1 2258 189 THE PHYSIOLOGICAL RESPONSES TO BIKRAM YOGA IN NOVICE AND EXPERIENCED PRACTITIONERS. CONTEXT: BIKRAM YOGA HAS GAINED A LARGE FOLLOWING, POSSIBLY BECAUSE OF WIDESPREAD CLAIMS BOASTING ENERGY EXPENDITURE OF UP TO 1000 CALORIES PER SESSION. HOWEVER, THESE CLAIMS ARE UNFOUNDED BECAUSE NO SCIENTIFIC STUDY HAS INVESTIGATED THE METABOLIC RESPONSE TO A COMPLETE, STANDARDIZED BIKRAM YOGA CLASS. OBJECTIVES: THIS STUDY INTENDS TO DETERMINE ENERGY EXPENDITURE, HEART RATE, AND SWEAT RATE IN NOVICE AND EXPERIENCED PRACTITIONERS FROM A STANDARDIZED BIKRAM YOGA CLASS. SETTING: DATA WERE COLLECTED IN THE ENVIRONMENTAL CHAMBER OF THE EXERCISE PHYSIOLOGY LABORATORY AT SAN DIEGO STATE UNIVERSITY IN CALIFORNIA, USA. PARTICIPANTS: MALE (N = 5) AND FEMALE (N = 19) PARTICIPANTS BETWEEN THE AGES OF 18 AND 57 Y WERE RECRUITED THROUGH FLYERS IN YOGA STUDIOS THROUGHOUT SAN DIEGO. PARTICIPANTS WERE CLASSIFIED AS EXPERIENCED OR NOVICE PRACTITIONERS, HAVING COMPLETED >/=20 OR <20 SESSIONS, RESPECTIVELY. INTERVENTIONS: PARTICIPANTS WERE GUIDED THROUGH A STANDARDIZED 90-MIN YOGA CLASS PERFORMED IN A HOT ENVIRONMENT USING BIKRAM'S STANDARD BEGINNING DIALOGUE, WHILE EXPIRED GAS WAS COLLECTED AND HEART RATE WAS RECORDED. OUTCOME MEASURES: ENERGY EXPENDITURE, CALCULATED VIA OXYGEN UPTAKE, AND HEART RATE WERE DETERMINED FOR EACH POSTURE AND TRANSITION PERIOD. IN ADDITION, SWEAT RATE AND CORE TEMPERATURE WERE RECORDED FOR EACH PARTICIPANT. RESULTS: MEAN (+/-SD) RELATIVE VO2 FOR THE ENTIRE 90-MIN SESSION WAS 9.5 +/- 1.9 ML X KG-1 X MIN-1, RANGING FROM 6.0 TO 12.9 ML X KG-1 X MIN-1. MEAN ABSOLUTE ENERGY EXPENDITURE WAS 286 +/- 72 KCALS, RANGING FROM 179 TO 478 KCALS. INDEPENDENT SAMPLE T TESTS REVEALED SIGNIFICANT DIFFERENCES (P < .05) IN RELATIVE ENERGY EXPENDITURE, HEART RATE, ENDING CORE TEMPERATURE, AND SWEAT RATE BETWEEN EXPERIENCE LEVELS. MEAN RELATIVE ENERGY EXPENDITURE WAS 3.7 +/- 0.5 KCAL/KG IN NOVICE PRACTITIONERS AND 4.7 +/- 0.8 KCAL/KG IN EXPERIENCED PRACTITIONERS. PERCENTAGE OF PREDICTED MAXIMUM HEART RATE AND SWEAT RATE WERE 72.3% +/- 10.6% AND 0.6 +/- 0.2 KG/H IN NOVICE PRACTITIONERS AND 86.4% +/- 5.2% AND 1.1 +/- 0.5 KG/H IN EXPERIENCED PARTICIPANTS. ALL POSTURES WERE CLASSIFIED AS LIGHT-TO-MODERATE INTENSITY ACCORDING TO THE AMERICAN COLLEGE OF SPORTS MEDICINE (ACSM) STANDARDS. CONCLUSIONS: BIKRAM YOGA MEETS REQUIREMENTS FOR EXERCISE OF LIGHT-TO-MODERATE INTENSITY AND, THEORETICALLY, COULD BE USED FOR WEIGHT MAINTENANCE OR WEIGHT LOSS IF PRACTICED SEVERAL TIMES PER WEEK.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
2 1196  28 EXAMINING THE ENERGY COST AND INTENSITY LEVEL OF PRENATAL YOGA. CONTEXT: A POPULAR FORM OF PREGNANCY PHYSICAL ACTIVITY (PA) IS PRENATAL YOGA. HOWEVER, LITTLE IS KNOWN ABOUT THE INTENSITY AND ENERGY COST OF THIS PRACTICE. AIMS: TO EXAMINE THE ENERGY COST AND INTENSITY LEVEL OF PRENATAL YOGA. METHODS: PREGNANT WOMEN IN A PRENATAL YOGA CLASS (N = 19) WORE A SENSE WEAR ARMBAND DURING ELEVEN 60 MIN CLASSES EACH, AND SELF-REPORTED DEMOGRAPHIC VARIABLES, HEIGHT AND WEIGHT, PREPREGNANCY WEIGHT, AND PA BEHAVIORS AND BELIEFS. SENSE WEAR ARMBAND DATA INCLUDED KILOCALORIES, METABOLIC EQUIVALENT (MET) VALUES, AND TIME SPENT IN VARIOUS INTENSITIES. DESCRIPTIVE STATISTICS AND FREQUENCIES WERE UTILIZED TO DESCRIBE ENERGY EXPENDITURE AND INTENSITY. RESULTS: ENERGY EXPENDITURE AVERAGED 109 +/- 8 KCALS, AND THE AVERAGE MET VALUE WAS 1.5 +/- 0.02. ON AVERAGE, 93% AND 7% OF CLASSES WERE SEDENTARY AND MODERATE INTENSITY PA, RESPECTIVELY. CONCLUSIONS: TIME SPENT IN A PRENATAL YOGA CLASS WAS CONSIDERED TO BE PRIMARILY A SEDENTARY ACTIVITY. FUTURE RESEARCH SHOULD UTILIZE LARGER SAMPLES, PRACTICE TYPE, AND SKILL LEVEL TO INCREASE GENERALIZABILITY.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
