INNER CORRESPONDENCE AND PEACEFULNESS WITH PRACTICES AMONG PARTICIPANTS IN EURYTHMY THERAPY AND YOGA: A VALIDATION STUDY. SEVERAL MIND BODY MEDICINE INTERVENTIONS REQUIRE AN ACTIVE PARTICIPATION OF THE PRACTITIONERS. WE INTENDED TO DEVELOP A QUESTIONNAIRE TO OPERATIONALIZE AND MEASURE THE "INNER CORRESPONDENCE" OF INDIVIDUALS PRACTICING YOGA OR EURYTHMY THERAPY. IN AN ANONYMOUS CROSS-SECTIONAL STUDY WE ENROLLED 501 INDIVIDUALS (61% YOGA). EXPLORATORY FACTOR ANALYSIS (STUDY 1) OF THE 12-ITEM INSTRUMENT (CRONBACH'S ALPHA = .84) POINTED TO A 3-FACTOR SOLUTION, WITH ONE MAJOR SCALE AND GOOD INTERNAL CONSISTENCY (ALPHA = .83) AND TWO MINOR SCALES WITH WEAK INTERNAL CONSISTENCY. TO IMPROVE THE QUALITY OF THE MAIN SCALE, WE ADDED 8 NEW ITEMS WHICH WERE TESTED IN A SAMPLE OF 135 INDIVIDUALS (STUDY 2: 71% YOGA). FACTOR ANALYSIS CONFIRMED A 12-ITEM SINGLE FACTOR (ALPHA = .95), THAT IS, INNER CORRESPONDENCE/PEACEFUL HARMONY WITH PRACTICES (ICPH). THE SCALE CORRELATED STRONGLY WITH MINDFULNESS (FMI; R > .50), MODERATELY WITH LIFE AND PATIENT SATISFACTION (BMLSS; R BETWEEN .32 AND .43), AND WEAKLY NEGATIVE WITH SYMPTOM SCORE (VAS; R = -.23). IN CONCLUSION, THE SCALE ICPH WAS CONFIRMED AS A RELEVANT TOOL TO MEASURE THE INNER CORRESPONDENCE AND FEELINGS OF PEACEFULNESS WITH PRACTICES. IT CAN BE USED IN CLINICAL STUDIES TO ASSESS THE EFFICACY OF MIND-BODY PRACTICES INVOLVING PHYSICAL MOVEMENTS.	2011	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
6 1695  39 P300 FOLLOWING FOUR VOLUNTARILY REGULATED YOGA BREATHING PRACTICES AND BREATH AWARENESS. ATTENTION WAS INFLUENCED BY YOGA BREATHING IN PREVIOUSLY PUBLISHED RESEARCH. EACH YOGA BREATHING PRACTICE UNIQUELY MODIFIES SPECIFIC BREATH CHARACTERISTICS. DIFFERENCES IN THE STUDY DESIGNS, ASSESSMENT METHODS AND INTERVENTIONS RESULTED IN DIFFICULTY IN COMPARING EFFECTS BETWEEN YOGA BREATHING PRACTICES. THIS STUDY AIMED (I) TO COMPARE FOUR YOGA BREATHING PRACTICES ON ATTENTION USING AN AUDITORY ODDBALL TASK AND (II) TO DETERMINE CARDIAC AUTONOMIC ACTIVITY ASSOCIATED WITH ATTENTION USING HEART RATE VARIABILITY. P300 EVENT RELATED POTENTIAL WAS RECORDED SIMULTANEOUSLY WITH HEART RATE VARIABILITY BEFORE AND AFTER 18-MINUTE PERIODS EACH OF (I) HIGH FREQUENCY YOGA BREATHING (WITH INCREASED BREATH FREQUENCY), (II) BELLOWS YOGA BREATHING (WITH INCREASED DEPTH OF RESPIRATION), (III) ALTERNATE NOSTRIL YOGA BREATHING (WITH ALTERNATE NOSTRIL PATENCY), (IV) BUMBLEBEE YOGA BREATHING (WITH PROLONGED EXHALE), (V) BREATH AWARENESS (WITH ATTENTION TO THE BREATH) AND (VI) QUIET SEATED REST AS CONTROL IN 38 YOGA EXPERIENCED MALES (AVERAGE AGE +/- SD; 24.08 +/- 4.01 YEARS). THE SIX SESSIONS WERE ON SEPARATE, RANDOMLY ALLOCATED DAYS. THE P300 PEAK AMPLITUDE RECORDED AT PZ WAS SIGNIFICANTLY INCREASED AFTER FOUR YOGA BREATHING PRACTICES (BONFERRONI ADJUSTED POST-HOC TESTS, REPEATED MEASURES ANOVA). NO SIGNIFICANT CHANGES WERE NOTED IN HEART RATE VARIABILITY FOLLOWING YOGA BREATHING OR CONTROL SESSIONS. THESE FINDINGS SUGGEST THAT THE FOUR YOGA BREATHING PRACTICES INCREASE THE ATTENTIONAL NEURAL RESOURCES ENGAGED FOR THIS AUDITORY ODDBALL TASK, IRRESPECTIVE OF THE CHARACTERISTIC OF BREATH UNIQUELY REGULATED IN THE FOUR YOGA BREATHING PRACTICES.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
7 2738  59 YOGA POSTURE RECOGNITION AND QUANTITATIVE EVALUATION WITH WEARABLE SENSORS BASED ON TWO-STAGE CLASSIFIER AND PRIOR BAYESIAN NETWORK. CURRENTLY, WITH THE SATISFACTION OF PEOPLE'S MATERIAL LIFE, SPORTS, LIKE YOGA AND TAI CHI, HAVE BECOME ESSENTIAL ACTIVITIES IN PEOPLE'S DAILY LIFE. FOR MOST YOGA AMATEURS, THEY COULD ONLY LEARN YOGA BY SELF-STUDY, LIKE MECHANICALLY IMITATING FROM YOGA VIDEO. THEY COULD NOT KNOW WHETHER THEY PERFORMED STANDARDLY WITHOUT FEEDBACK AND GUIDANCE. IN THIS PAPER, WE PROPOSED A FULL-BODY POSTURE MODELING AND QUANTITATIVE EVALUATION METHOD TO RECOGNIZE AND EVALUATE YOGA POSTURES TO PROVIDE GUIDANCE TO THE LEARNER. BACK PROPAGATION ARTIFICIAL NEURAL NETWORK (BP-ANN) WAS ADOPTED AS THE FIRST CLASSIFIER TO DIVIDE YOGA POSTURES INTO DIFFERENT CATEGORIES, AND FUZZY