1 2193 158 THE EFFECTS OF YOGA TRAINING AND A SINGLE BOUT OF YOGA ON DELAYED ONSET MUSCLE SORENESS IN THE LOWER EXTREMITY. THE PURPOSE OF THIS STUDY WAS TO DETERMINE THE EFFECTS OF YOGA TRAINING AND A SINGLE BOUT OF YOGA ON THE INTENSITY OF DELAYED ONSET MUSCLE SORENESS (DOMS). 24 YOGA-TRAINED (YT; N = 12) AND NON-YOGA-TRAINED (CON; N = 12), MATCHED WOMEN VOLUNTEERS WERE ADMINISTERED A DOMS-INDUCING BENCH-STEPPING EXERCISE. MUSCLE SORENESS WAS ASSESSED AT BASELINE, 24, 48, 72, 96, AND 120 HOURS AFTER BENCH-STEPPING USING A VISUAL ANALOG SCALE (VAS). GROUPS WERE ALSO COMPARED ON BODY AWARENESS (BA), FLEXIBILITY USING THE SIT-AND-REACH TEST (SR), AND PERCEIVED EXERTION (RPE). STATISTICAL SIGNIFICANCE WAS ACCEPTED AT P </= 0.05. A 2 X 2 MIXED FACTORIAL ANOVA WITH REPEATED MEASURES AT 24 AND 48 HOURS REVEALED A SIGNIFICANT (P < 0.05) GROUP MAIN EFFECT WITH VAS SCORES GREATER FOR CON THAN YT. PAIRED T-TESTS REVEALED THAT IN YT, VAS SCORES WERE HIGHER BEFORE YOGA CLASS THAN AFTER YOGA CLASS AT 24 HOURS (21.4 [+/- 6.9] MM VS. 11.1 [+/- 4.1] MM; P = 0.02). THE SR WAS GREATER IN YT THAN IN CON (65.0 [+/- 7.9] CM VS. 33.3 [+/- 7.0] CM; P < 0.01); HOWEVER, NO DIFFERENCES WERE FOUND BETWEEN YOGA AND CONTROL IN BA (94.0 [+/- 4.4] UNITS VS. 83.8 [+/- 3.7] UNITS; P = 0.21) OR IN RPE AT 5-MINUTE INTERVALS (2.9 [+/- 0.3], 5.3 [+/- 0.8], 5.8 [+/- 0.9], AND 5.2 [+/- 0.8] VS. 2.5 [+/- 0.3], 4.0 [+/- 0.5], 4.2 [+/- 0.3], AND 4.9 [+/- 0.4]. YOGA TRAINING AND A SINGLE BOUT OF YOGA APPEAR TO ATTENUATE PEAK MUSCLE SORENESS IN WOMEN FOLLOWING A BOUT OF ECCENTRIC EXERCISE. THESE FINDINGS HAVE SIGNIFICANT IMPLICATIONS FOR COACHES, ATHLETES, AND THE EXERCISING PUBLIC WHO MAY WANT TO IMPLEMENT YOGA TRAINING AS A PRESEASON REGIMEN OR SUPPLEMENTAL ACTIVITY TO LESSEN THE SYMPTOMS ASSOCIATED WITH MUSCLE SORENESS.	2004	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
2 1283  31 GLUTEAL MUSCLE ACTIVATION DURING COMMON YOGA POSES. BACKGROUND: APPROXIMATELY 24% OF PHYSICAL THERAPISTS REPORT REGULARLY USING YOGA TO STRENGTHEN MAJOR MUSCLE GROUPS. ALTHOUGH CLINICIANS AND ATHLETES OFTEN USE YOGA AS A FORM OF STRENGTH TRAINING, LITTLE IS KNOWN ABOUT THE ACTIVATION OF SPECIFIC MUSCLE GROUPS DURING YOGA POSES, INCLUDING THE GLUTEUS MAXIMUS AND MEDIUS. HYPOTHESIS/PURPOSE: THE PURPOSE OF THIS STUDY WAS TO MEASURE GLUTEUS MAXIMIMUS AND GLUTEUS MEDIUS ACTIVATION VIA ELECTROMYOGRAPHY (EMG) DURING FIVE COMMON YOGA POSES. A SECONDARY PURPOSE OF THE CURRENT STUDY WAS TO EXAMINE DIFFERENCES IN MUSCLE ACTIVATION BETWEEN SEXES AND EXPERIENCE LEVELS. STUDY DESIGN: CROSS-SECTIONAL. METHODS: THIRTY-ONE HEALTHY MALES AND FEMALES AGED 18-35 YEARS WERE TESTED DURING FIVE YOGA POSES PERFORMED IN A RANDOMIZED ORDER. SURFACE EMG ELECTRODES WERE PLACED ON SUBJECTS' RIGHT GLUTEUS MAXIMUS AND GLUTEUS MEDIUS. SUBJECTS PERFORMED THE POSES ON BOTH SIDES FOLLOWING A MAXIMAL VOLUNTARY ISOMETRIC CONTRACTION (MVIC) TEST FOR EACH MUSCLE. ALL YOGA POSE EMG DATA WERE NORMALIZED TO THE CORRESPONDING MUSCLE MVIC DATA. RESULTS: HIGHEST GLUTEUS MAXIMUS ACTIVATION OCCURRED DURING HALF MOON POSE ON THE LIFTED/BACK LEG (63.3% MVIC), FOLLOWED BY THE STANCE/FRONT LEG DURING HALF MOON POSE (61.7%), THEN THE LIFTED/BACK LEG DURING WARRIOR THREE POSE (46.1%). HIGHEST GLUTEUS MEDIUS ACTIVATION OCCURRED DURING HALF MOON POSE ON THE LIFTED/BACK LEG (41.9%), FOLLOWED BY THE LIFTED/BACK LEG DURING THE WARRIOR THREE POSE (41.6%). A SIGNIFICANT DIFFERENCE WAS FOUND IN %MVIC OF GLUTEUS MEDIUS ACTIVITY BETWEEN MALE AND FEMALE SUBJECTS (P = 0.026), AND BETWEEN EXPERIENCED AND INEXPERIENCED SUBJECTS (P = 0.050), INDICATING HIGHER ACTIVATION AMONG MALES AND INEXPERIENCED SUBJECTS, RESPECTIVELY. CONCLUSION: HALF MOON POSE AND WARRIOR THREE POSE ELICITED THE HIGHEST ACTIVATION FOR BOTH THE GLUTEUS MAXIMUS AND THE GLUTEUS MEDIUS. HIGHER GLUTEUS MEDIUS ACTIVATION WAS SEEN IN MALES AND INEXPERIENCED SUBJECTS COMPARED TO THEIR FEMALE AND EXPERIENCED COUNTERPARTS. LEVEL OF EVIDENCE: 3.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