3  642  51 DOES PRACTICING HATHA YOGA SATISFY RECOMMENDATIONS FOR INTENSITY OF PHYSICAL ACTIVITY WHICH IMPROVES AND MAINTAINS HEALTH AND CARDIOVASCULAR FITNESS? BACKGROUND: LITTLE IS KNOWN ABOUT THE METABOLIC AND HEART RATE RESPONSES TO A TYPICAL HATHA YOGA SESSION. THE PURPOSES OF THIS STUDY WERE 1) TO DETERMINE WHETHER A TYPICAL YOGA PRACTICE USING VARIOUS POSTURES MEETS THE CURRENT RECOMMENDATIONS FOR LEVELS OF PHYSICAL ACTIVITY REQUIRED TO IMPROVE AND MAINTAIN HEALTH AND CARDIOVASCULAR FITNESS; 2) TO DETERMINE THE RELIABILITY OF METABOLIC COSTS OF YOGA ACROSS SESSIONS; 3) TO COMPARE THE METABOLIC COSTS OF YOGA PRACTICE TO THOSE OF TREADMILL WALKING. METHODS: IN THIS OBSERVATIONAL STUDY, 20 INTERMEDIATE-TO-ADVANCED LEVEL YOGA PRACTITIONERS, AGE 31.4 +/- 8.3 YEARS, PERFORMED AN EXERCISE ROUTINE INSIDE A HUMAN RESPIRATORY CHAMBER (INDIRECT CALORIMETER) WHILE WEARING HEART RATE MONITORS. THE EXERCISE ROUTINE CONSISTED OF 30 MINUTES OF SITTING, 56 MINUTES OF BEGINNER-LEVEL HATHA YOGA ADMINISTERED BY VIDEO, AND 10 MINUTES OF TREADMILL WALKING AT 3.2 AND 4.8 KPH EACH. MEASURES WERE MEAN OXYGEN CONSUMPTION (VO2), HEART RATE (HR), PERCENTAGE PREDICTED MAXIMAL HEART RATE (%MHR), METABOLIC EQUIVALENTS (METS), AND ENERGY EXPENDITURE (KCAL). SEVEN SUBJECTS REPEATED THE PROTOCOL SO THAT MEASUREMENT RELIABILITY COULD BE ESTABLISHED. RESULTS: MEAN VALUES ACROSS THE ENTIRE YOGA SESSION FOR VO2, HR, %MHR, METS, AND ENERGY/MIN WERE 0.6 L/KG/MIN; 93.2 BEATS/MIN; 49.4%; 2.5; AND 3.2 KCAL/MIN; RESPECTIVELY. RESULTS OF THE ICCS (2,1) FOR MEAN VALUES ACROSS THE ENTIRE YOGA SESSION FOR KCAL, METS, AND %MHR WERE 0.979 AND 0.973, AND 0.865, RESPECTIVELY. CONCLUSION: METABOLIC COSTS OF YOGA AVERAGED ACROSS THE ENTIRE SESSION REPRESENT LOW LEVELS OF PHYSICAL ACTIVITY, ARE SIMILAR TO WALKING ON A TREADMILL AT 3.2 KPH, AND DO NOT MEET RECOMMENDATIONS FOR LEVELS OF PHYSICAL ACTIVITY FOR IMPROVING OR MAINTAINING HEALTH OR CARDIOVASCULAR FITNESS. YOGA PRACTICE INCORPORATING SUN SALUTATION POSTURES EXCEEDING THE MINIMUM BOUT OF 10 MINUTES MAY CONTRIBUTE SOME PORTION OF SUFFICIENTLY INTENSE PHYSICAL ACTIVITY TO IMPROVE CARDIO-RESPIRATORY FITNESS IN UNFIT OR SEDENTARY INDIVIDUALS. THE MEASUREMENT OF ENERGY EXPENDITURE ACROSS YOGA SESSIONS IS HIGHLY RELIABLE.	2007	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
4  404  31 BIKRAM YOGA TRAINING AND PHYSICAL FITNESS IN HEALTHY YOUNG ADULTS. THERE HAS BEEN RELATIVELY LITTLE LONGITUDINAL CONTROLLED INVESTIGATION OF THE EFFECTS OF YOGA ON GENERAL PHYSICAL FITNESS, DESPITE THE WIDESPREAD PARTICIPATION IN THIS FORM OF EXERCISE. THE PURPOSE OF THIS EXPLORATORY STUDY WAS TO EXAMINE THE EFFECT OF SHORT-TERM BIKRAM YOGA TRAINING ON GENERAL PHYSICAL FITNESS. YOUNG HEALTHY ADULTS WERE RANDOMIZED TO YOGA TRAINING (N = 10, 29 +/- 6 YEARS, 24 SESSIONS IN 8 WEEKS) OR A CONTROL GROUP (N = 11, 26 +/- 7 YEARS). EACH YOGA TRAINING SESSION CONSISTED OF 90-MINUTE STANDARDIZED SUPERVISED POSTURES PERFORMED IN A HEATED AND HUMIDIFIED STUDIO. ISOMETRIC DEADLIFT STRENGTH, HANDGRIP STRENGTH, LOWER BACK/HAMSTRING AND SHOULDER FLEXIBILITY, RESTING HEART RATE AND BLOOD PRESSURE, MAXIMAL OXYGEN CONSUMPTION (TREADMILL), AND LEAN AND FAT MASS (DUAL-ENERGY X-RAY ABSORPTIOMETRY) WERE MEASURED BEFORE AND AFTER TRAINING. YOGA SUBJECTS EXHIBITED INCREASED DEADLIFT STRENGTH, SUBSTANTIALLY INCREASED LOWER BACK/HAMSTRING FLEXIBILITY, INCREASED SHOULDER FLEXIBILITY, AND MODESTLY DECREASED BODY FAT COMPARED WITH CONTROL GROUP. THERE WERE NO CHANGES IN HANDGRIP STRENGTH, CARDIOVASCULAR MEASURES, OR MAXIMAL AEROBIC FITNESS. IN SUMMARY, THIS SHORT-TERM YOGA TRAINING PROTOCOL PRODUCED BENEFICIAL CHANGES IN MUSCULOSKELETAL FITNESS THAT WERE SPECIFIC TO THE TRAINING STIMULUS.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
5 2751  40 YOGA PRACTICE IS ASSOCIATED WITH ATTENUATED WEIGHT GAIN IN HEALTHY, MIDDLE-AGED MEN AND WOMEN. BACKGROUND: YOGA IS PROMOTED OR WEIGHT MAINTENANCE, BUT THERE IS LITTLE EVIDENCE OF ITS EFFICACY. OBJECTIVE: TO EXAMINE WHETHER YOGA PRACTICE IS ASSOCIATED WITH LOWER MEAN 10-YEAR WEIGHT GAIN AFTER AGE 45. PARTICIPANTS: PARTICIPANTS INCLUDED 15,550 ADULTS, AGED 53 TO 57 YEARS, RECRUITED TO THE VITAMIN AND LIFESTYLE (VITAL) COHORT STUDY BETWEEN 2000 AND 2002. MEASUREMENTS: PHYSICAL ACTIVITY (INCLUDING YOGA) DURING THE PAST 10 YEARS, DIET, HEIGHT, AND WEIGHT AT RECRUITMENT AND AT AGES 30 AND 45. ALL MEASURES WERE BASED ON SELF-REPORTING, AND