C-MEANS (FCM) WAS UTILIZED AS THE SECOND CLASSIFIER TO CLASSIFY THE POSTURES IN A CATEGORY. THE POSTURE DATA ON EACH BODY PART WAS REGARDED AS A MULTIDIMENSIONAL GAUSSIAN VARIABLE TO BUILD A BAYESIAN NETWORK. THE CONDITIONAL PROBABILITY OF THE GAUSSIAN VARIABLE CORRESPONDING TO EACH BODY PART RELATIVE TO THE GAUSSIAN VARIABLE CORRESPONDING TO THE CONNECTED BODY PART WAS USED AS CRITERION TO QUANTITATIVELY EVALUATE THE STANDARD DEGREE OF BODY PARTS. THE ANGULAR DIFFERENCES BETWEEN NONSTANDARD PARTS AND THE STANDARD MODEL COULD BE CALCULATED TO PROVIDE GUIDANCE WITH AN EASILY-ACCEPTED LANGUAGE, SUCH AS "LIFT UP YOUR LEFT ARM", "STRAIGHTEN YOUR RIGHT FOREARM". TO EVALUATE OUR METHOD, A WEARABLE DEVICE WITH 11 INERTIAL MEASUREMENT UNITS (IMUS) FIXED ONTO THE BODY WAS DESIGNED TO MEASURE YOGA POSTURE DATA WITH QUATERNION FORMAT, AND THE POSTURE DATABASE WITH A TOTAL OF 211,643 DATA FRAMES AND 1831 POSTURE INSTANCES WAS COLLECTED FROM 11 SUBJECTS. BOTH THE POSTURE RECOGNITION TEST AND EVALUATION TEST WERE CONDUCTED. IN THE RECOGNITION TEST, 30% DATA WAS RANDOMLY PICKED FROM THE DATABASE TO TRAIN BP-ANN AND FCM CLASSIFIERS, AND THE RECOGNITION ACCURACY OF THE REMAINING 70% DATA WAS 95.39%, WHICH IS HIGHLY COMPETITIVE WITH PREVIOUS POSTURE RECOGNITION APPROACHES. IN THE EVALUATION TEST, 30% DATA WERE PICKED RANDOMLY FROM SUBJECT THREE, SUBJECT FOUR, AND SUBJECT SIX, TO TRAIN THE BAYESIAN NETWORK. THE PROBABILITIES OF NONSTANDARD PARTS WERE ALMOST ALL SMALLER THAN 0.3, WHILE THE PROBABILITIES OF STANDARD PARTS WERE ALMOST ALL GREATER THAN 0.5, AND THUS THE NONSTANDARD PARTS OF BODY POSTURE COULD BE EFFECTIVELY SEPARATED AND PICKED FOR GUIDANCE. WE ALSO TESTED SEPARATELY THE TRAINERS' YOGA POSTURE PERFORMANCE IN THE CONDITION OF WITHOUT AND WITH GUIDANCE PROVIDED BY OUR PROPOSED METHOD. THE RESULTS SHOWED THAT WITH GUIDANCE, THE JOINT ANGLE ERRORS SIGNIFICANTLY DECREASED.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
8  649  59 DYNAMIC EVALUATION OF THE CONTRACTILE FUNCTION OF LUMBODORSAL MUSCLES DURING LOCUST POSE IN YOGA BY REAL-TIME ULTRASOUND. BACKGROUND AND PURPOSE: CHRONIC LOW BACK PAIN (CLBP), WHICH HAS A CLOSE RELATIONSHIP WITH LUMBAR MUSCLE DEGENERATION, CAN BE EFFECTIVELY TREATED BY EXERCISE THERAPY, AND YOGA HAS BEEN WIDELY ACCEPTED BY CLINICIANS AND PATIENTS WITH CLBP. THE PURPOSE OF THIS STUDY WAS TO OBSERVE THE CHANGES IN THE THICKNESS OF LUMBODORSAL MUSCLES THAT OCCUR DURING LOCUST POSE IN YOGA AND HOW THESE CHANGES OCCUR. FROM THE CHANGES IN MUSCLE THICKNESS THAT OCCUR IN THE LOCUST POSE, THE CONTRACTILE FUNCTION OF LUMBODORSAL MUSCLES CAN BE EVALUATED. METHODS: FIFTY-TWO HEALTHY VOLUNTEERS (FROM MAY 2019 TO AUGUST 2019, AGE FROM 28 TO 68 YEARS, 23 MALES AND 29 FEMALES (AGE: 40 +/- 8 YEARS; WEIGHT: 68.3 +/- 5.2 KG; HEIGHT: 170.2 +/- 13.1 CM) WERE RECRUITED, AND LUMBODORSAL MUSCLE, INCLUDING THE MULTIFIDUS, LONGISSIMUS, ILIOCOSTALIS, AND QUADRATUS LUMBORUM, ULTRASONIC EXAMINATIONS WERE CARRIED OUT IN THE RELAXED AND CONTRACTED STATES. THE CHANGES IN THE THICKNESS OF THE LUMBODORSAL MUSCLES IN THE RELAXED AND CONTRACTED STATES WERE DYNAMICALLY OBSERVED BY REAL-TIME ULTRASOUND WHEN SUBJECTS WERE PERFORMING THE LOCUST YOGA POSE. THEN, THE THICKNESSES OF THE MUSCLES DURING THE TWO STATES WERE MEASURED TO CALCULATE THE RATIO OF CONTRACTION OF EACH MUSCLE AND DETERMINE THE STATISTICAL SIGNIFICANCE OF THE CHANGE IN THICKNESS OF EACH MUSCLE. RESULTS: THE MEAN THICKNESS OF THE LEFT MULTIFIDUS IN THE RELAXED STATE WAS 1.32 +/- 0.27 CM (95 % CI: 1.24 ~ 1.39), THAT IN THE CONTRACTED STATE WAS 1.60 +/- 0.30 CM (95 % CI: 1.52 ~ 1.69) (OBVIOUSLY DIFFERENT BETWEEN THE RELAXED AND CONTRACTED STATES, P < 0.001), AND THOSE IN THE CORRESPONDING RIGHT SIDE WERE 1.37 +/- 0.31 CM (95 % CI: 1.29 ~ 2.46) AND 1.68 +/- 0.38 CM (95 % CI: 1.58 ~ 1.79) (P < 0.001), RESPECTIVELY. THE MEAN THICKNESS OF THE LEFT QUADRATUS LUMBORUM IN THE RELAXED STATE WAS 1.38 +/- 0.32 CM (95 % CI: 1.29 ~ 1.47), THAT IN THE CONTRACTED STATE WAS 1.62 +/- 0.40 CM (95 % CI: 1.50 ~ 1.73) (P = 0.001), AND THOSE IN THE CORRESPONDING RIGHT