3  323  27 ANTHROPOMETRIC AND PHYSIOLOGIC PROFILES OF FEMALE PROFESSIONAL YOGA PRACTITIONERS AND ENERGY EXPENDITURE DURING ASANAS EXECUTION. AIM: THE PRESENT STUDY AIMED TO: 1) DEFINE THE ANTHROPOMETRIC AND PHYSIOLOGICAL PROFILES OF FEMALE PROFESSIONAL YOGA PRACTITIONER COMPARED TO THAT OF OTHER ATHLETES; 2) EVALUATE THE ENERGY EXPENDITURE (EE) DURING A YOGA SESSION. METHODS: THE PERCENTAGE FAT MASS (FM%) AND FAT FREE MASS (FFM%), THE MAXIMAL AEROBIC POWER (VO2MAX), THE MAXIMAL VOLUNTARY CONTRACTION (MVC) OF KNEE EXTENSOR MUSCLES AND THE MAXIMAL ANAEROBIC ALACTACID POWER (WMAX) WERE ASSESSED IN A GROUP OF YOGA PRACTITIONERS (YO), LONG DISTANCE RUNNERS (LDR), SPRINTERS (SPR), KARATE PRACTITIONERS (KA) AND SEDENTARY CONTROL SUBJECTS (CON). EE WAS EVALUATED IN YO DURING A YOGA SESSION (EXECUTION OF A SEQUENCE OF SIX YOGA POSTURES, CALLED ASANAS). RESULTS: FM% WAS SIGNIFICANTLY HIGHER IN CON (24.2+/-2.6%) THAN IN OTHER GROUPS (18+/-1.9%, POOLED DATA, P<0.05). FFM% DID NOT DIFFER AMONG GROUPS. VO2MAX WAS HIGHER IN LDR (55.6+/-1.8 ML MIN-1 KG-1) COMPARED TO OTHER GROUPS (41.7+/-3 ML MIN-1 KG-1, POOLED DATA, P<0.05). MVC AND WMAX WERE HIGHER IN YO, SPR AND KA THAN IN LDR AND CON (P<0.05). IN YO, EE INCREASED IN COMPARISON TO BASELINE, DURING SIRASANA EXECUTION ONLY (+59%, P<0.05). CONCLUSION: THESE DATA SUGGEST THAT CHRONIC YOGA PRACTICE IS ASSOCIATED WITH 1) VALUES OF FM%, FFM%, MVC AND WMAX SIMILAR TO THOSE INDUCED BY SPORTS REQUIRING HIGH DEGREE OF FORCE AND POWER OF LOWER LIMB MUSCLES, WITH MAXIMAL AEROBIC PERFORMANCE SIMILAR TO CONTROL SUBJECTS; 2) LOW EE DURING MOST ASANAS EXECUTION.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
4 1327  44 HIGH RATE OF RETURN TO YOGA FOR ATHLETES AFTER HIP ARTHROSCOPY FOR FEMOROACETABULAR IMPINGEMENT SYNDROME. BACKGROUND: FEMOROACETABULAR IMPINGEMENT SYNDROME (FAIS) IS MOST COMMONLY DIAGNOSED IN PATIENTS WHO PERFORM ACTIVITIES THAT REQUIRE REPETITIVE HIP FLEXION AND ROTATIONAL LOADING. YOGA IS AN ACTIVITY GROWING IN POPULARITY THAT INVOLVES THESE MOTIONS. THE PURPOSE OF THIS STUDY WAS TO EVALUATE PATIENTS' ABILITY TO RETURN TO YOGA AFTER HIP ARTHROSCOPY FOR FAIS. HYPOTHESIS: THERE WOULD BE A HIGH RATE OF RETURN TO YOGA AFTER HIP ARTHROSCOPY. STUDY DESIGN: RETROSPECTIVE ANALYSIS. LEVEL OF EVIDENCE: LEVEL 4. METHODS: CONSECUTIVE PATIENTS WITH FAIS WHO HAD IDENTIFIED THEMSELVES AS PARTICIPATING IN YOGA AND HAD UNDERGONE HIP ARTHROSCOPY FOR THE TREATMENT OF FAIS BETWEEN 2012 AND 2015 WERE REVIEWED. DEMOGRAPHIC DATA WERE COLLECTED AND ASSESSED FOR ALL PATIENTS, AS WELL AS PREOPERATIVE PHYSICAL EXAMINATION, IMAGING, AND PATIENT-REPORTED OUTCOME (PRO) SCORES, INCLUDING THE MODIFIED HARRIS HIP SCORE (MHHS), HIP OUTCOME SCORE ACTIVITIES OF DAILY LIVING (HOS-ADL) AND SPORTS-SPECIFIC (HOS-SS) SUBSCALES, AND VISUAL ANALOG SCALE (VAS) FOR PAIN. POSTOPERATIVELY, EXAMINATION AND PRO DATA WERE COLLECTED AT A MINIMUM 1 YEAR AFTER SURGERY, INCLUDING A YOGA-SPECIFIC QUESTIONNAIRE. RESULTS: A TOTAL OF 42 PATIENTS (90% FEMALE; MEAN AGE, 35 +/- 9 YEARS; MEAN BODY MASS INDEX, 23.1 +/- 3.2 KG/M(2)) WERE INCLUDED. THIRTY PATIENTS (71%) HAD TO DISCONTINUE THEIR YOGA ROUTINE PREOPERATIVELY BECAUSE OF HIP-RELATED SYMPTOMS AT A MEAN 9.5 +/- 8.2 MONTHS BEFORE SURGERY. AFTER SURGERY, 39 PATIENTS (93%) WERE ABLE TO RETURN TO YOGA AT A MEAN 5.3 +/- 2.2 MONTHS AFTER SURGERY. TWO OF THE 3 PATIENTS WHO DID NOT RETURN TO YOGA NOTED LOSS OF INTEREST AS THEIR REASON FOR STOPPING, WHILE 1 PATIENT WAS UNABLE TO RETURN BECAUSE OF PERSISTENT HIP PAIN. NINETEEN PATIENTS (45%) RETURNED TO A HIGHER LEVEL OF YOGA PRACTICE, 17 PATIENTS (40%) RETURNED TO THE SAME LEVEL, AND 3 PATIENTS (7%) RETURNED TO A LOWER LEVEL. THERE WAS NO DIFFERENCE IN THE NUMBER OF HOURS SPENT PRACTICING YOGA PER WEEK PRE- AND POSTOPERATIVELY (2.7 +/- 1.9 VS 2.5 +/- 1.3 HOURS; P = 0.44). ALL PATIENTS DEMONSTRATED SIGNIFICANT IMPROVEMENT IN ALL PROS AS WELL AS PAIN SCORES AFTER SURGERY (HOS-ADL, 67.4 +/- 18.3 TO 93.1 +/- 6.9 [ P < 0.001]; HOS-SS, 45.6 +/- 24.7 TO 81.5 +/- 18.8 [ P < 0.001]; MHHS, 62.3 +/- 11.3 TO 86.8 +/- 12.3 [ P < 0.0001]; VAS PAIN, 6.3 +/- 2.2 TO 0.90 +/- 1.1 [ P < 0.001]). CONCLUSION: PATIENTS PARTICIPATING IN YOGA RETURN TO YOGA 93% OF THE TIME AND AT A MEAN 5.3 +/- 2.2 MONTHS AFTER HIP ARTHROSCOPY FOR FAIS. CLINICAL RELEVANCE: INFORMATION REGARDING SURGICAL OUTCOMES IS CRITICAL IN COUNSELING PATIENTS, PARTICULARLY FEMALE ATHLETES, ON THEIR EXPECTATIONS WITH RESPECT TO RETURNING TO YOGA AFTER HIP ARTHROSCOPY FOR FAIS.	2018	