PAST WEIGHT WAS RETROSPECTIVELY ASCERTAINED. METHODS: MULTIPLE REGRESSION ANALYSES WERE USED TO EXAMINED COVARIATE-ADJUSTED ASSOCIATIONS BETWEEN YOGA PRACTICE AND WEIGHT CHANGE FROM AGE 45 TO RECRUITMENT, AND POLYCHOTOMOUS LOGISTIC REGRESSION WAS USED TO EXAMINE ASSOCIATIONS OF YOGA PRACTICE WITH THE RELATIVE ODDS OF WEIGHT MAINTENANCE (WITHIN 5%) AND WEIGHT LOSS (> 5%) COMPARED TO WEIGHT GAIN. RESULTS: YOGA PRACTICE FOR FOUR OR MORE YEARS WAS ASSOCIATED WITH A 3.1-LB LOWER WEIGHT GAIN AMONG NORMAL WEIGHT (BMI < 25) PARTICIPANTS [9.5 LBS VERSUS 12.6 IBS] AND AN 18.5-LB LOWER WEIGHT GAIN AMONG OVERWEIGHT PARTICIPANTS [-5.0 LBS VERSUS 13.5 IBS] (BOTH P FOR TREND <.001). AMONG OVERWEIGHT INDIVIDUALS, 4+ YEARS OF YOGA PRACTICE WAS ASSOCIATED WITH A RELATIVE ODDS OF 1.85 (95% CONFIDENCE INTERVAL [CI] 0.63-5.42) FOR WEIGHT MAINTENANCE (WITHIN 5%) AND 3.88 (95% CL 1.30-9.88) FOR WEIGHT LOSS (> 5%) COMPARED TO WEIGHT GAIN (P FOR TREND .026 AND .003, RESPECTIVELY). CONCLUSIONS: REGULAR YOGA PRACTICE WAS ASSOCIATED WITH ATTENUATED WEIGHT GAIN, MOST STRONGLY AMONG INDIVIDUALS WHO WERE OVERWEIGHT. ALTHOUGH CAUSAL INFERENCE FROM THIS OBSERVATIONAL STUDY IS NOT POSSIBLE, RESULTS ARE CONSISTENT WITH THE HYPOTHESIS THAT REGULAR YOGA PRACTICE CAN BENEFIT INDIVIDUALS WHO WISH TO MAINTAIN OR LOSE WEIGHT.	2005	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
6  436  29 CARDIORESPIRATORY AND METABOLIC CHANGES DURING YOGA SESSIONS: THE EFFECTS OF RESPIRATORY EXERCISES AND MEDITATION PRACTICES. THE NOVELTY OF THIS STUDY WAS TO INVESTIGATE THE CHANGES IN CARDIORESPIRATORY AND METABOLIC INTENSITY BROUGHT ABOUT BY THE PRACTICE OF PRANAYAMAS (BREATHING EXERCISES OF YOGA) AND MEDITATION DURING THE SAME HATHA-YOGA SESSION. THE TECHNIQUE APPLIED WAS THE ONE ADVOCATED BY THE HATHA-YOGA SYSTEM. NINE YOGA INSTRUCTORS-FIVE FEMALES AND FOUR MALES, MEAN AGE OF 44+/-11, 6, WERE SUBJECTED TO ANALYSIS OF THE GASES EXPIRED DURING THREE DISTINCT PERIODS OF 30 MIN: REST, RESPIRATORY EXERCISES AND MEDITATIVE PRACTICE. A METABOLIC OPEN CIRCUIT COMPUTERIZED SYSTEM WAS APPLIED (VO2000, MEDGRAPHICS-USA). THE OXYGEN UPTAKE (VO(2)) AND THE CARBON DIOXIDE OUTPUT (VCO(2)) WERE STATISTICALLY DIFFERENT (P <OR= 0.05) DURING MEDITATION AND PRANAYAMA PRACTICES WHEN COMPARED WITH REST. THE HEART RATE ALSO SUFFERED RELEVANT REDUCTIONS WHEN RESULTS AT REST WERE COMPARED WITH THOSE DURING MEDITATION. A SMALLER PROPORTION OF LIPIDS WAS METABOLIZED DURING MEDITATION PRACTICE COMPARED WITH REST. THE RESULTS SUGGEST THAT THE MEDITATION USED IN THIS STUDY REDUCES THE METABOLIC RATE WHEREAS THE SPECIFIC PRANAYAMA TECHNIQUE IN THIS STUDY INCREASES IT WHEN COMPARED WITH THE REST STATE.	2008	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
7  341  51 ARTERIAL BLOOD PRESSURE AND CARDIOVASCULAR RESPONSES TO YOGA PRACTICE. CONTEXT: YOGA IS QUALITATIVELY DIFFERENT FROM ANY OTHER MODE OF PHYSICAL ACTIVITY IN THAT IT CONSISTS OF A UNIQUE COMBINATION OF ISOMETRIC MUSCULAR CONTRACTIONS, STRETCHING EXERCISES, RELAXATION TECHNIQUES, AND BREATHING EXERCISES. IN PARTICULAR, YOGA POSTURES CONSIST OF SYSTEMIC ISOMETRIC CONTRACTIONS THAT ARE KNOWN TO ELICIT MARKED INCREASES IN MEAN BLOOD PRESSURE THAT ARE NOT OBSERVED DURING DYNAMIC EXERCISE. STRETCHING CAN ALSO INDUCE INCREASES IN BLOOD PRESSURE AND SYMPATHETIC NERVE ACTIVITY IN THE MUSCLES. CURRENTLY, NOT MUCH IS KNOWN ABOUT CHANGES IN BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES TO YOGA PRACTICE. OBJECTIVE: THE STUDY INTENDED TO DETERMINE THE ACUTE EFFECTS OF ONE SESSION OF HATHA YOGA PRACTICE ON BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES. TO GAIN INSIGHT INTO THE LONG-TERM EFFECTS OF YOGA PRACTICE, BOTH NOVICE (N = 19) AND ADVANCED (N = 18) YOGA PRACTITIONERS WERE STUDIED. DESIGN: THE TWO GROUPS WERE MATCHED FOR AGE, GENDER, BMI, AND BLOOD PRESSURE. SETTING: THE SETTING WAS A RESEARCH LABORATORY AT A UNIVERSITY. PARTICIPANTS: THIRTY-SIX APPARENTLY HEALTHY, NONOBESE, SEDENTARY, OR RECREATIONALLY ACTIVE INDIVIDUALS FROM THE COMMUNITY PARTICIPATED IN THE STUDY. INTERVENTION THE INTERVENTION COMPRISED ONE