SIDE WERE 1.30 +/- 0.32 CM (95 % CI: 1.21 ~ 1.39) AND 1.55 +/- 0.41 CM (95 % CI: 1.44 ~ 1.67) (P = 0.001), RESPECTIVELY. THE MEAN THICKNESS OF THE LEFT LONGISSIMUS IN THE RELAXED WAS 2.33 +/- 0.51 CM (95 % CI: 2.19 ~ 2.47), THAT IN THE CONTRACTED STATE WAS 3.20 +/- 0.61 CM (95 % CI: 3.03 ~ 3.37) (P < 0.001), AND THOSE IN THE CORRESPONDING RIGHT SIDE WERE 2.34 +/- 0.49 CM (95 % CI 2.20 ~ 2.48) AND 3.26 +/- 0.68 CM (95 % CI 3.07 ~ 3.45) (P < 0.001), RESPECTIVELY. THE MEAN THICKNESS OF THE LEFT ILIOCOSTALIS IN THE RELAXED STATE WAS 1.88 +/- 0.41 CM (95 % CI: 1.76 ~ 1.99), THAT IN THE CONTRACTED STATE WAS 2.34 +/- 0.49 CM (95 % CI: 2.00 ~ 2.47) (P < 0.001), AND THOSE IN THE CORRESPONDING RIGHT SIDE WERE 1.98 +/- 0.40 CM (95 % CI: 1.87 ~ 2.09) AND 2.44 +/- 0.56 CM (95 % CI: 2.29 ~ 2.60) (P < 0.001), RESPECTIVELY. THE MEAN CONTRACTED STATE/RESTING STATE (C/R) OF THE LONGISSIMUS WAS 1.39 +/- 0.14 ON THE LEFT AND 1.40 +/- 0.16 ON THE RIGHT. THE MULTIFIDUS AND ILIOCOSTALIS HAD THE SECOND HIGHEST C/R. THE MEAN C/R OF THE MULTIFIDUS WAS 1.23 +/- 0.12 ON THE LEFT AND 1.24 +/- 0.15 ON THE RIGHT, AND THE MEAN C/R OF THE ILIOCOSTALIS WAS 1.25 +/- 0.12 ON THE LEFT AND 1.24 +/- 0.14 ON THE RIGHT. THE QUADRATUS LUMBORUM HAD THE LOWEST C/R, AND THE MEAN C/R OF THE QUADRATUS LUMBORUM WAS 1.17 +/- 0.10 ON THE LEFT AND 1.19 +/- 0.11 ON THE RIGHT. CONCLUSIONS: ULTRASOUND CAN BE USED TO DYNAMICALLY ASSESS THE CONTRACTILE FUNCTION OF THE LUMBAR MUSCLE IN THE LOCUST POSE OF YOGA, THE C/R RATIO CAN BE USED TO INDICATE THE ABILITY OF A MUSCLE TO CONTRACT, AND DYNAMIC ULTRASOUND CAN GUIDE LUMBAR EXERCISE AND FEEDBACK THE EXERCISE RESULTS. THE ESTABLISHMENT OF THIS MODEL ALLOWED DATA REGARDING THE CONTRACTION STATE OF THE LUMBAR MUSCLE TO BE OBTAINED IN A NORMAL POPULATION, AND BASED ON THIS, FUTURE STUDIES CAN FURTHER EXPLORE AND EVALUATE THE CONTRACTION STATE OF THE LUMBAR MUSCLE AFTER YOGA EXERCISE IN CLBP PATIENTS, THE EFFECT EXERCISE ON LUMBAR INSTABILITY AND ON A PATIENT POPULATION AFTER LUMBAR OPERATION.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
9  438  37 CARDIOVASCULAR AND RESPIRATORY EFFECT OF YOGIC SLOW BREATHING IN THE YOGA BEGINNER: WHAT IS THE BEST APPROACH? SLOW BREATHING INCREASES CARDIAC-VAGAL BAROREFLEX SENSITIVITY (BRS), IMPROVES OXYGEN SATURATION, LOWERS BLOOD PRESSURE, AND REDUCES ANXIETY. WITHIN THE YOGA TRADITION SLOW BREATHING IS OFTEN PAIRED WITH A CONTRACTION OF THE GLOTTIS MUSCLES. THIS RESISTANCE BREATH "UJJAYI" IS PERFORMED AT VARIOUS RATES AND RATIOS OF INSPIRATION/EXPIRATION. TO TEST WHETHER UJJAYI HAD ADDITIONAL POSITIVE EFFECTS TO SLOW BREATHING, WE COMPARED BRS AND VENTILATORY CONTROL UNDER DIFFERENT BREATHING PATTERNS (EQUAL/UNEQUAL INSPIRATION/EXPIRATION AT 6 BREATH/MIN, WITH/WITHOUT UJJAYI), IN 17 YOGA-NAIVE YOUNG HEALTHY PARTICIPANTS. BRS INCREASED WITH SLOW BREATHING TECHNIQUES WITH OR WITHOUT EXPIRATORY UJJAYI (P < 0.05 OR HIGHER) EXCEPT WITH INSPIRATORY + EXPIRATORY UJJAYI. THE MAXIMAL INCREASE IN BRS AND DECREASE IN BLOOD PRESSURE WERE FOUND IN SLOW BREATHING WITH EQUAL INSPIRATION AND EXPIRATION. THIS CORRESPONDED WITH A SIGNIFICANT IMPROVEMENT IN OXYGEN SATURATION WITHOUT INCREASE IN HEART RATE AND VENTILATION. UJJAYI SHOWED SIMILAR INCREASE IN OXYGEN SATURATION BUT SLIGHTLY LESSER IMPROVEMENT IN BAROREFLEX SENSITIVITY WITH NO CHANGE IN BLOOD PRESSURE. THE SLOW BREATHING WITH EQUAL INSPIRATION AND EXPIRATION SEEMS THE BEST TECHNIQUE FOR IMPROVING BAROREFLEX SENSITIVITY IN YOGA-NAIVE SUBJECTS. THE EFFECTS OF UJJAYI SEEMS DEPENDENT ON INCREASED INTRATHORACIC PRESSURE THAT REQUIRES GREATER EFFORT THAN NORMAL SLOW BREATHING.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