5 1988  28 SPECTRAL PARAMETERS OF HRV IN YOGA PRACTITIONERS, ATHLETES AND SEDENTARY MALES. PHYSICAL INACTIVITY IS AN IMPORTANT RISK FACTOR FOR CARDIOVASCULAR MORTALITY AND MORBIDITY. EXERCISE IS CONSIDERED AN ACCEPTABLE METHOD FOR IMPROVING AND MAINTAINING PHYSICAL AND EMOTIONAL HEALTH. ALTHOUGH YOGA IS HISTORICALLY A SPIRITUAL DISCIPLINE, A GROWING BODY OF EVIDENCE SUPPORTS THE BELIEF THAT YOGA BENEFITS PHYSICAL AND MENTAL HEALTH. THE OBJECTIVE OF THIS STUDY WAS TO EVALUATE HEART RATE VARIABILITY WHICH REFLECTS AUTONOMIC CONTROL OF HEART AMONG YOGA PRACTITIONERS, ATHLETES AND INDIVIDUALS WITH SEDENTARY LIFESTYLE. THE STUDY WAS CARRIED OUT IN THE DEPARTMENTS OF PHYSIOLOGY AT MAMC AGROHA, HISAR AND PT. BD SHARMA PGIMS ROHTAK, HARYANA. THE STUDY GROUP COMPRISED OF 1200 HEALTHY MALE VOLUNTEERS OF 16 TO 55 YEARS OF AGE. THE STUDY GROUP WAS DIVIDED INTO FOUR AGE GROUPS: GROUP A OF AGE 16 TO 25 YEARS; GROUP B OF AGE 26 TO 35 YEARS; GROUP C OF AGE 36 TO 45 YEARS AND GROUP D OF AGE 46 TO 55 YEARS. ALL AGE GROUPS WERE FURTHER DIVIDED INTO THREE CATEGORIES I.E ATHLETE (RUNNER), YOGA (YOGA PRACTITIONERS) AND SEDENTARY IN WHICH INDIVIDUALS WITH SEDENTARY LIFE STYLE WERE INCLUDED. THE BASAL RECORDING OF ECG IN LEAD II WAS DONE FOR 5 MINUTES. THE POLYRITE-D ECG DATA WAS USED FOR ANALYSIS OF HEART RATE VARIABILITY BY FREQUENCY DOMAIN METHOD. TWO SPECTRAL COMPONENTS WERE RECORDED NAMELY HIGH FREQUENCY (HF) COMPONENT (0.15-0.4 HZ), AN INDICATOR OF VAGAL EFFERENT ACTIVITY AND LOW FREQUENCY (LF) COMPONENT (0.04-.15 HZ), REPLICATOR OF COMPOSITE SYMPATHO-VAGAL INTERPLAY. HF COMPONENT IN NORMALIZED UNIT WAS FOUND SIGNIFICANTLY HIGH IN AGE GROUP B AND C IN YOGA PRACTITIONERS AND ATHLETES AS COMPARED TO SEDENTARY INDIVIDUALS AND IN AGE GROUP D SIGNIFICANTLY HIGH IN YOGA PRACTITIONERS AS COMPARED TO ATHLETES AND SEDENTARY INDIVIDUALS. SIGNIFICANTLY DECREASED LF/HF RATIO WAS FOUND IN AGE GROUP B AND C IN YOGA AND ATHLETE SUBJECTS AS COMPARED TO SEDENTARY INDIVIDUALS AND IN AGE GROUP D IN YOGA PRACTITIONERS AS COMPARED TO ATHLETES AND SEDENTARY INDIVIDUALS. THIS INDICATES THAT PARASYMPATHETIC ACTIVITY IS SUBSTANTIALLY GREATER IN YOGA PRACTITIONERS.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
6 1631  27 MITIGATING THE ANTECEDENTS OF SPORTS-RELATED INJURY THROUGH YOGA. CONTEXT: INJURY RISK AMONG ATHLETES IS AN EPIDEMIC. THE PSYCHOLOGICAL AND PHYSICAL LOADS IMPOSED ON ATHLETES THROUGH PSYCHOSOCIAL STRESSORS AND TRAINING REGIMENS SIGNIFICANTLY INCREASE ATHLETES' INJURY RISK. AIMS: THIS FEASIBILITY STUDY ASSESSED WHETHER A 10-WEEK YOGA INTERVENTION COULD BE IMPLEMENTED SUCCESSFULLY AND MITIGATED ANTECEDENTS OF SPORTS INJURY. METHODS: USING A PROSPECTIVE, NONEXPERIMENTAL DESIGN, 31 MALE SOCCER PLAYERS ATTENDING A COLLEGE IN THE PACIFIC NORTHWEST ENROLLED IN THE YOGA INTERVENTION. THE RECOVERY-STRESS QUESTIONNAIRE FOR ATHLETES (RESTQ-SPORT) WAS COMPLETED AT THREE TIME-POINTS BEFORE AND AFTER THE YOGA INTERVENTION. THE RESTQ-SPORT SCALES, IDENTIFIED AS STRONGEST PREDICTORS FOR INJURY, WERE HYPOTHESIZED TO BE MITIGATED THROUGH YOGA. RESULTS: TWO STRESS-RELATED SCALES WERE SIGNIFICANT IN THE HYPOTHESIZED DIRECTION: INJURY AND FATIGUE. THE GENERAL RECOVERY SCALE, GENERAL WELL-BEING, WAS SIGNIFICANT AT ONE TIME-POINT, BUT IN THE OPPOSITE DIRECTION AS HYPOTHESIZED. CONCLUSIONS: POSITIVE FINDINGS ARE DISCUSSED AND EXPLANATIONS FOR UNEXPECTED CHANGES ARE EXPLORED, ALONG WITH STUDY LIMITATIONS. RESULTS SUGGEST THAT YOGA CAN BE SUCCESSFULLY INTEGRATED INTO THE ATHLETIC PROGRAM OF SOCCER PLAYERS AND PROVISIONALLY SUPPORT THE POTENTIAL OF A YOGA INTERVENTION TO MITIGATE TWO SIGNIFICANT ANTECEDENTS OF INJURY, NAMELY, PERCEPTION OF PROPENSITY TO SUSTAIN INJURY AND GENERALIZED FATIGUE.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