SESSION OF YOGA PRACTICE, IN WHICH PARTICIPANTS FOLLOWED A CUSTOM MADE INSTRUCTIONAL VIDEO PROVIDING A YOGA ROUTINE THAT CONSISTED OF A SERIES OF 23 HATHA-BASED YOGA POSTURES. OUTCOME MEASURES: PRIOR TO ARRIVING AT THE LABORATORY, EACH PARTICIPANT COMPLETED A RESEARCH HEALTH QUESTIONNAIRE, A TRAINING-STATUS QUESTIONNAIRE, AND A YOGA-EXPERIENCE QUESTIONNAIRE. PRIOR TO THE YOGA PRACTICE, EACH PARTICIPANT'S HEIGHT, BODY FAT PERCENTAGE, TRUNK OR LUMBAR FLEXIBILITY, AND ARTERIAL STIFFNESS AS ASSESSED BY CAROTID FEMORAL PULSE WAVE VELOCITY (CFPWV) WERE MEASURED. FOR EACH POSTURE DURING THE YOGA PRACTICE, THE STUDY CONTINUOUSLY MEASURED SYSTOLIC, MEAN, AND DIASTOLIC BLOOD PRESSURES, HEART RATE, STROKE VOLUME, AND CARDIAC OUTPUT. RESULTS: SYSTOLIC, MEAN, AND DIASTOLIC BLOOD PRESSURES INCREASED SIGNIFICANTLY DURING THE YOGA PRACTICE. THE MAGNITUDE OF THESE INCREASES IN BLOOD PRESSURE WAS GREATEST WITH STANDING POSTURES. HEART RATE AND CARDIAC OUTPUT INCREASED SIGNIFICANTLY DURING YOGA PRACTICE, ESPECIALLY WITH STANDING POSTURES. OVERALL, NO DIFFERENCES EXISTED IN CARDIOVASCULAR RESPONSES BETWEEN THE NOVICE AND ADVANCED PRACTITIONERS THROUGHOUT THE YOGA TESTING SESSION; CFPWV VELOCITY WAS SIGNIFICANTLY AND INVERSELY ASSOCIATED WITH LUMBAR FLEXION BUT NOT WITH SIT-AND-REACH TEST SCORES. CONCLUSIONS: THE RESEARCH TEAM CONCLUDED THAT A VARIETY OF HATHA YOGA POSTURES, ESPECIALLY STANDING POSTURES, EVOKED SIGNIFICANT INCREASES IN BLOOD PRESSURE. THE ELEVATION IN BLOOD PRESSURE DUE TO YOGA PRACTICE WAS ASSOCIATED WITH INCREASES IN CARDIAC OUTPUT AND HEART RATE, WHICH ARE RESPONSES SIMILAR TO THOSE OBSERVED IN ISOMETRIC EXERCISE. THE LACK OF OBVIOUS DIFFERENCES IN BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES BETWEEN NOVICE AND ADVANCED YOGA PRACTITIONERS SUGGESTS THAT LONG-TERM YOGA PRACTICE DOES NOT ATTENUATE ACUTE YOGA RESPONSES.	2013	

8  229  40 A SYSTEMATIC REVIEW OF THE ENERGY COST AND METABOLIC INTENSITY OF YOGA. PURPOSE: WITH THE INCREASING POPULARITY OF HATHA YOGA, IT IS IMPORTANT TO UNDERSTAND THE ENERGY COST AND METS OF YOGA PRACTICE WITHIN THE CONTEXT OF THE AMERICAN COLLEGE OF SPORTS MEDICINE (ACSM) AND THE AMERICAN HEART ASSOCIATION (AHA) PHYSICAL ACTIVITY GUIDELINES. METHODS: THIS SYSTEMATIC REVIEW EVALUATED THE ENERGY COST AND METABOLIC INTENSITY OF YOGA PRACTICE INCLUDING YOGA ASANAS (POSES/POSTURES) AND PRANAYAMAS (BREATH EXERCISES) MEASURED BY INDIRECT CALORIMETRY. THE ENGLISH-SPEAKING LITERATURE WAS SURVEYED VIA PUBMED USING THE GENERAL TERMS "YOGA" AND "ENERGY EXPENDITURE" WITH NO DATE LIMITATIONS. RESULTS: THIRTEEN MANUSCRIPTS WERE INITIALLY IDENTIFIED WITH AN ADDITIONAL FOUR LOCATED FROM REVIEW OF MANUSCRIPT REFERENCES. OF THE 17 STUDIES, 10 EVALUATED THE ENERGY COST AND METS OF FULL YOGA SESSIONS OR FLOW THROUGH SURYA NAMASKAR (SUN SALUTATIONS), EIGHT OF INDIVIDUAL ASANAS, AND FIVE OF PRANAYAMAS. METS FOR YOGA PRACTICE AVERAGED 3.3 +/- 1.6 (RANGE = 1.83-7.4 METS) AND 2.9 +/- 0.8 METS WHEN ONE OUTLIER (I.E., 7.4 METS FOR SURYA NAMASKAR) WAS OMITTED. METS FOR INDIVIDUAL ASANAS AVERAGED 2.2 +/- 0.7 (RANGE = 1.4-4.0 METS), WHEREAS THAT OF PRANAYAMAS WAS 1.3 +/- 0.3. ON THE BASIS OF ACSM/AHA CLASSIFICATION, THE INTENSITY OF MOST ASANAS AND FULL YOGA SESSIONS RANGED FROM LIGHT (LESS THAN 3 METS) TO MODERATE AEROBIC INTENSITY (3-6 METS), WITH THE MAJORITY CLASSIFIED AS LIGHT INTENSITY. CONCLUSION: THIS REVIEW SUGGESTS THAT YOGA IS TYPICALLY CLASSIFIED AS A LIGHT-INTENSITY PHYSICAL ACTIVITY. HOWEVER, A FEW SEQUENCES/POSES, INCLUDING SURYA NAMASKAR, MEET THE CRITERIA FOR MODERATE- TO VIGOROUS-INTENSITY ACTIVITY. IN ACCORDANCE WITH THE ACSM/AHA GUIDELINES, THE PRACTICE OF ASANA SEQUENCES WITH MET INTENSITIES HIGHER THAN THREE (I.E., >10 MIN) CAN BE ACCUMULATED THROUGHOUT THE DAY AND COUNT TOWARD DAILY RECOMMENDATIONS FOR MODERATE- OR VIGOROUS-INTENSITY PHYSICAL ACTIVITY.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