10 1319  34 HEART RATE VARIABILITY, FLOW, MOOD AND MENTAL STRESS DURING YOGA PRACTICES IN YOGA PRACTITIONERS, NON-YOGA PRACTITIONERS AND PEOPLE WITH METABOLIC SYNDROME. HEART RATE VARIABILITY (HRV) AND RESPIRATORY SINUS ARRHYTHMIA ARE DIRECTLY ASSOCIATED WITH AUTONOMIC FLEXIBILITY, SELF-REGULATION AND WELL-BEING, AND INVERSELY ASSOCIATED WITH PHYSIOLOGICAL STRESS, PSYCHOLOGICAL STRESS AND PATHOLOGY. YOGA ENHANCES AUTONOMIC ACTIVITY, MITIGATES STRESS AND BENEFITS STRESS-RELATED CLINICAL CONDITIONS, YET THE RELATIONSHIP BETWEEN AUTONOMIC ACTIVITY AND PSYCHOPHYSIOLOGICAL RESPONSES DURING YOGA PRACTICES AND STRESSFUL STIMULI HAS NOT BEEN WIDELY EXPLORED. THIS EXPERIMENTAL STUDY EXPLORED THE RELATIONSHIP BETWEEN HRV, MOOD STATES AND FLOW EXPERIENCES IN REGULAR YOGA PRACTITIONERS (YP), NON-YOGA PRACTITIONERS (NY) AND PEOPLE WITH METABOLIC SYNDROME (METS), DURING MENTAL ARITHMETIC STRESS TEST (MAST) AND VARIOUS YOGA PRACTICES. THE STUDY FOUND THAT THE MAST PLACED A CARDIO-AUTONOMIC BURDEN IN ALL PARTICIPANTS WITH THE YP GROUP SHOWING THE GREATEST REACTIVITY AND THE MOST RAPID RECOVERY, WHILE THE METS GROUP HAD SIGNIFICANTLY BLUNTED RECOVERY. THE YP GROUP ALSO REPORTED A HEIGHTENED EXPERIENCE OF FLOW AND POSITIVE MOOD STATES COMPARED TO NY AND METS GROUPS AS WELL AS HAVING A HIGHER VAGAL TONE DURING ALL RESTING CONDITIONS. THESE RESULTS SUGGEST YOGA PRACTITIONERS HAVE A GREATER HOMEOSTATIC CAPACITY AND AUTONOMIC, METABOLIC AND PHYSIOLOGICAL RESILIENCE. FURTHER STUDIES ARE NOW NEEDED TO DETERMINE IF REGULAR YOGA PRACTICE MAY IMPROVE AUTONOMIC FLEXIBILITY IN NON-YOGA PRACTITIONERS AND METABOLIC SYNDROME PATIENTS. CLINICAL TRIAL NO 'ACTRN 2614001075673'.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
11 1871  43 RANGE OF YOGA INTENSITIES FROM SAVASANA TO SWEATING: A SYSTEMATIC REVIEW. BACKGROUND: THERE IS LIMITED RESEARCH EXAMINING THE INTENSITY OF YOGA AND INTENSITY VARIATIONS BETWEEN DIFFERENT STYLES. THE PURPOSE OF THIS REVIEW IS TO EXAMINE THE INTENSITY OF YOGA BASED ON DIFFERENT PHYSIOLOGIC RESPONSES BOTH BETWEEN DIFFERENT YOGA STYLES AND WITHIN STYLES OF YOGA. METHODS: ARTICLES WERE SEARCHED FOR ON THE PUBMED DATABASE IN EARLY 2019. INCLUSION CRITERIA WERE AS FOLLOWS: (1) WRITTEN IN ENGLISH, (2) CITE A SPECIFIC STYLE OF YOGA AND INCLUDE WHOLE YOGA SESSION, AND (3) MEASURE METABOLIC OR HEART RATE RESPONSE. RESULTS: TEN ARTICLES WERE REVIEWED; ARTICLES REPORTED OXYGEN CONSUMPTION (N = 1), HEART RATE (N = 4), OR BOTH VARIABLES (N = 5). YOGA STYLES ASSESSED INCLUDED ASHTANGA (N = 2), BIKRAM (N = 3), GENTLE (N = 1), HATHA (N = 3), IYENGAR (N = 1), POWER (N = 1), AND VINYASA (N = 1). OXYGEN CONSUMPTION COMMONLY CATEGORIZED YOGA AS A LIGHT-INTENSITY ACTIVITY, WHILE HEART RATE RESPONSES CLASSIFIED DIFFERENT YOGA INTO MULTIPLE INTENSITIES. CONCLUSION: THIS REVIEW DEMONSTRATES THAT LARGE DIFFERENCES IN INTENSITY CLASSIFICATIONS ARE OBSERVED BETWEEN DIFFERENT STYLES OF YOGA. FURTHERMORE, METABOLIC AND HEART RATE RESPONSES CAN BE VARIABLE, LEADING TO INCONSISTENT INTENSITY CLASSIFICATIONS. THIS IS LIKELY DUE TO THEIR NONLINEAR RELATIONSHIP DURING YOGA. THUS, IT IS IMPERATIVE THAT THE FIELD OF YOGA RESEARCH WORKS TOGETHER TO CREATE A STANDARD FOR REPORTING YOGA.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
12 2364  43 VOLUNTARY HEART RATE REDUCTION FOLLOWING YOGA USING DIFFERENT STRATEGIES. BACKGROUND/AIMS: ONE MONTH OF YOGA TRAINING HAS BEEN SHOWN TO REDUCE THE PULSE RATE VOLUNTARILY WITHOUT USING EXTERNAL CUES. HENCE, THE PRESENT STUDY WAS DESIGNED TO UNDERSTAND THE STRATEGIES USED BY YOGA PRACTITIONERS AND AUTONOMIC CHANGES ASSOCIATED WITH VOLUNTARY HEART RATE REDUCTION. MATERIALS AND METHODS: FIFTY VOLUNTEERS (GROUP MEAN AGE +/- S.D., 25.4 +/- 4.8 YEARS; 25 MALES) WERE ASSESSED IN TWO TRIALS ON SEPARATE DAYS. EACH TRIAL WAS FOR 12 MINUTES, WITH A 'PRE' STATE AND 'DURING' STATE OF 6 MINUTES EACH. FOR BOTH TRIALS THE 'PRE' STATE WAS RELAXATION WITH EYES CLOSED. IN THE 'DURING' STATE OF TRIAL I, SUBJECTS WERE ASKED TO VOLUNTARILY REDUCE THEIR HEART RATE USING A STRATEGY OF THEIR CHOICE. FROM THEIR RESPONSES TO SPECIFIC QUESTIONS IT WAS DETERMINED THAT 22 OUT OF 50 PERSONS USED BREATH REGULATION AS A STRATEGY. HENCE, IN THE 'DURING' STATE OF TRIAL II, SUBJECTS WERE ASKED TO VOLUNTARILY REDUCE THEIR HEART RATE BY BREATH REGULATION. RESULTS: IN THE FIRST TRIAL, THE HEART RATE WAS REDUCED BY AN AVERAGE OF 19.6 BEATS PER MINUTE AND IN THE SECOND TRIAL (WITH BREATH REGULATION EXCLUSIVELY) AN AVERAGE DECREASE OF 22.2 BEATS PER MINUTE WAS ACHIEVED. CONCLUSIONS: HENCE, THE STRATEGY USED DID NOT MARKEDLY ALTER THE OUTCOME.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
