1 1611 138 METABOLIC DEMANDS OF YOGA AT VARYING TEMPOS AND COMPARED WITH WALKING. BACKGROUND: YOGA IS A POPULAR ALTERNATIVE TO WALKING, BUT THE TEMPO AT WHICH ASANAS MUST BE PERFORMED TO ELICIT COMPARABLE METABOLIC AND CARDIORESPIRATORY DEMANDS IS UNKNOWN. THEREFORE, THE AUTHORS AIM TO COMPARE THE METABOLIC DEMANDS OF MODERATE-INTENSITY WALKING TO SURYA NAMASKAR YOGA PERFORMED AT VARYING TEMPOS. METHODS: INACTIVE OBESE ADULTS WITH LIMITED PRIOR YOGA EXPERIENCE (N = 10) COMPLETED 10 MINUTES OF TREADMILL WALKING AT A SELF-SELECTED PACE (RATING OF PERCEIVED EXERTION = 12-13) AND THREE, 10-MINUTE BOUTS OF YOGA AT A LOW (6 S/POSE; LSUN), MEDIUM (4 S/POSE; MSUN), AND HIGH (3 S/POSE; HSUN) TEMPO WITH 10-MINUTES REST BETWEEN EXERCISE BOUTS. RESULTS: MEAN METABOLIC EQUIVALENTS OBSERVED IN MSUN (3.64 [0.607]), HSUN (4.22 [0.459]), AND TREADMILL (5.29 [1.147]) WERE GREATER THAN 3.0 (P </= .01), BUT NOT LSUN (3.28 [0.529], P = .13). TREADMILL ELICITED GREATER CALORIC AND KILOCALORIC EXPENDITURE (1.36 [0.23] L.MIN-1; 64 [11] KCAL) THAN LSUN (0.87 [0.24] L.MIN-1; 39 [11] KCAL) AND MSUN (1.00 [0.29] L.MIN-1; 45 [13] KCAL) (P </= .01). ABSOLUTE V O2 BETWEEN YOGA TEMPOS WERE NOT DIFFERENT, BUT RELATIVE V O2 WAS HIGHER IN HSUN (14.89 [1.74] ML.MIN-1.KG) VERSUS LSUN (11.39 [1.83] ML.MIN-1.KG) (P = .02). CONCLUSIONS: YOGA CAN MEET (LSUN) OR EXCEED (MSUN AND HSUN) MODERATE-INTENSITY EXERCISE RECOMMENDATIONS. FOR UNFIT OR OBESE POPULATIONS, VARYING TEMPOS OF YOGA PRACTICE MAY SERVE AS A LOWER-IMPACT OPTION FOR BEGINNING AN EXERCISE PROGRAM.	2019	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
2 1148  39 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
3 1693  34 OXYGEN CONSUMPTION DURING VINIYOGA PRACTICE IN ADULTS. CONTEXT: THE PURPOSE OF THIS STUDY WAS TO MEASURE THE OXYGEN CONSUMPTION (VO2) DURING VINIYOGA YOGA MOVEMENTS (ASANAS) AND TO COMPARE VO2 WALKING AMONG ADULTS. METHODS: YOGA PRACTITIONERS (N = 10) WERE RECRUITED TO MEASURE VO2 WHILE AT REST (30 MIN), PRACTICING YOGA (16 MOVEMENTS WITH DIFFERENT VARIATIONS), AND TREADMILL WALKING AT 2 MPH (10 MIN) AND 3 MPH (10 MIN). VO2 WAS MEASURED USING A WHOLE-ROOM INDIRECT CALORIMETRY. EACH YOGA MOVEMENT WAS CATEGORIZED BY BODY ORIENTATION AS STANDING, LYING, AND SITTING. THE DIFFERENCES IN VO2 BETWEEN YOGA AND WALKING WERE EXAMINED USING PEARSON'S CORRELATIONS. DIFFERENCES IN VO2 BETWEEN POSES (STANDING, SITTING, AND LYING) WERE EXAMINED USING LINEAR REGRESSION MODELS. VO2. RESULTS: MEAN YOGA-VO2 FOR THE ENTIRE YOGA SESSION WAS 3.7 (STANDARD DEVIATION [SD] 0.43, RANGE: 4.4-8.9) ML/KG/MIN. YOGA-VO2 VARIED BY BODY ORIENTATION: STANDING = 7.5 (SD = 1.5) ML/KG/MIN, LYING = 5.3 (SD = 1.0) ML/KG/MIN, AND SITTING = 5.4 (SD = 1.1) ML/KG/MIN. AFTER ADJUSTING FOR BODY MASS, FREQUENCY OF YOGA PRACTICE, AND RESTING ENERGY EXPENDITURE, FEMALE GENDER WAS NEGATIVELY ASSOCIATED WITH MEAN YOGA VO2 FOR