9 2340  39 USE OF A 'POSE RATE' TO QUANTIFY YOGA. OBJECTIVE: TO DEVELOP A METHOD THAT DESCRIBES THE PHYSICAL ACTIVITY COMPLETED DURING YOGA, AND TO USE THIS METHOD TO COMPARE THREE DIFFERENT YOGA VIDEO CATEGORIES: WEIGHT LOSS, BEGINNER, AND STRESS RELIEF/MEDITATION. DESIGN: THIS STUDY CONDUCTED CONTENT ANALYSIS OF COMMERCIALLY AVAILABLE YOGA VIDEOS IN WHICH PRE-DETERMINED CHARACTERISTICS OF YOGA ROUTINES WERE RECORDED. OUTCOME MEASURES INCLUDED THE YOGA ROUTINE CHARACTERISTICS OF: DURATION OF EACH YOGA ROUTINE, NUMBER OF COMPLETED POSES, BODY POSITION OF EACH POSE, AND POSE RATE. RESULTS: TWENTY-TWO ROUTINES FROM YOGA VIDEOS WERE ANALYZED. DURATION OF ROUTINE BETWEEN THE THREE DIFFERENT CATEGORIES WAS NOT SIGNIFICANTLY DIFFERENT. THERE WERE SIGNIFICANT DIFFERENCES BETWEEN THE VIDEO CATEGORIES BASED ON THE CHARACTERISTICS OF TOTAL NUMBER OF POSES AND THE POSE RATE, WITH WEIGHT LOSS ROUTINES HAVING THE HIGHEST VALUES COMPARE TO BEGINNER ROUTINES AND STRESS RELIEF/MEDITATION (TOTAL NUMBER OF POSES: 74.1, 34.3, 25.6 POSES, P < 0.05; POSE RATE: 2.5M 1.5, 1.1 POSES/MIN, P < 0.05, RESPECTIVELY). ADDITIONALLY, DIFFERENCES WERE OBSERVED BETWEEN BODY POSTURES IN POSES WITH WEIGHT LOSS VIDEOS INCLUDING MORE STANDING POSES (38.8, 17.0, 5.7 POSES, P < 0.05, RESPECTIVELY) AND A LOWER PERCENTAGE OF SEATED (9.9%, 15.8%, 39.0%, P < 0.05, RESPECTIVELY) AND SUPINE POSES (10.9%, 18.5%, 28.8%, P < 0.05, RESPECTIVELY) COMPARED TO THE BEGINNER AND STRESS/MEDITATION VIDEOS. CONCLUSIONS: THE CHARACTERISTICS OF TOTAL POSES, POSE RATE, AND TOTAL STANDING POSES SHOWED SIGNIFICANT DIFFERENCES BETWEEN DIFFERENT STYLES OF YOGA. FURTHER RESEARCH SHOULD BE CONDUCTED TO VALIDATE THESE CHARACTERISTICS AS AN INTENSITY MEASURES AND TO ASSESS IF THESE CHARACTERISTICS HAVE VARIATIONS BETWEEN DIFFERENT YOGA STYLES.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
10 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
11 1514  32 IS WEEKLY FREQUENCY OF YOGA PRACTICE SUFFICIENT? PHYSIOLOGICAL EFFECTS OF HATHA YOGA AMONG HEALTHY NOVICE WOMEN. BENEFICIAL PHYSICAL AND PHYSIOLOGICAL HEALTH OUTCOMES OF YOGA PRACTICE ARE WELL-SUPPORTED BY EMPIRICAL DATA. HOWEVER, WHETHER WEEKLY FREQUENCY OF TRAINING IS SUFFICIENT TO EVOKE POSITIVE CHANGES, IS STILL AN OPEN QUESTION. THE PRESENT INTERVENTION STUDY INVESTIGATED THE EFFECTS OF 10 WEEKLY SESSIONS OF BEGINNER LEVEL HATHA YOGA WITH RESPECT TO INDICATORS OF PHYSICAL FITNESS AND PHYSIOLOGICAL MARKERS. 82 YOUNG WOMEN (MEAN AGE OF 22.0 +/- 3.83 YEARS) PARTICIPATED IN THE STUDY. THE YOGA GROUP (N = 49) ATTENDED A YOGA COURSE CONSISTING OF 10 SESSIONS (1.5 H EACH) ON A WEEKLY BASIS. THE CONTROL GROUP (N = 33) DID NOT RECEIVE ANY INTERVENTION. BMI, BODY FAT PERCENTAGE, BALANCE (ONE-LEG-STAND TEST WITH OPEN AND CLOSED EYES, FUNCTIONAL REACH TEST), FLEXIBILITY (SIDE BEND TEST, MODIFIED SIT AND REACH TEST) CORE MUSCLE STRENGTH (PLANK TEST) AS WELL AS RESTING HEART RATE (HR), AND HEART RATE VARIABILITY (HRV) WERE ASSESSED 1 WEEK BEFORE AND AFTER THE COURSE. BOTH FREQUENTIST AND BAYESIAN ANALYSIS SHOWED AN IMPROVEMENT IN FLEXIBILITY AND BALANCE IN THE YOGA GROUP COMPARED TO THE CONTROL GROUP. THE YOGA GROUP SHOWED ALSO INCREASED CORE MUSCLE STRENGTH. NO CHANGES WITH RESPECT TO BMI, BODY FAT PERCENTAGE, RESTING HR AND HRV WERE FOUND. NINETY MINUTE BEGINNER LEVEL HATHA YOGA CLASSES WERE CHARACTERIZED BY 93.39 HR AND 195 KCAL ENERGY CONSUMPTION ON AVERAGE. THE PRESENT FINDINGS SUGGEST THAT WEEKLY SETTING OF A 10-SESSION LONG HATHA YOGA TRAINING LEADS TO IMPROVEMENTS IN BALANCE, FLEXIBILITY AND CORE MUSCLE STRENGTH AMONG HEALTHY YOUNG WOMEN. HOWEVER, FOR CHANGES IN BMI, BODY FAT PERCENTAGE, RESTING HR AND HRV LONGER, AND/OR MORE INTENSE INTERVENTIONS ARE NEEDED.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