7  525  25 COMPARISON OF EFFECTS OF YOGA & PHYSICAL EXERCISE IN ATHLETES. THE EFFECT OF PRANAYAMA A CONTROLLED BREATHING PRACTICE, ON EXERCISE TESTS WAS STUDIED IN ATHLETES IN TWO PHASES; SUB-MAXIMAL AND MAXIMAL EXERCISE TESTS. AT THE END OF PHASE I (ONE YEAR) BOTH THE GROUPS (CONTROL AND EXPERIMENTAL) ACHIEVED SIGNIFICANTLY HIGHER WORK RATE AND REDUCTION IN OXYGEN CONSUMPTION PER UNIT WORK. THERE WAS A SIGNIFICANT REDUCTION IN BLOOD LACTATE AND AN INCREASE IN P/L RATIO IN THE EXPERIMENTAL GROUP, AT REST. AT THE END OF PHASE II (TWO YEARS), THE OXYGEN CONSUMPTION PER UNIT WORK WAS FOUND TO BE SIGNIFICANTLY REDUCED AND THE WORK RATE SIGNIFICANTLY INCREASED IN THE EXPERIMENTAL GROUP. BLOOD LACTATE DECREASED SIGNIFICANTLY AT REST IN THE EXPERIMENTAL GROUP ONLY. PYRUVATE AND PYRUVATE-LACTATE RATIO INCREASED SIGNIFICANTLY IN BOTH THE GROUPS AFTER EXERCISE AND AT REST IN THE EXPERIMENTAL GROUP. THE RESULTS IN BOTH PHASES SHOWED THAT THE SUBJECTS WHO PRACTISED PRANAYAMA COULD ACHIEVE HIGHER WORK RATES WITH REDUCED OXYGEN CONSUMPTION PER UNIT WORK AND WITHOUT INCREASE IN BLOOD LACTATE LEVELS. THE BLOOD LACTATE LEVELS WERE SIGNIFICANTLY LOW AT REST.	1994	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
8 1359  35 IMMEDIATE EFFECTS OF OM CHANTING ON HEART RATE VARIABILITY MEASURES COMPARED BETWEEN EXPERIENCED AND INEXPERIENCED YOGA PRACTITIONERS. BACKGROUND: CHANTING "OM" IS A FORM OF MEDITATION THAT HAS NUMEROUS HEALTH BENEFITS. HOWEVER, THE NEUROPHYSIOLOGICAL MECHANISMS UNDERPINNING ITS EFFECT ARE SURPRISINGLY SCARCE. THE PRESENT STUDY AIMED TO INVESTIGATE THE EFFECT OF OM CHANTING ON AUTONOMIC MODULATION, USING HEART RATE VARIABILITY (HRV), ON EXPERIENCED YOGA PRACTITIONERS AND YOGA NAIVE PERSONS. METHODS: THIS PROSPECTIVE STUDY INCLUDED 19 YOGA PRACTITIONERS (9 FEMALES AND 10 MALES; GROUP MEAN AGE +/- STANDARD DEVIATION [SD]; 25.9 +/- 3.2 YEARS) AND 17 YOGA NAIVE PERSONS (8 FEMALES AND 9 MALES; GROUP MEAN AGE +/- SD; 24.8 +/- 3.6 YEARS) OF BOTH SEXES AND SIMILAR AGE RANGE. BOTH THE GROUPS WERE ASSESSED FOR HRV INDICES (TIME AND FREQUENCY DOMAIN MEASURES) BEFORE AND AFTER LOUD OM CHANTING FOR 5 MIN. RESULTS: BASELINE COMPARISON USING MANN-WHITNEY U TEST BETWEEN GROUPS SHOWED YOGA PRACTITIONERS HAD SIGNIFICANTLY INCREASED HIGH FREQUENCY (HF) POWER (P < 0.029) THAN NONYOGA PRACTITIONERS, SIGNIFYING A STATE OF TRANQUILITY BEFORE THE CHANTING OF OM. AFTER 5 MIN OF LOUD CHANTING OF OM, A COMPARISON BETWEEN GROUPS ASSESSED USING WILCOXON SIGNED RANKS TEST REVEALED: HF POWER, A COMPONENT OF THE PARASYMPATHETIC NERVOUS SYSTEM, WAS FURTHER AMPLIFIED WITH A SIGNIFICANTLY INCREASE (P < 0.001) IN THE YOGA PRACTITIONERS GROUP COMPARED TO NONYOGA PRACTITIONERS. FURTHERMORE, THIS INCREASE IN HF POWER WAS POSITIVELY CORRELATED WITH THE YEARS OF EXPERIENCE IN YOGA. CONCLUSION: THE PRESENT STUDY SHOWED THAT A BRIEF CHANTING OF OM (5 MIN) MIGHT ENHANCE PARASYMPATHETIC NERVOUS SYSTEM ACTIVITY, PROMOTE RELAXATION, AND PROVIDE CALMNESS. FURTHER, THIS EXPERIENCE MAY BE ACHIEVED EFFECTIVELY IN INDIVIDUALS EXPERIENCED IN YOGA THAN NONYOGA PRACTITIONERS.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