STANDING (B = -112.19, P < 0.05), LYING (B = -141.87, P < 0.05), AND SITTING (B = -129.96, P < 0.05). MEAN VO2 FOR WALKING 2 MPH WAS COMPARABLE WITH SITTING (R = 0.836, P < 0.05) AND LYING (R = 0.735, P < 0.05) WHEREAS WALKING AT 3 MPH WAS COMPARABLE WITH STANDING (R = 0.718, P < 0.05) AND SITTING (R = 0.760, P < 0.05). CONCLUSION: WE CONCLUDE THAT VO2 DURING YOGA PRACTICE IS COMPARABLE TO VO2 DURING SLOW TREADMILL WALKING AND MAY VARY BASED ON GENDER AND BODY ORIENTATION.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
4 1196  22 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
5  268  33 ACUTE PHYSIOLOGIC EFFECTS OF PERFORMING YOGA IN THE HEAT ON ENERGY EXPENDITURE, RANGE OF MOTION, AND INFLAMMATORY BIOMARKERS. PERFORMING YOGA IN A HEATED ENVIRONMENT (HY) IS A POPULAR EXERCISE MODE PURPORTED TO IMPROVE RANGE OF MOTION (ROM), BODY COMPOSITION, AND AEROBIC FITNESS. THE PURPOSE OF THIS INVESTIGATION WAS TO COMPARE A SESSION OF HY TO ROOM TEMPERATURE YOGA (RTY) WITH REGARDS TO ROM, OXYGEN CONSUMPTION, CALORIC EXPENDITURE, AND BIOMARKERS OF ACUTE STRESS AND INFLAMMATION. SIXTEEN EXPERIENCED YOGA PRACTITIONERS (F14, M2; 40 +/- 11YR; 22.6 +/- 1.8 KG/M(2)) COMPLETED A 1-HOUR STANDARDIZED BIKRAM SEQUENCE IN HY (105 DEGREES F, 40 DEGREES C) AND RTY (74 DEGREES F, 23.3 DEGREES C) CONDITIONS (ORDER OF CONDITIONS RANDOMIZED, HUMIDITY STANDARDIZED AT 40%). INTRA-EXERCISE METABOLIC GAS EXCHANGE AND HEART RATE (HR) WAS MONITORED USING A METABOLIC CART. ROM MEASURES WERE TAKEN PRE AND POST-EXERCISE AT THE ELBOW, SHOULDER, HIP, AND KNEE. CYTOKINES INTERLEUKIN 6,10 (IL-6, IL-10) AND TUMOR-NECROSIS-FACTOR ALPHA (TNF-ALPHA) WERE ANALYZED FROM BLOOD SAMPLES COLLECTED PRE- AND 30-MINUTES POST-EXERCISE. INTRA-EXERCISE METABOLIC GAS EXCHANGE AND HEART RATE (HR) WAS MONITORED USING A METABOLIC CART. BOTH BOUTS ELICITED SIMILAR ACUTE CHANGES IN ROM ALTHOUGH HY ELICITED A GREATER INCREASE IN HIP ABDUCTION (RTYDELTA DEGREES = 2.3 +/- 1.3|HYDELTA DEGREES = 6.6 +/- 1.5; P < 0.05). MEAN VO2, PEAK VO2, %VO2MAX, HR, AND KCAL EXPENDITURE DID NOT DIFFER BETWEEN CONDITIONS. RER WAS LOWER DURING THE HY (RTY = 0.95 +/- 0.02| HY = 0.89 +/- 0.02; P < 0.05) WITH A CONCOMITANT ELEVATION IN FAT OXIDATION (RTY = 0.05 +/- 0.01|HY = 0.09 +/- 0.01, G.MIN(-1); P < 0.05) AND DECREASE IN CARBOHYDRATE OXIDATION (RTY = 0.51 +/- 0.04|HY = 0.44 +/- 0.03, G.MIN(-1); P < 0.05). SERUM IL-6 WAS INCREASED (15.5 +/- 8.0-FOLD) FOLLOWING HY ONLY (P < 0.05). HY DOES NOT SIGNIFICANTLY ELEVATE AEROBIC ENERGY COST COMPARED TO RTY BUT MAY ACUTELY INCREASE FAT SUBSTRATE UTILIZATION AND HIP ROM. FUTURE STUDIES REMAIN NEEDED TO ESTABLISH DOSE-RESPONSE RELATIONSHIPS FOR INCLUDING HY OR RTY INTO WELL-ROUNDED FITNESS PROGRAMS.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