12 2043  25 THE ACUTE EFFECTS OF VINYASA FLOW YOGA ON VASCULAR FUNCTION, LIPID AND GLUCOSE CONCENTRATIONS, AND MOOD. WHILE THE CHRONIC EFFECTS OF CERTAIN STYLES OF YOGA ON CARDIOMETABOLIC FACTORS HAVE BEEN INVESTIGATED, LITTLE IS KNOWN ABOUT THE ACUTE EFFECTS OF A SINGLE YOGA SESSION ON THESE OUTCOMES. MOREOVER, VINYASA YOGA'S POTENTIAL TO MODULATE CARDIOMETABOLIC OUTCOMES HAS NOT BEEN ESTABLISHED. THE PURPOSE OF THIS STUDY IS TO DETERMINE THE ACUTE EFFECTS OF A VINYASA YOGA SESSION ON ARTERIAL STIFFNESS, WAVE REFLECTION, LIPID AND GLUCOSE CONCENTRATIONS, AND MOOD IN ADULTS WITH PRIOR YOGA EXPERIENCE. THIRTY YOGA PRACTITIONERS WITH A MINIMUM OF 3 MONTHS OF PRACTICE EXPERIENCE WERE ENROLLED INTO THE STUDY. CAROTID-FEMORAL PULSE WAVE VELOCITY (CF-PWV), AUGMENTATION INDEX (AIX), LIPID PROFILE, GLUCOSE CONCENTRATIONS, AND MOOD (POSITIVE AND NEGATIVE AFFECT SCALE) WERE ASSESSED AT BASELINE AND IMMEDIATELY FOLLOWING A 1 -H VINYASA YOGA SESSION. AFTER THE YOGA SESSION, PARTICIPANTS HAD SIGNIFICANTLY LOWER AIX (P < 0.001), NON-HDL CHOLESTEROL (P < 0.05), AND NEGATIVE AFFECT (P < 0.01) COMPARED TO BASELINE. THESE RESULTS HIGHLIGHT THE EFFICACY OF A SINGLE BOUT OF YOGA IN ALTERING WAVE REFLECTION WHILE IMPROVING MOOD AND LIPID CONCENTRATIONS IN HEALTHY ADULTS WITH A HISTORY OF YOGA PRACTICE.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
13 2085  40 THE EFFECT OF LONG TERM COMBINED YOGA PRACTICE ON THE BASAL METABOLIC RATE OF HEALTHY ADULTS. BACKGROUND: DIFFERENT PROCEDURES PRACTICED IN YOGA HAVE STIMULATORY OR INHIBITORY EFFECTS ON THE BASAL METABOLIC RATE WHEN STUDIED ACUTELY. IN DAILY LIFE HOWEVER, THESE PROCEDURES ARE USUALLY PRACTICED IN COMBINATION. THE PURPOSE OF THE PRESENT STUDY WAS TO INVESTIGATE THE NET CHANGE IN THE BASAL METABOLIC RATE (BMR) OF INDIVIDUALS ACTIVELY ENGAGING IN A COMBINATION OF YOGA PRACTICES (ASANA OR YOGIC POSTURES, MEDITATION AND PRANAYAMA OR BREATHING EXERCISES) FOR A MINIMUM PERIOD OF SIX MONTHS, AT A RESIDENTIAL YOGA EDUCATION AND RESEARCH CENTER AT BANGALORE. METHODS: THE MEASURED BMR OF INDIVIDUALS PRACTICING YOGA THROUGH A COMBINATION OF PRACTICES WAS COMPARED WITH THAT OF CONTROL SUBJECTS WHO DID NOT PRACTICE YOGA BUT LED SIMILAR LIFESTYLES. RESULTS: THE BMR OF THE YOGA PRACTITIONERS WAS SIGNIFICANTLY LOWER THAN THAT OF THE NON-YOGA GROUP, AND WAS LOWER BY ABOUT 13 % WHEN ADJUSTED FOR BODY WEIGHT (P < 0.001). THIS DIFFERENCE PERSISTED WHEN THE GROUPS WERE STRATIFIED BY GENDER; HOWEVER, THE DIFFERENCE IN BMR ADJUSTED FOR BODY WEIGHT WAS GREATER IN WOMEN THAN MEN (ABOUT 8 AND 18% RESPECTIVELY). IN ADDITION, THE MEAN BMR OF THE YOGA GROUP WAS SIGNIFICANTLY LOWER THAN THEIR PREDICTED VALUES, WHILE THE MEAN BMR OF NON-YOGA GROUP WAS COMPARABLE WITH THEIR PREDICTED VALUES DERIVED FROM 1985 WHO/FAO/UNU PREDICTIVE EQUATIONS. CONCLUSION: THIS STUDY SHOWS THAT THERE IS A SIGNIFICANTLY REDUCED BMR, PROBABLY LINKED TO REDUCED AROUSAL, WITH THE LONG TERM PRACTICE OF YOGA USING A COMBINATION OF STIMULATORY AND INHIBITORY YOGIC PRACTICES.	2006	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
14 1759  30 POSITIVE EFFECT OF YOGA ON CARDIORESPIRATORY FITNESS: A PILOT STUDY. INTRODUCTION: CARDIOVASCULAR DISEASE (CVD) IS THE LEADING CAUSE OF DEATH IN DEVELOPED COUNTRIES. AN INTEGRAL PART OF PRIMARY PREVENTION IS PHYSICAL ACTIVITY. ONE FORM OF PHYSICAL ACTIVITY TO BE POTENTIALLY USED IS YOGA, BUT THIS ACTIVITY IS ASSOCIATED WITH LOWER ENERGY EXPENDITURE THAN THAT RECOMMENDED FOR PREVENTION. THE STUDY AIMED AT ASSESSING THE EFFECT OF REGULAR YOGA SESSIONS ON THE AEROBIC CAPACITY OF THE PRACTITIONERS AND COMPARING IT WITH THE NORMAL POPULATION PERFORMING PHYSICAL ACTIVITY RECOMMENDED BY GUIDELINES. MATERIALS AND METHODS: FIFTY-EIGHT PERSONS (16 MALES) WITH A MEAN AGE OF 50.0 +/- 11.06 YEARS COMPRISING THE YOGA GROUP PRACTICED YOGA FOR AT LEAST 1 H A DAY FOR OVER 2 YEARS. THEY UNDERWENT SPIROERGOMETRY UNDER MAXIMAL EXERCISE TESTING TO ASSESS BASIC PERFORMANCE PARAMETERS. THEIR RESULTS WERE COMPARED WITH THOSE IN 54 AGE-MATCHED CONTROLS (16 MALES MEAN AGE OF 48 +/- 11.86 YEARS PERFORMING A REGULAR AEROBIC PHYSICAL ACTIVITY FOR AT LEAST 7 H A WEEK. RESULTS: THE YOGA GROUP HAD STATISTICALLY SIGNIFICANTLY HIGHER MAXIMUM PERFORMANCE PER KILOGRAM (P = 0.007) AND MAXIMUM OXYGEN CONSUMPTION PER KILOGRAM PER MINUTE (P = 0.028). CONCLUSIONS: DESPITE LOW ENERGY EXPENDITURE, YOGA PRACTICES ARE BETTER IN SOME CARDIORESPIRATORY FITNESS PARAMETERS THAN OTHER AEROBIC ACTIVITIES RECOMMENDED BY CURRENT GUIDELINES FOR CVD PREVENTION.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