9 2760  36 YOGA PRACTITIONERS UNIQUELY ACTIVATE THE SUPERIOR PARIETAL LOBULE AND SUPRAMARGINAL GYRUS DURING EMOTION REGULATION. CHRONIC STRESS CONTRIBUTES TO BOTH MENTAL AND PHYSICAL ILLNESS. A HIGH PREVALENCE AND COST OF STRESS-RELATED ILLNESSES NORTH AMERICA WARRANTS INVESTIGATION INTO ALTERNATIVE OR COMPLEMENTARY THERAPIES WHICH MAY HELP REDUCE ADVERSE REACTIONS TO STRESSFUL STIMULI. EMOTION REGULATION IS THE PROCESS OF MONITORING AND ADJUSTING EMOTIONAL RESPONSES TO ENVIRONMENTAL STIMULI AND STRESSORS. INDIVIDUALS WHO PARTICIPATE IN PHYSICAL ACTIVITY ARE LESS LIKELY TO HAVE ADVERSE RESPONSES TO POTENTIALLY STRESSFUL SITUATIONS, POTENTIALLY DUE TO ADAPTIONS IN EMOTION REGULATION. YOGA IS A FORM OF PHYSICAL ACTIVITY INVOLVING STRETCHING EXERCISES AND MEDITATION, THAT MAY LESSEN INDIVIDUALS' LEVELS OF STRESS AND ANXIETY AND IMPROVE EMOTION REGULATION. HIGH-FREQUENCY HEART RATE VARIABILITY (HF-HRV) IS CONSIDERED A MEASURE OF PARASYMPATHETIC NERVOUS SYSTEM (PNS) ACTIVITY DURING THE EMOTION REGULATION. MEASURING HRV AND BRAIN ACTIVITY USING FUNCTIONAL MAGNETIC RESONANCE IMAGING (FMRI) OFFERS A USEFUL, NONINVASIVE APPROACH TO EVALUATING "NEUROVISCERAL" COMPONENTS OF EMOTION REGULATION. WE AIMED TO DETERMINE WHETHER YOGA PRACTITIONERS (YP) EXHIBIT DIFFERENT PATTERNS OF BRAIN ACTIVATION COMPARED TO RECREATIONAL ATHLETES (RA) WITHOUT CURRENT YOGA EXPERIENCE, WHILE VIEWING EMOTIONALLY AROUSING VISUAL STIMULI. OUR SECONDARY AIM WAS TO EXAMINE POTENTIAL DIFFERENCES ACROSS GROUPS IN HRV THROUGHOUT THE PRESENTATION OF THESE STIMULI. ANALYSIS OF FMRI DATA DURING EXPOSURE TO EMOTION-EVOKING (EE) STIMULI REVEALED THAT THE YP GROUP ACTIVATED TWO UNIQUE BRAIN AREAS, NAMELY THE SUPERIOR PARIETAL LOBULE AND THE SUPRAMARGINAL GYRUS. THESE AREAS HAVE BEEN ASSOCIATED WITH ATTENTIONAL AWARENESS AND REDUCED EGOCENTRIC BIAS, PROCESSES THAT HAVE BEEN IMPLICATED IN EMOTION REGULATION BY OTHERS. THE RA GROUP ACTIVATED THE INFERIOR MIDDLE FRONTAL CORTEX, AN AREA ASSOCIATED WITH COGNITIVE REAPPRAISAL DURING EMOTION REGULATION. THE YP GROUP ALSO DEMONSTRATED A TREND TOWARDS A HIGHER RATIO OF LOW- TO HIGH-FREQUENCY HRV COMPARED TO THE RA GROUP. THE PRESENT FINDINGS SUPPORT THE PRESENCE OF EXPERIENCE-DEPENDENT NEUROVISCERAL MECHANISMS ASSOCIATED WITH EMOTION REGULATION. INDIVIDUALS WHO PRACTICE YOGA REGULATE THEIR NEUROVISCERAL RESPONSES TO POTENTIALLY STRESSFUL EXTERNAL STIMULI IN A DIFFERENT MANNER THAN RECREATIONAL ATHLETES WHO DO NOT ENGAGE IN YOGA PRACTICE. THE PRESENT STUDY HAD A SMALL SAMPLE SIZE (RA: N = 12; YP: N = 19), WHICH SHOULD BE TAKEN INTO ACCOUNT WHEN INTERPRETING THE RESULTS.	2018	
                                                                                                                                                                                                                        
10  385  33 BENEFICIAL EFFECTS OF YOGA STRETCHING ON SALIVARY STRESS HORMONES AND PARASYMPATHETIC NERVE ACTIVITY. THIS STUDY AIMED TO DETERMINE THE EFFECT OF YOGA STRETCHING ON SALIVARY STRESS HORMONES AND CARDIAC AUTONOMIC NERVOUS SYSTEM. TO OUR KNOWLEDGE, THIS STUDY IS THE FIRST TO INVESTIGATE CHANGES IN CARDIAC AUTONOMIC NERVOUS SYSTEM AFTER YOGA STRETCHING. IN THIS CROSSOVER DESIGN STUDY, 10 ADULT MEN (AGE, 26.3 +/- 2.5 YEARS) WITHOUT YOGA EXPERIENCE PARTICIPATED IN THE REST AND YOGA TRIALS FOR 90 MIN. MEASUREMENTS WERE CARRIED OUT BEFORE (PRE), IMMEDIATELY (POST), 60 MIN, AND 120 MIN AFTER REST OR YOGA STRETCHING. SALIVA SAMPLES WERE COLLECTED BY CHEWING A STERILE COTTON BALL AT A FREQUENCY OF 60 CYCLES PER MINUTE. SALIVARY CORTISOL AND TESTOSTERONE CONCENTRATIONS WERE MEASURED USING AN ENZYME-LINKED IMMUNOSORBENT ASSAY. WITH THE SUBJECTS IN THE SITTING POSITION, HEART RATE VARIABILITY WAS MEASURED USING PULSE ANALYZER PLUS FOR 150 SECONDS. AS REGARDS RATE CHANGES, SALIVARY TESTOSTERONE LEVEL TENDED TO INCREASE (P = 0.088), TESTOSTERONE/CORTISOL RATIO SIGNIFICANTLY INCREASED (P < 0.05), AND CORTISOL LEVEL SIGNIFICANTLY DECREASED (P < 0.05) AT 120 MIN AFTER YOGA STRETCHING. THE SQUARE ROOT OF THE MEAN-SQUARED DIFFERENCES OF SUCCESSIVE NORMAL-TO-NORMAL INTERVALS AND NATURAL LOGARITHM HIGH-FREQUENCY COMPONENT, WHICH ARE INDICATORS OF PARASYMPATHETIC NERVE ACTIVITY, INCREASED AT 60 MIN (P < 0.05) AND 120 MIN (P < 0.05) IN THE YOGA TRIAL, RESPECTIVELY. IN CONCLUSION, YOGA STRETCHING CAN ENHANCE PARASYMPATHETIC NERVE ACTIVITY AND IMPROVE STRESS HORMONES. THEREFORE, YOGA STRETCHING MAY BE USEFUL TO COMPENSATE FOR PHYSICAL INACTIVITY AND INCREASE LIFE EXPECTANCY IN THE GENERAL POPULATION.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