6 2252  30 THE METABOLIC COST OF HATHA YOGA. TO DETERMINE THE METABOLIC AND HEART RATE (HR) RESPONSES OF HATHA YOGA, 26 WOMEN (19-40 YEARS OLD) PERFORMED A 30-MINUTE HATHA YOGA ROUTINE OF SUPINE LYING, SITTING, AND STANDING ASANAS (I.E., POSTURES). SUBJECTS FOLLOWED IDENTICAL VIDEOTAPED SEQUENCES OF HATHA YOGA ASANAS. MEAN PHYSIOLOGICAL RESPONSES WERE COMPARED TO THE PHYSIOLOGICAL RESPONSES OF RESTING IN A CHAIR AND WALKING ON A TREADMILL AT 93.86 M.MIN(-1) [3.5 MILES PER HOUR (MPH)]. DURING THE 30-MINUTE HATHA YOGA ROUTINE, MEAN ABSOLUTE OXYGEN CONSUMPTION (VO(2)), RELATIVE VO(2), PERCENTAGE MAXIMAL OXYGEN CONSUMPTION (%VO(2)R), METABOLIC EQUIVALENTS (METS), ENERGY EXPENDITURE, HR, AND PERCENTAGE MAXIMAL HEART RATE (%MHR) WERE 0.45 L.MIN(-1), 7.59 ML.KG(-1).MIN(-1), 14.50%, 2.17 METS, 2.23 KCAL.MIN(-1), 105.29 B.MIN(-1), AND 56.89%, RESPECTIVELY. WHEN COMPARED TO RESTING IN A CHAIR, HATHA YOGA REQUIRED 114% GREATER O(2) (L.MIN(-1)), 111% GREATER O(2)(ML.KG(-1).MIN(-1)), 4,294% GREATER %VO(2)R, 111% GREATER METS, 108% GREATER KCAL.MIN(-1), 24% GREATER HR, AND 24% GREATER %MHR. WHEN COMPARED TO WALKING AT 93.86 M.MIN(-1), HATHA YOGA REQUIRED 54% LOWER O(2)(L.MIN(-1)), 53% LOWER O(2)(ML.KG(-1).MIN(-1)), 68% LOWER %VO(2)R, 53% LOWER METS, 53% LOWER KCAL.MIN(-1), 21% LOWER HR, AND 21% LOWER %MHR. THE HATHA YOGA ROUTINE IN THIS STUDY REQUIRED 14.50% VO(2)R, WHICH CAN BE CONSIDERED A VERY LIGHT INTENSITY AND SIGNIFICANTLY LIGHTER THAN 44.8% VO(2)R FOR WALKING AT 93.86 M.MIN(-1) (3.5 MPH). THE INTENSITY OF HATHA YOGA MAY BE TOO LOW TO PROVIDE A TRAINING STIMULUS FOR IMPROVING CARDIOVASCULAR FITNESS. ALTHOUGH PREVIOUS RESEARCH SUGGESTS THAT HATHA YOGA IS AN ACCEPTABLE FORM OF PHYSICAL ACTIVITY FOR ENHANCING MUSCULAR FITNESS AND FLEXIBILITY, THESE DATA DEMONSTRATE THAT HATHA YOGA MAY HAVE LITTLE, IF ANY, CARDIOVASCULAR BENEFIT.	2005	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
7  323  24 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
8 1612  40 METABOLIC ENERGY CONTRIBUTIONS DURING HIGH-INTENSITY HATHA YOGA AND PHYSIOLOGICAL COMPARISONS BETWEEN ACTIVE AND PASSIVE (SAVASANA) RECOVERY. PURPOSE: THE OBJECTIVE OF THIS STUDY WAS TO INVESTIGATE METABOLIC ENERGY CONTRIBUTIONS DURING HIGH-INTENSITY HATHA YOGA (HIHY) AND TO COMPARE CHANGES IN PHYSIOLOGICAL VARIABLES BETWEEN ACTIVE AND PASSIVE RECOVERY METHODS. METHODS: THE STUDY INVOLVED 20 WOMEN YOGA INSTRUCTORS (N = 20) WHO PERFORMED 10 MIN OF HIHY (VIGOROUS SUN SALUTATION). UPON COMPLETION, THEY WERE RANDOMLY ASSIGNED TO EITHER ACTIVE (WALKING; N = 10) OR PASSIVE (SAVASANA; N = 10) RECOVERY GROUPS FOR A PERIOD OF 10 MIN. DURING HIHY, PHYSIOLOGICAL VARIABLES SUCH AS HEART RATE (HRPEAK AND HRMEAN), OXYGEN UPTAKE (VO2PEAK AND VO2MEAN), AND BLOOD LACTATE CONCENTRATIONS (PEAK LA(-)) WERE MEASURED. ENERGETIC CONTRIBUTIONS (PHOSPHAGEN; WPCR, GLYCOLYTIC; WGLY, AND OXIDATIVE; WOXI) IN KJ AND % WERE ESTIMATED USING VO2 AND LA(-) DATA. FURTHERMORE, THE METABOLIC EQUIVALENTS (METS) OF VO2PEAK AND