15 1316  27 HEART RATE AND THERMAL RESPONSES TO POWER YOGA. BACKGROUND: AND PURPOSE: YOGA HAS GROWN IN POPULARITY AND MAY OFFER A VIABLE ALTERNATIVE FORM OF PHYSICAL ACTIVITY. THE PURPOSE OF THIS STUDY WAS TO EXAMINE HEART RATE, HYDRATION, AND THERMAL RESPONSES TO A POWER YOGA SEQUENCE. MATERIALS AND METHODS: TWENTY-SEVEN MEN AND WOMEN (N=4/23; MEAN+/-SD AGE=23.3+/-3.3 YEARS; BMI=23+/-3KGM(-2)) UNDERWENT APPROXIMATELY 45MIN OF POWER YOGA. HEART RATE AND SKIN TEMPERATURE WERE RECORDED. MASS WAS MEASURED BEFORE AND AFTER EXERCISE TO ESTIMATE FLUID LOSS. TIME SPENT IN LIGHT, MODERATE, AND VIGOROUS HEART RATE ZONES WAS CALCULATED. RESULTS: HEART RATE AND SKIN TEMPERATURE INCREASED (P<0.0001). PARTICIPANTS SPENT MORE TIME IN MODERATE AND VIGOROUS HEART RATE ZONES THAN IN LIGHT INTENSITY (P<0.0001). THERE WAS A REDUCTION IN BODY MASS (-0.28+/-0.13KG, P<0.0001). CONCLUSION: POWER YOGA MAY BE CONSIDERED MODERATE-VIGOROUS INTENSITY EXERCISE, BASED ON HEART-RATE.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
16 1246  36 FEASIBILITY OF INTEGRATION OF YOGA IN A BEHAVIORAL WEIGHT-LOSS INTERVENTION: A RANDOMIZED TRIAL. OBJECTIVE: THIS STUDY EXAMINED THE FEASIBILITY AND COMPARISON OF TWO STYLES OF YOGA WITHIN THE CONTEXT OF A STANDARD BEHAVIORAL WEIGHT-LOSS INTERVENTION (SBWI). METHODS: FIFTY ADULTS WITH OBESITY (BMI: 31.3 +/- 3.8 KG/M(2) ) PARTICIPATED IN THIS 6-MONTH STUDY THAT INCLUDED A SBWI AND A CALORIE- AND FAT-REDUCED DIET. RANDOMIZATION WAS TO RESTORATIVE HATHA (SBWI+RES) OR VINYASA (SBWI+VIN) YOGA. YOGA WAS PRESCRIBED TO INCREASE FROM 20 TO 40 TO 60 MINUTES PER SESSION ACROSS THE INTERVENTION. WEIGHT WAS ASSESSED AT BASELINE AND 6 MONTHS. PERCEPTIONS OF YOGA WERE ASSESSED AT THE COMPLETION OF THE INTERVENTION. RESULTS: ADJUSTED WEIGHT LOSS WAS -3.4 KG (95% CI: -6.4 TO -0.5) IN SBWI+RES AND -3.8 KG (95% CI: -6.8 TO -0.9) IN SBWI+VIN (P < 0.001), WITH NO DIFFERENCE BETWEEN GROUPS. OF ALL PARTICIPANTS, 74.4% REPORTED THAT THEY WOULD CONTINUE PARTICIPATION IN YOGA AFTER THE SBWI. SESSION DURATION WAS A BARRIER AS YOGA INCREASED FROM 20 TO 40 TO 60 MINUTES PER DAY, WITH 0%, 7.5%, AND 48.8% REPORTING THIS BARRIER, RESPECTIVELY. CONCLUSIONS: AMONG ADULTS WITH OBESITY, YOGA PARTICIPATION, WITHIN THE CONTEXT OF A SBWI, APPEARS TO BE FEASIBLE, WITH WEIGHT LOSS NOT DIFFERING BY STYLE OF YOGA. PROGRESSING TO 60 MINUTES PER SESSION APPEARS TO BE A BARRIER TO ENGAGEMENT IN YOGA IN THIS POPULATION.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
17 1258  32 FIFTEEN MINUTES OF CHAIR-BASED YOGA POSTURES OR GUIDED MEDITATION PERFORMED IN THE OFFICE CAN ELICIT A RELAXATION RESPONSE. THIS STUDY COMPARED ACUTE (15 MIN) YOGA POSTURE AND GUIDED MEDITATION PRACTICE, PERFORMED SEATED IN A TYPICAL OFFICE WORKSPACE, ON PHYSIOLOGICAL AND PSYCHOLOGICAL MARKERS OF STRESS. TWENTY PARTICIPANTS (39.6 +/- 9.5 YR) COMPLETED THREE CONDITIONS: YOGA, MEDITATION, AND CONTROL (I.E., USUAL WORK) SEPARATED BY >/=24 HRS. YOGA AND MEDITATION SIGNIFICANTLY REDUCED PERCEIVED STRESS VERSUS CONTROL, AND THIS EFFECT WAS MAINTAINED POSTINTERVENTION. YOGA INCREASED HEART RATE WHILE MEDITATION REDUCED HEART RATE VERSUS CONTROL (P < 0.05). RESPIRATION RATE WAS REDUCED DURING YOGA AND MEDITATION VERSUS CONTROL (P < 0.05). DOMAINS OF HEART RATE VARIABILITY (E.G., SDNN AND TOTAL POWER) WERE SIGNIFICANTLY REDUCED DURING CONTROL VERSUS YOGA AND MEDITATION. SYSTOLIC AND DIASTOLIC BLOOD PRESSURE WERE REDUCED SECONDARY TO MEDITATION VERSUS CONTROL ONLY (P < 0.05). PHYSIOLOGICAL ADAPTATIONS GENERALLY REGRESSED TOWARD BASELINE POSTINTERVENTION. IN CONCLUSION, YOGA POSTURES OR MEDITATION PERFORMED IN THE OFFICE CAN ACUTELY IMPROVE SEVERAL PHYSIOLOGICAL AND PSYCHOLOGICAL MARKERS OF STRESS. THESE EFFECTS MAY BE AT LEAST PARTIALLY MEDIATED BY REDUCED RESPIRATION RATE.	2012	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