11   58  29 A COMPARISON OF EMG OUTPUT OF FOUR LOWER EXTREMITY MUSCLES DURING SELECTED YOGA POSTURES. THE PURPOSE OF THIS STUDY WAS TO USE SURFACE ELECTROMYOGRAPHY (EMG) ANALYSIS TO EXAMINE THE MUSCLE ACTIVATION OF THE ANTERIOR TIBIALIS (TA), GASTROCNEMIUS (GA), RECTUS FEMORIS (RF) AND BICEPS FEMORIS (BF) MUSCLES DURING SEVERAL YOGA POSES: TREE POSE (VRKSASHANA), HALF MOON POSE (ARDHA CHANDRASANA) AND WARRIOR III (VIRABADRASANA) WHEN COMPARED TO A REST POSE (MOUNTAIN POSE). TEN HEALTHY FEMALES WITH MORE THAN 3 MONTHS OF CONTINUOUS YOGA EXPERIENCE WHO PRACTICED AT LEAST 1.5H PER WEEK WERE RECRUITED. EMG ACTIVITY WAS RECORDED FROM THE AFOREMENTIONED MUSCLES DURING MOUNTAIN POSE ("REST") FOR 30S, THREE TIMES. SUBJECTS THEN PERFORMED THE FOLLOWING YOGA POSES IN A RANDOMIZED SEQUENCE WHILE SURFACE EMG ACTIVITY WAS RECORDED: TREE POSE, HALF-MOON, AND WARRIOR III. EACH POSE WAS HELD FOR 20S TO 30S AND PERFORMED THREE TIMES. EMG DATA WERE BAND PASS FILTERED AND THE ROOT MEAN SQUARE (RMS) WAS OBTAINED. THE PEAK RMS OF EACH OF THE RESTING TRIALS WAS OBTAINED AND AVERAGED TO PRODUCE AN AVERAGE PEAK RESTING RMS VALUE. THE STUDY REVEALED SIGNIFICANTLY GREATER EMG ACTIVITY IN TA AND GA IN ALL THREE POSES WHEN COMPARED TO BF AND RF. BF PRODUCED GREATER EMG ACTIVITY THAN RF IN WARRIOR III. IN CONCLUSION, SINGLE LIMB YOGA POSES REQUIRE INCREASED USE OF THE ANKLE MUSCULATURE WHEN COMPARED TO THIGH MUSCULATURE.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
12 1451  32 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
13 2328  24 TRUNK AND HIP MUSCLE ACTIVATION DURING YOGA POSES: DO SEX-DIFFERENCES EXIST? OBJECTIVE: TO COMPARE CORE ACTIVATION DURING YOGA BETWEEN MALES AND FEMALES. METHODS: SURFACE ELECTROMYOGRAPHY WAS USED TO QUANTIFY RECTUS ABDOMINIS (RA), ABDOMINAL OBLIQUES (AO), LUMBAR EXTENSORS (LE), AND GLUTEUS MAXIMUS (GMX) ACTIVATION DURING FOUR YOGA POSES. DATA WERE EXPRESSED AS 100% OF A MAXIMUM VOLUNTARY ISOMETRIC CONTRACTION. MIXED-MODEL 2X2 ANALYSES OF VARIANCE WITH REPEATED MEASURES WERE USED TO DETERMINE BETWEEN-SEX DIFFERENCES IN MUSCLE ACTIVITY. RESULTS: FEMALES GENERATED GREATER RA ACTIVITY THAN MALES DURING THE HIGH PLANK (P<0.0001) AND DOMINANT-SIDE WARRIOR 1 (P=0.017). THEY GENERATED GREATER AO (P<0.0001) AND GMX (P=0.004) ACTIVITY DURING THE HIGH PLANK (P<0.0001). NO BETWEEN-SEX EMG ACTIVITY DIFFERENCES EXISTED FOR THE CHAIR AND UPWARD FACING DOG. CONCLUSION: FINDINGS HAVE PROVIDED PRELIMINARY EVIDENCE FOR BETWEEN-SEX DIFFERENCES IN MUSCLE ACTIVATION DURING YOGA POSES. CLINICIANS SHOULD CONSIDER SUCH DIFFERENCES WHEN PRESCRIBING YOGA TO IMPROVE MUSCLE STRENGTH AND ENDURANCE.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
14 2329  25 TRUNK AND HIP MUSCLE ACTIVATION DURING YOGA POSES: IMPLICATIONS FOR PHYSICAL THERAPY PRACTICE. OBJECTIVE: TO DETERMINE AND COMPARE ACTIVATION OF CORE MUSCLES DURING YOGA TO TRADITIONAL BACK EXERCISES. METHODS: SURFACE ELECTROMYOGRAPHY WAS USED TO QUANTIFY ACTIVATION OF THE RECTUS ABDOMINIS (RA), ABDOMINAL OBLIQUES (AO), LUMBAR EXTENSORS (LE), AND GLUTEUS MAXIMUS (GMX) DURING FOUR YOGA POSES. DATA WERE EXPRESSED AS 100% OF A MAXIMUM VOLUNTARY ISOMETRIC CONTRACTION. SEPARATE ANALYSES OF VARIANCE WITH REPEATED MEASURES WERE USED TO COMPARE MUSCLE ACTIVITY ACROSS EACH EXERCISE. RESULTS: SUBJECTS GENERATED GREATER RA (P < 0.0001) AND AO (P < 0.0001) ACTIVITY DURING THE PLANK. THEY GENERATED GREATER AO ACTIVITY (P < 0.0001) DURING THE UPWARD-FACING DOG THAN THE CHAIR AND DOMINANT-SIDE WARRIOR 1. LE ACTIVITY WAS GREATEST (P < 0.0001) DURING THE CHAIR. GMX ACTIVITY WAS SIMILAR (P = 0.09) DURING ALL EXERCISES. CONCLUSION: YOGA POSES MAY HELP IMPROVE CORE ENDURANCE AND STRENGTH. CLINICIANS MAY USE THESE DATA WHEN DEVELOPING AND IMPLEMENTING AN EVIDENCE-BASED CORE EXERCISE PROGRAM FOR INDIVIDUALS WHO PREFER A YOGA TREATMENT STRATEGY.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