VO2MEAN WERE CALCULATED. TO COMPARE DIFFERENT RECOVERY MODES, HRPOST, DELTAHR, VO2POST, DELTAVO2, RECOVERY LA(-), AND RECOVERY DELTALA(-) WERE ANALYZED. RESULTS: THE RESULTS REVEALED THAT HRPEAK, VO2PEAK, AND PEAK LA(-) DURING HIHY SHOWED NO DIFFERENCES BETWEEN THE TWO GROUPS (P > 0.05). VALUES OF HRPEAK, HRMEAN, METS OF VO2PEAK AND VO2MEAN, AND LA(-) DURING HIHY WERE 95.6% OF HRMAX, 88.7% OF HRMAX, 10.54 +/- 1.18, 8.67 +/-.98 METS, AND 8.31 +/- 2.18 MMOL.L(-1), RESPECTIVELY. FURTHERMORE, WOXI WAS SIGNIFICANTLY HIGHER COMPARED WITH WPCR, WGLY, AND ANAEROBIC CONTRIBUTION (WPCR + WGLY), IN KJ AND % (P < 0.0001). VO2POST AND RECOVERY DELTALA(-) WERE SIGNIFICANTLY HIGHER IN THE ACTIVE RECOVERY GROUP (P < 0.0001, P = 0.0369, RESPECTIVELY). VALUES OF DELTAVO2 AND RECOVERY LA(-) WERE SIGNIFICANTLY LOWER IN THE ACTIVE GROUP COMPARED WITH THE PASSIVE GROUP (P = 0.0115, P = 0.0291, RESPECTIVELY). CONCLUSIONS: THE STUDY CONCLUDED THAT HIGH-INTENSITY HATHA YOGA WHICH WAS PERFORMED FOR 10 MIN IS A SUITABLE OPTION FOR RELATIVELY HEALTHY PEOPLE IN THE MODERN WORKPLACE WHO MAY HAVE HATHA YOGA EXPERIENCE BUT DO NOT HAVE TIME TO PERFORM A PROLONGED EXERCISE. FOLLOWING ACTIVE RECOVERY, THEY CAN PARTICIPATE IN FURTHER HIHY SESSIONS DURING SHORT BREAKS. FURTHERMORE, A FASTER RETURN TO WORK CAN BE SUPPORTED BY PHYSIOLOGICAL RECOVERY.	2021	
                                                                                                                                                                                                                               
9 2301  25 THERMIC RESPONSES TO VEGETARIAN MEALS AND YOGA EXERCISE. THE THERMIC EFFECT (TEF) OF VEGETARIAN MEALS WAS MEASURED FOR BREAKFAST AND LUNCH IN 6 LEAN HEALTHY MEN (18-25 YEARS) DURING NORMAL FEEDING (NF) AND WITH 20% OVERFEEDING (OF) ON 28 SUCCESSIVE DAYS. THE ENERGY CONTENTS OF BREAKFAST WERE 223 +/- 10 AND 330 +/- 48 KCAL, AND THOSE OF LUNCH WERE 1,033 +/- 220 AND 1,247 +/- 222 KCAL IN NF AND OF, RESPECTIVELY. IN NF, THE TEF PER 180 MIN WAS 32.7 +/- 8.6 AND 54.8 +/- 6.3 KCAL FOR BREAKFAST AND LUNCH, RESPECTIVELY. IN OF, THE TEF WAS 38.3 +/- 8.3 KCAL FOR BREAKFAST AND 57.2 +/- 5.4 KCAL FOR LUNCH. THE INCREASE IN TOTAL TEF DUE TO OF WAS NONSIGNIFICANT (P GREATER THAN 0.2). IN RESPONSE TO 20% OF, ADAPTIVE THERMOGENESIS WAS MANIFESTED MAINLY THROUGH AN INCREASE IN THE RESTING METABOLIC RATE OF 4.9% (P LESS THAN 0.001). IN BOTH FEEDING, REGIMES, THE PERCENT TEF WAS HIGHER FOR BREAKFAST THAN FOR LUNCH (P LESS THAN 0.05). REGRESSION ANALYSIS OF TEF VERSUS CALORIE LOAD INDICATED A STABLE COMPONENT OF 42 KCAL WITH A 2% RATE OF INCREASE. YOGA EXERCISES WERE PERFORMED FROM 16.00 TO 17.00 DAILY. THE THERMIC EFFECT OF YOGA EXERCISES OBSERVED FROM 17.10 TO 18.30 WAS 21 KCAL AND PERSISTED BEYOND 90 MIN, INDICATING THE ROLE OF YOGA IN ENERGY METABOLISM.	1992	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