13 1691  30 OXYGEN CONSUMPTION AND RESPIRATION DURING AND AFTER TWO YOGA RELAXATION TECHNIQUES. CYCLIC MEDITATION (CM) IS A TECHNIQUE WHICH COMBINES "STIMULATING" AND "CALMING" PRACTICES, BASED ON A STATEMENT IN ANCIENT YOGA TEXTS SUGGESTING THAT SUCH A COMBINATION MAY BE ESPECIALLY HELPFUL TO REACH A STATE OF MENTAL EQUILIBRIUM. THE OXYGEN CONSUMPTION, BREATH RATE AND BREATH VOLUME OF 50 MALE VOLUNTEERS (GROUP MEAN AGE+/-SD, 27+/-6.3 YEARS) WERE ASSESSED BEFORE, DURING, AND AFTER SESSIONS OF CM AND SESSIONS OF SUPINE REST IN THE CORPSE POSTURE (SHAVASANA, SH). THE SESSIONS WERE ONE DAY APART AND THE ORDER WAS ALTERNATED. THE OXYGEN CONSUMPTION, BREATH RATE AND BREATH VOLUME INCREASED DURING THE "STIMULATING" PRACTICES OF CM, RETURNED TO THE BASELINE DURING THE "CALMING" PRACTICES, AND THE OXYGEN CONSUMPTION DECREASED BY 19.3 PERCENT BELOW BASELINE VALUES AFTER CM. DURING THE SH SESSION THE OXYGEN CONSUMPTION, BREATH RATE AND BREATH VOLUME REDUCED; HOWEVER THE DECREASE IN OXYGEN CONSUMPTION AFTER SH WAS LESS THAN AFTER CM (I.E., 4.8 PERCENT). THE RESULTS SUPPORT THE IDEA THAT A COMBINATION OF YOGA POSTURES WITH SUPINE REST (IN CM) REDUCES THE OXYGEN CONSUMPTION MORE THAN RESTING SUPINE ALONE DOES.	2006	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
14 1318  58 HEART RATE VARIABILITY IN CHRONIC LOW BACK PAIN PATIENTS RANDOMIZED TO YOGA OR STANDARD CARE. BACKGROUND: CHRONIC PAIN CAN ALTER THE AUTONOMIC BALANCE WITH INCREASED SYMPATHETIC ACTIVITY REFLECTED IN ALTERED HEART RATE VARIABILITY (HRV). IT HAS BEEN PROPOSED THAT YOGA CAN BE USEFUL TO CORRECT THE AUTONOMIC IMBALANCE IN PATIENTS WITH CHRONIC PAIN WHO HAVE REDUCED HRV. METHODS AND DESIGNS: IN THE PRESENT RANDOMIZED CONTROLLED TRIAL 62 PATIENTS WITH CHRONIC LOW BACK PAIN ASSOCIATED WITH ALTERED ALIGNMENT OF INTERVERTEBRAL DISCS (AGED BETWEEN 20 AND 45 YEARS, 32 MALES) WERE RANDOMIZED TO 2 GROUPS. ONE GROUP RECEIVED YOGA FOR 3 MONTHS WHILE THE OTHER GROUP CARRIED OUT STANDARD MEDICAL CARE BASED ON THE PHYSICIAN'S ADVICE. THE DURATION WAS THE SAME, I.E., 3 MONTHS. THE HEART RATE VARIABILITY AND RATE OF RESPIRATION WERE ASSESSED AT BASELINE AND AT THE END OF 3 MONTHS. RESULTS: THERE WAS A SIGNIFICANT DIFFERENCE IN THE BASELINE (PRE) VALUES BETWEEN GROUPS (P = 0.008) FOR RESPIRATION RATE WHICH WAS HIGHER IN THE YOGA GROUP. THE CHANGES REPORTED BELOW ARE PRE-POST COMPARISONS WITHIN EACH GROUP. THE YOGA GROUP SHOWED A SIGNIFICANT (P < 0.05; REPEATED MEASURES ANOVA, POST-HOC ANALYSES) DECREASE IN THE LF POWER OF HRV, RATE OF RESPIRATION AND A SIGNIFICANT INCREASE IN THE HF POWER OF HRV AND IN THE PNN50. CONCLUSION: THE RESULTS SUGGEST THAT YOGA PRACTICE CAN SHIFT THE AUTONOMIC BALANCE TOWARDS VAGAL DOMINANCE IN PATIENTS WITH CHRONIC LOW BACK PAIN ASSOCIATED WITH ALTERED ALIGNMENT OF INTERVERTEBRAL DISCS. TRIAL REGISTRATION: THE STUDY IS REGISTERED WITH THE CLINICAL TRIALS REGISTRY OF INDIA ( CTRI/2012/11/003094 ) AND CAN BE ACCESSED AT.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
15 2543 146 YOGA FOR ASTHMA. BACKGROUND: ASTHMA IS A COMMON CHRONIC INFLAMMATORY DISORDER AFFECTING ABOUT 300 MILLION PEOPLE WORLDWIDE. AS A HOLISTIC THERAPY, YOGA HAS THE POTENTIAL TO RELIEVE BOTH THE PHYSICAL AND PSYCHOLOGICAL SUFFERING OF PEOPLE WITH ASTHMA, AND ITS POPULARITY HAS EXPANDED GLOBALLY. A NUMBER OF CLINICAL TRIALS HAVE BEEN CARRIED OUT TO EVALUATE THE EFFECTS OF YOGA PRACTICE, WITH INCONSISTENT RESULTS. OBJECTIVES: TO ASSESS THE EFFECTS OF YOGA IN PEOPLE WITH ASTHMA. SEARCH METHODS: WE SYSTEMATICALLY SEARCHED THE COCHRANE AIRWAYS GROUP REGISTER OF TRIALS, WHICH IS DERIVED FROM SYSTEMATIC SEARCHES OF BIBLIOGRAPHIC DATABASES INCLUDING THE COCHRANE CENTRAL REGISTER OF CONTROLLED TRIALS (CENTRAL), MEDLINE, EMBASE, CINAHL, AMED, AND PSYCINFO, AND HANDSEARCHING OF RESPIRATORY JOURNALS AND MEETING ABSTRACTS. WE ALSO SEARCHED PEDRO. WE SEARCHED CLINICALTRIALS.GOV AND THE