15 1464  30 INFLUENCES OF A YOGA INTERVENTION ON THE POSTURAL SKILLS OF THE ITALIAN SHORT TRACK SPEED SKATING TEAM. INTRODUCTION: IN PREPARATION FOR A SHORT TRACK SPEED SKATING SEASON, EIGHT MEN AND SEVEN WOMEN WERE GIVEN YOGA SESSIONS DURING AN 8-WEEK HIGH VOLUME TRAINING CYCLE. THE SESSIONS WERE PLANNED ACCORDING TO THE POSTURAL ASPECTS SPECIFIC TO SHORT TRACK SPEED SKATING TECHNICAL REQUIREMENTS. THREE SPECIFIC GOALS WERE SELECTED FOR THE INTERVENTION: 1) TO OBSERVE WHETHER THE PRACTICE OF YOGA AS POSTURAL TRAINING COULD IMPROVE THE EFFICIENCY AND THE ATHLETE'S REPERTOIRE ALONG THE MUSCULAR SYNERGIES SOLICITED IN THE SHORT TRACK SPEED SKATING SPECIFIC TECHNIQUE; 2) TO ENHANCE AND DIVERSIFY THE MOTOR TIME-ON-TASK OF ATHLETES WITHOUT CHANGING THE PRESCRIPTION OF OTHER TRAINING STIMULUS; AND 3) TO LOWER THE RISK OF INJURY DURING PERIODS WITH HIGH VOLUMES OF TRAINING. METHODS: A TOTAL OF 36 SESSIONS OF YOGA WERE GIVEN. THREE POSTURAL TESTS WERE ADMINISTERED BEFORE AND AFTER THE INTERVENTION WITH 14 ANGLES ANALYZED. NON-PARAMETRIC WILCOXON TEST WAS USED TO COMPARE ANGLES' VARIATIONS. RESULTS: THE 36 YOGA SESSIONS TOTALIZED 986 MINUTES OF MOTOR TIME-ON-TASK, REGISTERING A PROPORTION OF 30% OF THE GLOBAL MOTOR TIME-ON-TASK OF THE TRAINING CYCLE. IMPROVEMENTS WERE FOUND IN ELEVEN OF THE 14 ANGLES MEASURED WHEN COMPARING PRE- AND POST-POSTURAL TESTS (P-VALUE FROM 0.01 TO 0.005). DURING THE 8 WEEKS, EXCEPTING TRAUMATIC INJURIES DUE TO SHORT TRACK SPEED SKATING ACCIDENTS, NO SKATERS SUFFERED INJURIES LINKED TO THE HIGH VOLUME OF TRAINING. FOLLOWING THE INTERVENTION, COACHES NOTICED, FOLLOWING THEIR ON-ICE FEEDBACKS, AN ADJUSTMENT IN THE EFFICIENCY OF THE SKATING TECHNIQUE, IN PARTICULAR REGARDING HIP DISSOCIATION. CONCLUSION: THESE RESULTS SUGGEST THAT YOGA COULD BE INSERTED INTO OUT-OF-SEASON TRAINING CYCLES, EVEN IN A HIGH VOLUME TRAINING CYCLE. PLANNED WITH THE DECISION TRAINING TOOLS, IT ALLOWS ATHLETES TO DIVERSIFY THEIR MOTOR TIME-ON-TASK BY INTEGRATING A NEW FUNCTIONAL RANGE OF GENERIC MOVEMENTS WITH THE SOLICITATION OF NEUROMUSCULAR SYNERGIES RELATED TO THE SPECIFICITY OF THEIR SPORT.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
16 1610  35 METABOLIC AND VENTILATORY CHANGES DURING AND AFTER HIGH-FREQUENCY YOGA BREATHING. BACKGROUND PRACTICING HIGH-FREQUENCY YOGA BREATHING (HFYB) INDUCED A HYPERMETABOLIC STATE IN A SINGLE SUBJECT DURING THE PRACTICE BUT THE EFFECT HAS NOT BEEN STUDIED IN MULTIPLE PRACTITIONERS. MATERIAL AND METHODS HEALTHY MALE VOLUNTEERS (N=47, GROUP MEAN AGE +/- S.D., 23.2 +/- 4.1 YEARS) WERE RECRUITED AS AN EXPERIMENTAL GROUP AND ANOTHER TWENTY VOLUNTEERS WERE RECRUITED AS A CONTROL GROUP. THE EXPERIMENTAL GROUP PRACTICED EITHER HFYB (BREATH RATE 1.0 HZ) OR BREATH AWARENESS (BAW) ON TWO SEPARATE DAYS. THE SEQUENCE WAS REVERSED FOR ALTERNATE PARTICIPANTS. THE CONTROL GROUP WAS ASSESSED UNDER SIMILAR CONDITIONS WHILE SITTING AT EASE. THE BREATH RATE (RR), TIDAL VOLUME (VT), VENTILATION (VE), VO2, VCO2, ARTERIAL PCO2 AND ENERGY EXPENDITURE (EE KCAL/DAY) WERE ASSESSED FOR 35 MINUTES USING AN OPEN CIRCUIT OXYGEN CONSUMPTION ANALYZER. THE ASSESSMENT PERIOD WAS DIVIDED INTO BEFORE, DURING AND AFTER CONDITIONS. REPEATED MEASURES ANALYSES OF VARIANCE (ANOVA) WERE USED TO COMPARE DATA RECORDED DURING AND AFTER THE TWO PRACTICES WITH DATA RECORDED BEFORE. BEFORE-AFTER COMPARISONS IN THE CONTROL GROUP WERE WITH PAIRED T-TESTS. RESULTS THE MOST RELEVANT SIGNIFICANT CHANGES WERE INCREASES IN VE, VO2, VCO2 AND EE DURING HFYB, WHILE THE SAME VARIABLES DECREASED DURING THE CONTROL PERIOD. HOWEVER AFTER HFYB THERE WAS NO CHANGE IN VO2 OR EE, ALTHOUGH VE DECREASED AS IT DID AFTER THE CONTROL PERIOD. CONCLUSIONS HFYB INDUCES A HYPERMETABOLIC STATE FOR THE DURATION OF THE PRACTICE WHICH RETURNS TO BASELINE AFTER HFYB SUGGESTING A POSSIBLE APPLICATION FOR HFYB IN HYPOMETABOLIC STATES.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