10  437  26 CARDIOVASCULAR AND METABOLIC EFFECTS OF INTENSIVE HATHA YOGA TRAINING IN MIDDLE-AGED AND OLDER WOMEN FROM NORTHERN MEXICO. BACKGROUND: HATHA YOGA (HY) CAN BE AN ALTERNATIVE TO IMPROVE PHYSICAL ACTIVITY IN MIDDLE-AGED AND OLDER WOMEN. HOWEVER, CONVENTIONAL HY (CHY) EXERCISING MAY NOT RESULT IN ENOUGH TRAINING STIMULUS TO IMPROVE CARDIOVASCULAR FITNESS. THE PURPOSE OF THIS STUDY WAS TO EVALUATE THE EFFECT OF AN INTENSIVE HY INTERVENTION (IHY) ON CARDIOVASCULAR RISK FACTORS IN MIDDLE-AGED AND OLDER WOMEN FROM NORTHERN MEXICO. MATERIALS AND METHODS: IN THIS PROSPECTIVE QUASIEXPERIMENTAL DESIGN, FOUR MIDDLE-AGED AND NINE OLDER CHY PRACTICING FEMALES (YOGINIS) WERE ENROLLED INTO AN 11-WEEK IHY PROGRAM CONSISTING OF 5 SESSIONS/WEEK FOR 90 MIN (55 SESSIONS). THE PROGRAM ADHERENCE, ASANA PERFORMANCE, AND WORK INTENSITY WERE ASSESSED ALONG THE INTERVENTION. ANTHROPOMETRIC [BODY MASS INDEX (BMI), % BODY FAT AND SIGMA SKIN FOLDS], CARDIOVASCULAR FITNESS [MAXIMAL EXPIRED AIR VOLUME (VE(MAX)), MAXIMAL O(2) CONSUMPTION (VO(2MAX)), MAXIMAL HEART RATE (HR(MAX)), SYSTOLIC (BPS) AND DIASTOLIC BLOOD PRESSURE (BPD)], BIOCHEMICAL [GLUCOSE, TRIACYLGLYCEROLS (TAG), TOTAL CHOLESTEROL (TC), HIGH-DENSITY LIPOPROTEIN CHOLESTEROL (HDL-C), AND LOW-DENSITY LIPOPROTEIN CHOLESTEROL (LDL-C)], AND DIETARY PARAMETERS WERE EVALUATED BEFORE AND AFTER IHY. RESULTS: DAILY CALORIC INTAKE (~1,916 KCAL/DAY), PROGRAM ADHERENCE (~85%), AND EXERCISING SKILLS (ASANA PERFORMANCE) WERE SIMILAR IN BOTH MIDDLE-AGED AND OLDER WOMEN. THE IHY PROGRAM DID NOT MODIFY ANY ANTHROPOMETRIC MEASUREMENTS. HOWEVER, IT INCREASED VO(2MAX) AND VE(MAX) AND HDL-C WHILE TAG AND LDL-C REMAINED STABLE IN BOTH MIDDLE-AGED AND OLDER GROUPS (P < 0.01). CONCLUSIONS: THE PROPOSED IHY PROGRAM IMPROVES DIFFERENT CARDIOVASCULAR RISK FACTORS (NAMELY VO(2MAX) AND HDL-C) IN MIDDLE-AGED AND OLDER WOMEN.	2009	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
11  642  41 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	
                                                                                                                                                                                                                                                                                                                 
12  630  31 DIFFERENCES IN ENERGY EXPENDITURE DURING HIGH-SPEED VERSUS STANDARD-SPEED YOGA: A RANDOMIZED SEQUENCE CROSSOVER TRIAL. OBJECTIVES: TO COMPARE ENERGY EXPENDITURE AND VOLUME OF OXYGEN CONSUMPTION AND CARBON DIOXIDE PRODUCTION DURING A HIGH-SPEED YOGA AND A STANDARD-SPEED YOGA PROGRAM. DESIGN: RANDOMIZED REPEATED MEASURES CONTROLLED TRIAL. SETTING: A LABORATORY OF NEUROMUSCULAR RESEARCH AND ACTIVE AGING. INTERVENTIONS: SUN-SALUTATION B WAS PERFORMED, FOR EIGHT MINUTES, AT A HIGH SPEED VERSUS AND A STANDARD-SPEED SEPARATELY WHILE OXYGEN CONSUMPTION WAS