WHO ICTRP SEARCH PORTAL. WE SEARCHED ALL DATABASES FROM THEIR INCEPTION TO 22 JULY 2015, AND USED NO RESTRICTION ON LANGUAGE OF PUBLICATION. WE CHECKED THE REFERENCE LISTS OF ELIGIBLE STUDIES AND RELEVANT REVIEW ARTICLES FOR ADDITIONAL STUDIES. WE ATTEMPTED TO CONTACT INVESTIGATORS OF ELIGIBLE STUDIES AND EXPERTS IN THE FIELD TO LEARN OF OTHER PUBLISHED AND UNPUBLISHED STUDIES. SELECTION CRITERIA: WE INCLUDED RANDOMISED CONTROLLED TRIALS (RCTS) THAT COMPARED YOGA WITH USUAL CARE (OR NO INTERVENTION) OR SHAM INTERVENTION IN PEOPLE WITH ASTHMA AND REPORTED AT LEAST ONE OF THE FOLLOWING OUTCOMES: QUALITY OF LIFE, ASTHMA SYMPTOM SCORE, ASTHMA CONTROL, LUNG FUNCTION MEASURES, ASTHMA MEDICATION USAGE, AND ADVERSE EVENTS. DATA COLLECTION AND ANALYSIS: WE EXTRACTED BIBLIOGRAPHIC INFORMATION, CHARACTERISTICS OF PARTICIPANTS, CHARACTERISTICS OF INTERVENTIONS AND CONTROLS, CHARACTERISTICS OF METHODOLOGY, AND RESULTS FOR THE OUTCOMES OF OUR INTEREST FROM ELIGIBLE STUDIES. FOR CONTINUOUS OUTCOMES, WE USED MEAN DIFFERENCE (MD) WITH 95% CONFIDENCE INTERVAL (CI) TO DENOTE THE TREATMENT EFFECTS, IF THE OUTCOMES WERE MEASURED BY THE SAME SCALE ACROSS STUDIES. ALTERNATIVELY, IF THE OUTCOMES WERE MEASURED BY DIFFERENT SCALES ACROSS STUDIES, WE USED STANDARDISED MEAN DIFFERENCE (SMD) WITH 95% CI. FOR DICHOTOMOUS OUTCOMES, WE USED RISK RATIO (RR) WITH 95% CI TO MEASURE THE TREATMENT EFFECTS. WE PERFORMED META-ANALYSIS WITH REVIEW MANAGER 5.3. WE USED THE FIXED-EFFECT MODEL TO POOL THE DATA, UNLESS THERE WAS SUBSTANTIAL HETEROGENEITY AMONG STUDIES, IN WHICH CASE WE USED THE RANDOM-EFFECTS MODEL INSTEAD. FOR OUTCOMES INAPPROPRIATE OR IMPOSSIBLE TO POOL QUANTITATIVELY, WE CONDUCTED A DESCRIPTIVE ANALYSIS AND SUMMARISED THE FINDINGS NARRATIVELY. MAIN RESULTS: WE INCLUDED 15 RCTS WITH A TOTAL OF 1048 PARTICIPANTS. MOST OF THE TRIALS WERE CONDUCTED IN INDIA, FOLLOWED BY EUROPE AND THE UNITED STATES. THE MAJORITY OF PARTICIPANTS WERE ADULTS OF BOTH SEXES WITH MILD TO MODERATE ASTHMA FOR SIX MONTHS TO MORE THAN 23 YEARS. FIVE STUDIES INCLUDED YOGA BREATHING ALONE, WHILE THE OTHER STUDIES ASSESSED YOGA INTERVENTIONS THAT INCLUDED BREATHING, POSTURE, AND MEDITATION. INTERVENTIONS LASTED FROM TWO WEEKS TO 54 MONTHS, FOR NO MORE THAN SIX MONTHS IN THE MAJORITY OF STUDIES. THE RISK OF BIAS WAS LOW ACROSS ALL DOMAINS IN ONE STUDY AND UNCLEAR OR HIGH IN AT LEAST ONE DOMAIN FOR THE REMAINDER.THERE WAS SOME EVIDENCE THAT YOGA MAY IMPROVE QUALITY OF LIFE (MD IN ASTHMA QUALITY OF LIFE QUESTIONNAIRE (AQLQ) SCORE PER ITEM 0.57 UNITS ON A 7-POINT SCALE, 95% CI 0.37 TO 0.77; 5 STUDIES; 375 PARTICIPANTS), IMPROVE SYMPTOMS (SMD 0.37, 95% CI 0.09 TO 0.65; 3 STUDIES; 243 PARTICIPANTS), AND REDUCE MEDICATION USAGE (RR 5.35, 95% CI 1.29 TO 22.11; 2 STUDIES) IN PEOPLE WITH ASTHMA. THE MD FOR AQLQ SCORE EXCEEDED THE MINIMAL CLINICALLY IMPORTANT DIFFERENCE (MCID) OF 0.5, BUT WHETHER THE MEAN CHANGES EXCEEDED THE MCID FOR ASTHMA SYMPTOMS IS UNCERTAIN DUE TO THE LACK OF AN ESTABLISHED MCID IN THE SEVERITY SCORES USED IN THE INCLUDED STUDIES. THE EFFECTS OF YOGA ON CHANGE FROM BASELINE FORCED EXPIRATORY VOLUME IN ONE SECOND (MD 0.04 LITRES, 95% CI -0.10 TO 0.19; 7 STUDIES; 340 PARTICIPANTS; I(2) = 68%) WERE NOT STATISTICALLY SIGNIFICANT. TWO STUDIES INDICATED IMPROVED ASTHMA CONTROL, BUT DUE TO VERY SIGNIFICANT HETEROGENEITY (I(2) = 98%) WE DID NOT POOL DATA. NO SERIOUS ADVERSE EVENTS ASSOCIATED WITH YOGA WERE REPORTED, BUT THE DATA ON THIS OUTCOME WAS LIMITED. AUTHORS' CONCLUSIONS: WE FOUND MODERATE-QUALITY EVIDENCE THAT YOGA PROBABLY LEADS TO SMALL IMPROVEMENTS IN QUALITY OF LIFE AND SYMPTOMS IN PEOPLE WITH ASTHMA. THERE IS MORE UNCERTAINTY ABOUT POTENTIAL ADVERSE EFFECTS OF YOGA AND ITS IMPACT ON LUNG FUNCTION AND MEDICATION USAGE. RCTS WITH A LARGE SAMPLE SIZE AND HIGH METHODOLOGICAL AND REPORTING QUALITY ARE NEEDED TO CONFIRM THE EFFECTS OF YOGA FOR ASTHMA.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