18 2152  29 THE EFFECTS OF SELECTED ASANAS IN IYENGAR YOGA ON FLEXIBILITY: PILOT STUDY. IN RECENT YEARS THE PRACTICE OF YOGA HAS GAINED POPULARITY AS A FORM OF PHYSICAL FITNESS AND EXERCISE, AND HAS BEEN SAID TO IMPROVE STRENGTH AND FLEXIBILITY. THE MAIN OBJECTIVE OF THIS RESEARCH PROJECT WAS TO EVALUATE THE EFFECTS OF A SIX WEEK IYENGAR YOGA INTERVENTION ON FLEXIBILITY. N = 16 LOW TO MODERATELY ACTIVE FEMALES (52.37 +/- 7.79 YEARS) ATTENDED IYENGAR YOGA PRACTICE FOR A TOTAL OF 6 WEEKS, CONSISTING OF ONE 90 MIN SESSION PER WEEK. LUMBAR AND HAMSTRING FLEXIBILITY WERE ASSESSED PRE AND POST-INTERVENTION USING A STANDARD SIT AND REACH TEST. THE RESULTS SHOW A SIGNIFICANT INCREASE IN FLEXIBILITY, INDICATING 6 WEEKS OF SINGLE SESSION YOGA TRAINING MAY BE EFFECTIVE IN INCREASING ERECTOR SPINAE AND HAMSTRING FLEXIBILITY. THIS IS IMPORTANT WHEN CONSIDERING THAT MUCH OF THE POPULATION FIND IT DIFFICULT TO ATTEND MORE THAN ONE SESSION A WEEK INTO THEIR TRAINING SCHEDULE.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
19 1148  36 ENERGY EXPENDITURE IN VINYASA YOGA VERSUS WALKING. BACKGROUND: WHETHER THE ENERGY COST OF VINYASA YOGA MEETS THE CRITERIA FOR MODERATE-TO-VIGOROUS PHYSICAL ACTIVITY HAS NOT BEEN ESTABLISHED. PURPOSE: TO COMPARE ENERGY EXPENDITURE DURING ACUTE BOUTS OF VINYASA YOGA AND 2 WALKING PROTOCOLS. METHODS: PARTICIPANTS (20 MALES, 18 FEMALES) PERFORMED 60-MINUTE SESSIONS OF VINYASA YOGA (YOGA), TREADMILL WALKING AT A SELF-SELECTED BRISK PACE (SELF), AND TREADMILL WALKING AT A PACE THAT MATCHED THE HEART RATE OF THE YOGA SESSION (HR-MATCH). ENERGY EXPENDITURE WAS ASSESSED VIA INDIRECT CALORIMETRY. RESULTS: ENERGY EXPENDITURE WAS SIGNIFICANTLY LOWER IN YOGA COMPARED WITH HR-MATCH (DIFFERENCE = 79.5 +/- 44.3 KCAL; P < .001) AND SELF (DIFFERENCE = 51.7 +/- 62.6 KCAL; P < .001), BUT NOT IN SELF COMPARED WITH HR-MATCH (DIFFERENCE = 27.8 +/- 72.6 KCAL; P = .054). A SIMILAR PATTERN WAS OBSERVED FOR METABOLIC EQUIVALENTS (HR-MATCH = 4.7 +/- 0.8, SELF = 4.4 +/- 0.7, YOGA = 3.6 +/- 0.6; P < .001). ANALYSES USING ONLY THE INITIAL 45 MINUTES FROM EACH OF THE SESSIONS, WHICH EXCLUDED THE RESTORATIVE COMPONENT OF YOGA, SHOWED ENERGY EXPENDITURE WAS SIGNIFICANTLY LOWER IN YOGA COMPARED WITH HR-MATCH (DIFFERENCE = 68.0 +/- 40.1 KCAL; P < .001) BUT NOT COMPARED WITH SELF (DIFFERENCE = 15.1 +/- 48.7 KCAL; P = .189). CONCLUSIONS: YOGA MEETS THE CRITERIA FOR MODERATE-INTENSITY PHYSICAL ACTIVITY. THUS, YOGA MAY BE A VIABLE FORM OF PHYSICAL ACTIVITY TO ACHIEVE PUBLIC HEALTH GUIDELINES AND TO ELICIT HEALTH BENEFITS.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
20 1147  48 ENERGY EXPENDITURE DURING A VINYASA YOGA SESSION. BACKGROUND: VINYASA YOGA HAS BEEN RECENTLY PROMOTED AS ONE OF THE MOST POPULAR MINDFUL EXERCISES TO IMPROVE OVERALL HEALTH, INCLUDING BODY WEIGHT MANAGEMENT. THE PURPOSE OF THIS STUDY WAS TO DETERMINE THE METABOLIC RESPONSE OF 24 MODERATELY TRAINED INDIVIDUALS DURING A 90-MIN GROUP VINYASA YOGA ROUTINE. METHODS: HEART RATE (HR) TIME COURSE OF 12 MALES AND 12 FEMALES (AGE: 39+/-7.33 YEARS) WAS RECORDED DURING TWO GROUP VINYASA YOGA SESSIONS CONSISTED OF FOUR SECTIONS (WARM-UP, HIGH-INTENSITY SURYA NAMASKAR (HSN), NO SURYA NAMASKAR POSTURES, AND COOL-DOWN). MAXIMAL OXYGEN UPTAKE (VO<INF>2PEAK</INF>) AND MAXIMUM HR HAD BEEN ESTIMATED EARLIER AFTER A MAXIMAL TREADMILL TEST. VO<INF>2</INF> DURING VINYASA YOGA SESSIONS WAS ESTIMATED FROM INDIVIDUAL REGRESSION EQUATIONS USING THE RELATIONSHIP OF VO<INF>2</INF> AND HR VALUES DERIVED FROM VO<INF>2PEAK</INF> TEST, WHILE THE METABOLIC RATE (KCAL/MIN) WAS CALCULATED FROM THE RELATIONSHIP OF HR AND KCAL/MIN. TOTAL SESSION ENERGY CONSUMPTION WAS THE AVERAGE VALUE OF THE TWO YOGA SESSIONS. RESULTS: THE 2 (GENDER) X 4 (SECTIONS) MIXED ANOVA REVEALED NO SIGNIFICANT INTERACTION BETWEEN THE TWO FACTORS (P=0.101) FOR THE MEAN METABOLIC RATE (7.1+/-2.6 KCAL/MIN). MEAN METABOLIC RATE THOUGHT WAS HIGHER (P=0.015) IN MALES COMPARED TO FEMALES AT EACH SECTION. ALSO, SIGNIFICANT DIFFERENCES WERE FOUND AMONG THE FOUR VINYASA YOGA SECTIONS (P<0.001) IN THE RATE OF ENERGY EXPENDITURE, WITH HSN PRESENTING THE HIGHEST MEAN VALUES (P<0.05). CONCLUSIONS: IT SEEMS THAT SYSTEMATIC PARTICIPATION IN VINYASA YOGA MAY EFFECTIVELY IMPROVE CARDIORESPIRATORY FITNESS AND PROMOTE BODY WEIGHT LOSS, AS AN ALTERNATIVE METHOD TO TRADITIONAL AEROBIC EXERCISE.	2020