RECORDED. CALORIC EXPENDITURE WAS CALCULATED USING VOLUME OF OXYGEN CONSUMPTION AND CARBON DIOXIDE PRODUCTION. MAIN OUTCOME MEASURES: DIFFERENCE IN ENERGY EXPENDITURE (KCAL) OF HSY AND SSY. RESULTS: SIGNIFICANT DIFFERENCES WERE OBSERVED IN ENERGY EXPENDITURE BETWEEN YOGA SPEEDS WITH HIGH-SPEED YOGA PRODUCING SIGNIFICANTLY HIGHER ENERGY EXPENDITURE THAN STANDARD-SPEED YOGA (MD=18.55, SE=1.86, P<0.01). SIGNIFICANT DIFFERENCES WERE ALSO SEEN BETWEEN HIGH-SPEED AND STANDARD-SPEED YOGA FOR VOLUME OF OXYGEN CONSUMED AND CARBON DIOXIDE PRODUCED. CONCLUSIONS: HIGH-SPEED YOGA RESULTS IN A SIGNIFICANTLY GREATER CALORIC EXPENDITURE THAN STANDARD-SPEED YOGA. HIGH-SPEED YOGA MAY BE AN EFFECTIVE ALTERNATIVE PROGRAM FOR THOSE TARGETING CARDIOMETABOLIC MARKERS.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
13  515  32 COMPARING BETWEEN THE EFFECT OF ENERGY-RESTRICTED DIET AND YOGA ON THE RESTING METABOLIC RATE, ANTHROPOMETRIC INDICES, AND SERUM ADIPOKINE LEVELS IN OVERWEIGHT AND OBESE STAFF WOMEN. BACKGROUND: WEIGHT MANAGEMENT IS AN IMPORTANT STRATEGY TO PREVENT THE CONSEQUENCES OF OBESITY. THE AIM OF THE STUDY WAS TO COMPARE THE EFFECT OF YOGA PRACTICE AND ENERGY-RESTRICTED DIET ON RESTING METABOLIC RATE (RMR), ANTHROPOMETRIC INDICES, AND SERUM ADIPONECTIN AND LEPTIN IN OVERWEIGHT AND OBESE WOMEN. MATERIALS AND METHODS: OBESE OR OVERWEIGHT WOMEN WERE DIVIDED INTO TWO GROUPS: YOGA PRACTICING AND ENERGY-RESTRICTED DIET. EXERCISE TRIALS CONSISTED OF 60-MIN HATHA YOGA EQUAL TO 200 KILOCALORIES (KCAL) COMBINED WITH 300 KCAL RESTRICTION PER DAY, AND AN ENERGY-RESTRICTED DIET CONSISTED OF 500 KCAL RESTRICTION PER DAY. THE INTERVENTION PERIOD FOR BOTH THE GROUPS WAS 8 WEEKS. RMR, ANTHROPOMETRIC INDICES, AND SERUM ADIPONECTIN, LEPTIN, AND LIPID PROFILES WERE MEASURED AT BASELINE AND AT THE END OF THE STUDY. RESULTS: RMR WAS INCREASED IN YOGA BUT NOT IN THE DIET GROUP (P = 0.001). THE LEVEL OF ADIPONECTIN WAS INCREASED IN THE YOGA GROUP COMPARED WITH THE DIET (P = 0.035). THE CONCENTRATION OF HIGH-DENSITY LIPOPROTEIN-CHOLESTEROL WAS DECREASED IN THE DIET GROUP SIGNIFICANTLY BUT NOT IN YOGA (P = 0.006). THE LEVEL OF LEPTIN WAS DECREASED IN BOTH THE GROUPS (P = 0.001), AND THERE WERE NO SIGNIFICANT DIFFERENCES BETWEEN THE TWO GROUPS. CONCLUSION: THE FINDINGS OF THE STUDY DEMONSTRATED THE EFFECT OF YOGA PRACTICING ON RMR, AND SERUM ADIPONECTIN, IN OVERWEIGHT AND OBESE WOMEN. IT SEEMS YOGA PRACTICE WITH LESS ENERGY RESTRICTION COMPARED WITH A COMMON ENERGY RESTRICTION DIET AND IS MORE EFFECTIVE IN WEIGHT MANAGEMENT FOR THOSE WHO ARE IN WEIGHT LOSS PROGRAMS.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
14  804  12 EFFECT OF YOGA ON AEROBIC AND ANAEROBIC POWER OF MUSCLES. AEROBIC POWER (VO2 MAX) AND ANAEROBIC POWER WERE ESTIMATED IN MEDICAL STUDENTS BEFORE AND AFTER SIX WEEKS OF YOGIC TRAINING. A SIGNIFICANT INCREASE IN AEROBIC POWER AND A SIGNIFICANT DECREASE IN ANAEROBIC POWER WAS OBSERVED. THIS MAY BE DUE TO CONVERSION OF SOME OF THE FAST TWITCH (F.T.) MUSCLE FIBRES INTO SLOW TWITCH FIBRES (S.T.) DURING YOGIC TRAINING.	1991	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