16  297  40 ALTERNATE NOSTRIL BREATHING AT DIFFERENT RATES AND ITS INFLUENCE ON HEART RATE VARIABILITY IN NON PRACTITIONERS OF YOGA. INTRODUCTION: HEART RATE VARIABILITY IS A MEASURE OF MODULATION IN AUTONOMIC INPUT TO THE HEART AND IS ONE OF THE MARKERS OF AUTONOMIC FUNCTIONS. THOUGH THERE ARE MANY STUDIES ON THE LONG TERM INFLUENCE OF BREATHING ON HRV (HEART RATE VARIABILITY) THERE ARE ONLY A FEW STUDIES ON THE IMMEDIATE EFFECT OF BREATHING ESPECIALLY ALTERNATE NOSTRIL BREATHING ON HRV. THIS STUDY FOCUSES ON THE IMMEDIATE EFFECTS OF ALTERNATE NOSTRIL BREATHING AND THE INFLUENCE OF DIFFERENT BREATHING RATES ON HRV. MATERIALS AND METHODS: THE STUDY WAS DONE ON 25 SUBJECTS IN THE AGE GROUP OF 17-35 YEARS. ECG AND RESPIRATION WERE RECORDED BEFORE INTERVENTION AND IMMEDIATELY AFTER THE SUBJECTS WERE ASKED TO PERFORM ALTERNATE NOSTRIL BREATHING FOR FIVE MINUTES. RESULTS: LOW FREQUENCY (LF) WHICH IS A MARKER OF SYMPATHETIC ACTIVITY INCREASED, HIGH FREQUENCY (HF) WHICH IS A MARKER OF PARASYMPATHETIC ACTIVITY DECREASED AND THEIR RATIO LF/HF WHICH IS A MARKER OF SYMPATHO/VAGAL BALANCE INCREASED IMMEDIATELY AFTER 6 AND 12 MINUTES IN COMPARISON TO BASELINE VALUES WHEREAS THERE WAS NO SIGNIFICANT DIFFERENCE IN THE MEANS OF THESE COMPONENTS WHEN BOTH 6 AND 12 MINUTES WERE COMPARED. CONCLUSION: IMMEDIATE EFFECTS OF ALTERNATE NOSTRIL BREATHING ON HRV IN NON PRACTITIONERS OF YOGIC BREATHING ARE VERY DIFFERENT FROM THE LONG TERM INFLUENCE OF YOGIC BREATHING ON HRV WHICH SHOW A PREDOMINANT PARASYMPATHETIC INFLUENCE ON THE HEART.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
17  448  51 CHANGES IN AUTONOMIC VARIABLES FOLLOWING TWO MEDITATIVE STATES DESCRIBED IN YOGA TEXTS. OBJECTIVES: IN ANCIENT YOGA TEXTS THERE ARE TWO MEDITATIVE STATES DESCRIBED. ONE IS DHARANA, WHICH REQUIRES FOCUSING, THE SECOND IS DHYANA, DURING WHICH THERE IS NO FOCUSING, BUT AN EXPANSIVE MENTAL STATE IS REACHED. WHILE AN EARLIER STUDY DID SHOW IMPROVED PERFORMANCE IN AN ATTENTION TASK AFTER DHARANA, THE AUTONOMIC CHANGES DURING THESE TWO STATES HAVE NOT BEEN STUDIED. METHODS: AUTONOMIC AND RESPIRATORY VARIABLES WERE ASSESSED IN 30 HEALTHY MALE VOLUNTEERS (GROUP MEAN AGE +/- SD, 29.1 +/- 5.1 YEARS) DURING FOUR MENTAL STATES DESCRIBED IN TRADITIONAL YOGA TEXTS. THESE FOUR MENTAL STATES ARE RANDOM THINKING (CANCALATA), NONMEDITATIVE FOCUSING (EKAGRATA), MEDITATIVE FOCUSING (DHARANA), AND EFFORTLESS MEDITATION (DHYANA). ASSESSMENTS WERE MADE BEFORE (5 MINUTES), DURING (20 MINUTES), AND AFTER (5 MINUTES), EACH OF THE FOUR STATES, ON FOUR SEPARATE DAYS. RESULTS: DURING DHYANA THERE WAS A SIGNIFICANT INCREASE IN THE SKIN RESISTANCE LEVEL (P<0.001; POST HOC ANALYSIS FOLLOWING ANOVA, DURING COMPARED TO PRE) AND PHOTO-PLETHYSMOGRAM AMPLITUDE (P<0.05), WHEREAS THERE WAS A SIGNIFICANT DECREASE IN THE HEART RATE (P<0.001) AND BREATH RATE (P<0.001). THERE WAS A SIGNIFICANT DECREASE IN THE LOW FREQUENCY (LF) POWER (P<0.001) AND INCREASE IN THE HIGH FREQUENCY (HF) POWER (P<0.001) IN THE FREQUENCY DOMAIN ANALYSIS OF THE HEART RATE VARIABILITY (HRV) SPECTRUM, ON WHICH HF POWER IS ASSOCIATED WITH PARASYMPATHETIC ACTIVITY. THERE WAS ALSO A SIGNIFICANT INCREASE IN THE NN50 COUNT (THE NUMBER OF INTERVAL DIFFERENCES OF SUCCESSIVE NN INTERVALS GREATER THAN 50 MS; P<0.001) AND THE PNN50 (THE PROPORTION DERIVED BY DIVIDING NN50 BY THE TOTAL NUMBER OF NN INTERVALS; P<0.001) IN TIME DOMAIN ANALYSIS OF HRV, BOTH INDICATIVE OF PARASYMPATHETIC ACTIVITY. CONCLUSIONS: MAXIMUM CHANGES WERE SEEN IN AUTONOMIC VARIABLES AND BREATH RATE DURING THE STATE OF EFFORTLESS MEDITATION (DHYANA). THE CHANGES WERE ALL SUGGESTIVE OF REDUCED SYMPATHETIC ACTIVITY AND/OR INCREASED VAGAL MODULATION. DURING DHARANA THERE WAS AN INCREASE IN SKIN RESISTANCE. THE CHANGES IN HRV DURING EKAGRATA AND CANCALATA WERE INCONCLUSIVE.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