17  994  32 EFFECTS OF HIGH-FREQUENCY YOGA BREATHING CALLED KAPALABHATI COMPARED WITH BREATH AWARENESS ON THE DEGREE OF OPTICAL ILLUSION PERCEIVED. PRIOR RESEARCH HAS SHOWN THAT METHODS OF MEDITATION, BREATH CONTROL, AND DIFFERENT KINDS OF YOGA BREATHING AFFECT ATTENTION AND VISUAL PERCEPTION, INCLUDING DECREASING THE SIZE OF CERTAIN OPTICAL ILLUSIONS. EVALUATING RELATIONSHIPS SHEDS LIGHT ON THE PERCEPTUAL AND COGNITIVE CHANGES INDUCED BY YOGA AND RELATED METHODS, AND THE LOCUS OF THE EFFECTS. IN THE PRESENT STUDY, THE DEGREE OF OPTICAL ILLUSION WAS ASSESSED USING MULLER-LYER STIMULI BEFORE AND IMMEDIATELY AFTER TWO DIFFERENT KINDS OF PRACTICE, A HIGH FREQUENCY YOGA BREATHING CALLED KAPALABHATI, AND BREATH AWARENESS. A NONYOGA, CONTROL SESSION TESTED FOR PRACTICE EFFECTS. THIRTY PARTICIPANTS (WITH GROUP M AGE = 26.9 YR., SD = 5.7) PRACTICED THE TWO TECHNIQUES FOR 18 MIN. ON TWO SEPARATE DAYS. THE CONTROL GROUP HAD 15 NONYOGA PRACTITIONERS ASSESSED BEFORE AND AFTER 18 MIN. IN WHICH THEY DID NOT PERFORM ANY SPECIFIC ACTIVITY BUT WERE SEATED AND RELAXED. AFTER BOTH KAPALABHATI AND BREATH AWARENESS THERE WAS A SIGNIFICANT DECREASE IN THE DEGREE OF OPTICAL ILLUSION. THE POSSIBILITY THAT THIS WAS DUE TO A PRACTICE OR REPETITION EFFECT WAS RULED OUT WHEN 15 NONYOGA PRACTITIONERS SHOWED NO CHANGE IN THE DEGREE OF ILLUSION WHEN RETESTED AFTER 18 MIN. THE CHANGES WERE INTERPRETED AS DUE TO CHANGES IN PERCEPTION RELATED TO THE WAY THE STIMULI WERE JUDGED.	2011	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
18 1426  33 IMPROVEMENT OF GLUTATHIONE AND TOTAL ANTIOXIDANT STATUS WITH YOGA. OBJECTIVE: SEVERAL STUDIES SUGGEST THAT YOGA CAN DECREASE OXIDATIVE STRESS. HOWEVER REPORTS ARE SCANTY REGARDING WHETHER YOGA TRAINING CAN IMPROVE THE GLUTATHIONE LEVEL OF INDIVIDUAL. THIS STUDY IS DESIGNED TO APPRAISE THE ROLE OF YOGA IN MAINTAINING GLUTATHIONE (REDUCED AND OXIDIZED) LEVELS AND ANTIOXIDANT STATUS. STUDY DESIGN: THIS STUDY WAS CONDUCTED ON HEALTHY MALE VOLUNTEERS FROM THE INDIAN NAVY, WHO WERE DIVIDED INTO TWO GROUPS--A YOGA (N = 30) GROUP AND A CONTROL (N = 21) GROUP. THE YOGA GROUP WAS TRAINED IN YOGA FOR 6 MONTHS. THE YOGA SCHEDULE CONSISTED OF PRAYERS, ASANA, PRANAYAMA, AND MEDITATION. THE CONTROL GROUP PRACTICED ROUTINE PHYSICAL TRAINING EXERCISE FOR 6 MONTHS. BLOOD SAMPLES WERE COLLECTED WHEN THE VOLUNTEERS WERE IN FASTING CONDITION BEFORE AND AFTER COMPLETION OF 6-MONTH TRAINING PERIOD. REDUCED AND OXIDIZED GLUTATHIONE, GLUTATHIONE REDUCTASE ACTIVITY AND TOTAL ANTIOXIDANT STATUS (TAS) WERE ESTIMATED. RESULTS: REDUCED GLUTATHIONE LEVEL INCREASED SIGNIFICANTLY (P < 0.05) IN THE YOGA GROUP AFTER COMPLETION OF TRAINING. GLUTATHIONE REDUCTASE ACTIVITY INCREASED SIGNIFICANTLY IN THE CONTROL GROUP (P < 0.05). TAS INCREASED SIGNIFICANTLY (P < 0.001) IN THE YOGA GROUP AND DECREASED SIGNIFICANTLY (P < 0.001) IN THE CONTROL GROUP. CONCLUSIONS: REGULAR PRACTICE OF YOGA CAN MAINTAIN OR IMPROVE ANTIOXIDANT LEVEL OF THE BODY. THE CLINICAL RELEVANCE IS THAT YOGA PRACTICE CAN BE USED TO MAINTAIN THE ANTIOXIDANT DEFENSE SYSTEM UNDER STRESSFUL CONDITIONS OF TRAINING AS OBSERVED IN THE CASE OF SOLDIERS AND ATHLETES.	2007	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
19 2778  23 YOGA STRETCHING FOR IMPROVING SALIVARY IMMUNE FUNCTION AND MENTAL STRESS IN MIDDLE-AGED AND OLDER ADULTS. PROTECTION AGAINST AGE-RELATED IMMUNE SUPPRESSION IS IMPORTANT IN ELDERLY INDIVIDUALS. THIS STUDY DETERMINED THE EFFECT OF YOGA ON MUCOSAL IMMUNE FUNCTION AND MENTAL STRESS. SALIVA SAMPLES WERE COLLECTED FROM 23 ADULT WOMEN (AGE: 60.4 +/- 10.4 YEARS) BEFORE AND AFTER 90 MINUTES OF YOGA STRETCHING OR REST TO MEASURE SECRETORY IMMUNOGLOBULIN A (SIGA), CORTISOL, AND TESTOSTERONE. THE SIGA CONCENTRATION AND SECRETION RATE WERE SIGNIFICANTLY HIGHER AFTER YOGA THAN BEFORE (P < .05). THE CORTISOL CONCENTRATION AND SECRETION RATE WERE LOWER AND TESTOSTERONE SECRETION RATE HIGHER AFTER YOGA (P < .05). YOGA STRETCHING CAN REDUCE STRESS AND ENHANCE MUCOSAL IMMUNE FUNCTION IN ELDERLY WOMEN.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
20  448  31 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