18 2863  32 YOGA-BASED GUIDED RELAXATION REDUCES SYMPATHETIC ACTIVITY JUDGED FROM BASELINE LEVELS. 35 MALE VOLUNTEERS WHOSE AGES RANGED FROM 20 TO 46 YEARS WERE STUDIED IN TWO SESSIONS OF YOGA-BASED GUIDED RELAXATION AND SUPINE REST. ASSESSMENTS OF AUTONOMIC VARIABLES WERE MADE FOR 15 SUBJECTS, BEFORE, DURING, AND AFTER THE PRACTICES, WHEREAS OXYGEN CONSUMPTION AND BREATH VOLUME WERE RECORDED FOR 25 SUBJECTS BEFORE AND AFTER BOTH TYPES OF RELAXATION. A SIGNIFICANT DECREASE IN OXYGEN CONSUMPTION AND INCREASE IN BREATH VOLUME WERE RECORDED AFTER GUIDED RELAXATION (PAIRED T TEST). THERE WERE COMPARABLE REDUCTIONS IN HEART RATE AND SKIN CONDUCTANCE DURING BOTH TYPES OF RELAXATION. DURING GUIDED RELAXATION THE POWER OF THE LOW FREQUENCY COMPONENT OF THE HEART-RATE VARIABILITY SPECTRUM REDUCED, WHEREAS THE POWER OF THE HIGH FREQUENCY COMPONENT INCREASED, SUGGESTING REDUCED SYMPATHETIC ACTIVITY. ALSO, SUBJECTS WITH A BASELINE RATIO OF LF/HF > 0.5 SHOWED A SIGNIFICANT DECREASE IN THE RATIO AFTER GUIDED RELAXATION, WHILE SUBJECTS WITH A RATIO < OR = 0.5 AT BASELINE SHOWED NO SUCH CHANGE. THE RESULTS SUGGEST THAT SYMPATHETIC ACTIVITY DECREASED AFTER GUIDED RELAXATION BASED ON YOGA, DEPENDING ON THE BASELINE LEVELS.	2002	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
19 1317  41 HEART RATE VARIABILITY CHANGES DURING HIGH FREQUENCY YOGA BREATHING AND BREATH AWARENESS. BACKGROUND: PRE AND POST COMPARISON AFTER ONE MINUTE OF HIGH FREQUENCY YOGA BREATHING (HFYB) SUGGESTED THAT THE HFYB MODIFIES THE AUTONOMIC STATUS BY INCREASING SYMPATHETIC MODULATION, BUT ITS EFFECT DURING THE PRACTICE WAS NOT ASSESSED. METHODS: THIRTY-EIGHT MALE VOLUNTEERS WITH GROUP AVERAGE AGE +/- S.D., 23.3 +/- 4.4 YEARS WERE EACH ASSESSED ON TWO SEPARATE DAYS IN TWO SESSIONS, (I) HFYB AND (II) BREATH AWARENESS. EACH SESSION WAS FOR 35 MINUTES, WITH 3 PERIODS, I.E., PRE (5 MINUTES), DURING HFYB OR BREATH AWARENESS (15 MINUTES) AND POST (5 MINUTES). RESULTS: THERE WAS A SIGNIFICANT DECREASE IN NN50, PNN50 AND THE MEAN RR INTERVAL DURING AND AFTER HFYB AND AFTER BREATH AWARENESS, COMPARED TO THE RESPECTIVE 'PRE' VALUES (P < 0.05) (REPEATED MEASURES ANOVA FOLLOWED BY POST-HOC ANALYSIS). THE LF POWER INCREASED AND HF POWER DECREASED DURING AND AFTER BREATH AWARENESS AND LF/HF RATIO INCREASED AFTER BREATH AWARENESS (P < 0.05). CONCLUSION: THE RESULTS SUGGEST THAT THERE WAS REDUCED PARASYMPATHETIC MODULATION DURING AND AFTER HFYB AND INCREASED SYMPATHETIC MODULATION WITH REDUCED PARASYMPATHETIC MODULATION DURING AND AFTER BREATH AWARENESS.	2011	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
20 1578  51 MEASUREMENT OF THE EFFECT OF ISHA YOGA ON CARDIAC AUTONOMIC NERVOUS SYSTEM USING SHORT-TERM HEART RATE VARIABILITY. BACKGROUND: BENEFICIAL EFFECTS OF YOGA HAVE BEEN POSTULATED TO BE DUE TO MODULATION OF THE AUTONOMIC NERVOUS SYSTEM. OBJECTIVE: TO ASSESS THE EFFECT OF ISHA YOGA PRACTICES ON CARDIOVASCULAR AUTONOMIC NERVOUS SYSTEM THROUGH SHORT-TERM HEART RATE VARIABILITY (HRV). DESIGN OF THE STUDY: SHORT-TERM HRV OF LONG-TERM REGULAR HEALTHY 14 (12 MALES AND 2 FEMALES) ISHA YOGA PRACTITIONERS WAS COMPARED WITH THAT OF AGE- AND GENDER-MATCHED 14 (12 MALES AND 2 FEMALES) NON-YOGA PRACTITIONERS. METHODS AND MATERIALS: ECG LEAD II AND RESPIRATORY MOVEMENTS WERE RECORDED IN BOTH GROUPS USING POLYRITE DURING SUPINE REST FOR 5 MIN AND CONTROLLED DEEP BREATHING FOR 1 MINUTE. FREQUENCY DOMAIN ANALYSIS [RR INTERVAL IS THE MEAN OF DISTANCE BETWEEN SUBSEQUENT R WAVE PEAKS IN ECG], LOW FREQUENCY (LF) POWER, HIGH FREQUENCY (HF) POWER, LF NORMALIZED UNITS (NU), HF NU, LF/HF RATIO] AND TIME DOMAIN ANALYSIS [STANDARD DEVIATION OF NORMAL TO NORMAL INTERVAL (SDNN), SQUARE OF MEAN SQUARED DIFFERENCE OF SUCCESSIVE NORMAL TO NORMAL INTERVALS (RMSSD), NORMAL TO NORMAL INTERVALS WHICH ARE DIFFERING BY 50 MS (NN50), AND PERCENTAGE OF NN50 (PNN50)] OF HRV VARIABLES WERE ANALYZED FOR SUPINE REST. TIME DOMAIN ANALYSIS WAS RECORDED FOR DEEP BREATHING. RESULTS: RESULTS SHOWED STATISTICALLY SIGNIFICANT DIFFERENCES BETWEEN ISHA YOGA PRACTITIONERS AND CONTROLS IN BOTH FREQUENCY AND TIME DOMAIN ANALYSES OF HRV INDICES, WITH NO DIFFERENCE IN RESTING HEART RATE BETWEEN THE GROUPS. CONCLUSIONS: PRACTITIONERS OF ISHA YOGA SHOWED WELL-BALANCED BENEFICIAL ACTIVITY OF VAGAL EFFERENTS, AN OVERALL INCREASED HRV, AND SYMPATHOVAGAL BALANCE, COMPARED TO NON-YOGA PRACTITIONERS DURING SUPINE REST AND DEEP BREATHING.	2012