15 2258  30 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	
                                                                     
16  425  22 CALCIUM LOSS IN SWEAT DOES NOT STIMULATE PTH RELEASE: A STUDY OF BIKRAM HOT YOGA. IT HAS BEEN HYPOTHESIZED THAT SWEAT LOSS DURING EXERCISE CAUSES A DISRUPTION IN CALCIUM HOMEOSTASIS THAT ACTIVATES BONE RESORPTION AND OVER TIME LEADS TO LOW BONE MINERAL DENSITY. THE PURPOSE OF THIS SMALL PILOT STUDY WAS TO DETERMINE WHETHER DERMAL CALCIUM LOSS FROM A BOUT OF EXCESSIVE SWEATING DURING LIGHT INTENSITY PHYSICAL ACTIVITY TRIGGERS AN INCREASE IN BIOMARKERS OF BONE RESORPTION. BIOCHEMICAL MARKERS RELATED TO BONE HOMEOSTASIS WERE MEASURED BEFORE AND AFTER A 90 MIN BIKRAM HOT YOGA PRACTICE PERFORMED IN A ROOM HEATED TO 105 DEGREES F WITH 40 % HUMIDITY. PARTICIPANTS WERE FIVE FEMALES WITH A MEAN AGE OF 47.4 +/- 4.7 YEARS. NUDE BODY WEIGHT, SERUM TOTAL CALCIUM (CA(2+)), FREE IONIZED CALCIUM, ALBUMIN, PARATHYROID HORMONE (PTH) AND CTX-I WERE MEASURED BEFORE AND AFTER A BIKRAM HOT YOGA PRACTICE. MEAN ESTIMATED SWEAT LOSS WAS 1.54 +/- 0.65 L, WHICH ELICITED A 1.9 +/- 0.9 % DECREASE IN PARTICIPANT'S BODY WEIGHT. MEAN CA(2+) CONCENTRATION IN SWEAT WAS 2.9 +/- 1.7 MG/DL AND THE ESTIMATED MEAN TOTAL CALCIUM LOST WAS 41.3 +/- 16.4 MG. SERUM IONIZED CA(2+) INCREASED FROM 4.76 +/- 0.29 MG/DL TO 5.35 +/- 0.36 MG/DL AFTER THE BIKRAM HOT YOGA PRACTICE (P = 0.0118). SERUM PTH DECREASED FROM PRE- 33.9 +/- 3.3 PG/ML TO POST- 29.9 +/- 2.1 PG/ML YOGA PRACTICE (P = 0.0015) WHEN ADJUSTED FOR HEMOCONCENTRATION (PTHADJ), IMPLYING A DECREASE IN PTH SECRETION. WE CONCLUDE THAT CALCIUM LOSS IN SWEAT DURING 90 MIN OF BIKRAM HOT YOGA DID NOT TRIGGER AN INCREASE IN PTH SECRETION AND DID NOT INITIATE BONE RESORPTION.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
17 1365  24 IMPACT OF 10-WEEKS OF YOGA PRACTICE ON FLEXIBILITY AND BALANCE OF COLLEGE ATHLETES. BACKGROUND: WITH CLEARER EVIDENCE OF ITS BENEFITS, COACHES, AND ATHLETES MAY BETTER SEE THAT YOGA HAS A ROLE IN OPTIMIZING PERFORMANCE. AIMS: TO DETERMINE THE IMPACT OF YOGA ON MALE COLLEGE ATHLETES (N = 26). METHODS: OVER A 10-WEEK PERIOD, A YOGA GROUP (YG) OF ATHLETES (N = 14) TOOK PART IN BIWEEKLY YOGA SESSIONS; WHILE A NONYOGA GROUP (NYG) OF ATHLETES (N = 12) TOOK PART IN NO ADDITIONAL YOGA ACTIVITY. PERFORMANCE MEASURES WERE OBTAINED IMMEDIATELY BEFORE AND AFTER THIS PERIOD. MEASUREMENTS OF FLEXIBILITY AND BALANCE, INCLUDED: SIT-REACH (SR), SHOULDER FLEXIBILITY (SF), AND STORK STAND (SS); DYNAMIC MEASUREMENTS CONSISTED OF JOINT ANGLES (JA) MEASURED DURING THE PERFORMANCE OF THREE DISTINCT YOGA POSITIONS (DOWNWARD DOG [DD]; RIGHT FOOT LUNGE [RFL]; CHAIR [C]). RESULTS: SIGNIFICANT GAINS WERE OBSERVED IN THE YG FOR FLEXIBILITY (SR, P = 0.01; SF, P = 0.03), AND BALANCE (SS, P = 0.05). NO SIGNIFICANT DIFFERENCES WERE OBSERVED IN THE NYG FOR FLEXIBILITY AND BALANCE. SIGNIFICANTLY, GREATER JA WERE OBSERVED IN THE YG FOR: RFL (DORSIFLEXION, L-ANKLE; P = 0.04), DD (EXTENSION, R-KNEE, P = 0.04; R-HIP; P = 0.01; FLEXION, R-SHOULDER; P = 0.01) AND C (FLEXION, R-KNEE; P = 0.01). SIGNIFICANT JA DIFFERENCES WERE OBSERVED IN THE NYG FOR: DD (FLEXION, R-KNEE, P = 0.01: R-HIP, P = 0.05; R-SHOULDER, P = 0.03) AND C (FLEXION R-KNEE, P = 0.01; EXTENSION, R-SHOULDER; P = 0.05). A BETWEEN GROUP COMPARISON REVEALED THE SIGNIFICANT DIFFERENCES FOR: RFL (L-ANKLE; P = 0.01), DD (R-KNEE, P = 0.01; R-HIP; P = 0.01), AND C (R-SHOULDER, P = 0.02). CONCLUSIONS: RESULTS SUGGEST THAT A REGULAR YOGA PRACTICE MAY INCREASE THE FLEXIBILITY AND BALANCE AS WELL AS WHOLE BODY MEASURES OF MALE COLLEGE ATHLETES AND THEREFORE, MAY ENHANCE ATHLETIC PERFORMANCES THAT REQUIRE THESE CHARACTERISTICS.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
18 1323  30 HEMODYNAMIC OBSERVATIONS OF TUMO YOGA PRACTITIONERS IN A HIMALAYAN ENVIRONMENT. BACKGROUND: FEW ATTEMPTS HAVE BEEN MADE TO EVALUATE THE PHYSIOLOGY OF TRADITIONAL EASTERN HEALTH PRACTICES. THE GOAL OF THIS STUDY WAS TO EVALUATE THE HEMODYNAMIC EFFECTS OF THE MYSTERIOUS BUDDHIST PRACTICE OF TUMO. TUMO IS A MEDITATIVE PRACTICE THAT PRODUCES INNER HEAT THROUGH THE ALLEGED CULTIVATION OF BODY ENERGY-CHANNELS. METHODS: THIS STUDY WAS PERFORMED BY MEMBERS OF AN INTERNATIONAL EXPEDITION TO THE HIMALAYAN MOUNTAINS IN THE REPUBLIC OF INDIA. THE STUDY WAS PERFORMED IN AN UNPOPULATED OUTDOOR MOUNTAINOUS AREA AT AN ALTITUDE OF 16,400 FT WITH AMBIENT TEMPERATURES BETWEEN -10 AND -15( DEGREES )C. TWO (2) COHORTS OF SUBJECTS WERE STUDIED: HEALTHY NON-YOGI VOLUNTEERS AND TUMO PRACTITIONERS. ALL OF THE SUBJECTS WERE STRIPPED DOWN TO THEIR UNDERCLOTHES AND EXPOSED TO THE SUBZERO ATMOSPHERIC TEMPERATURES FOR 5 MINUTES. THE VOLUNTEERS WERE THEN PASSIVELY REWARMED WHILE THE TUMO PRACTITIONERS PERFORMED TUMO FOR UP TO 10 MINUTES. BLOOD PRESSURE, HEART RATE, AND STROKE VOLUME INDEX (SVI) AND CARDIAC INDEX WERE MEASURED NONINVASIVELY USING A NICOM HEMODYNAMIC MONITOR, WHILE CAROTID BLOOD FLOW AND BIVENTRICULAR PERFORMANCE WERE DETERMINED ECHOCARDIOGRAPHICALLY AT EACH STAGE OF THE EXPERIMENT. THE TOTAL PERIPHERAL RESISTANCE INDEX (TPRI), LEFT VENTRICULAR EJECTION FRACTION (LVEF), AND TRICUSPID ANNULAR PLANE SYSTOLIC EXCURSION (TAPSE) WERE DETERMINED USING STANDARD FORMULA. RESULTS: FOURTEEN (14) SUBJECTS (SIX VOLUNTEERS AND EIGHT TUMO PRACTITIONERS) COMPLETED THE STUDY. THERE WAS ONE FEMALE SUBJECT IN EACH GROUP. WITH COLD EXPOSURE, THE SVI AND CAROTID BLOOD FLOW DECREASED WHILE THE TPRI INCREASED SIGNIFICANTLY IN BOTH GROUPS. IN THE VOLUNTEER GROUP, THESE CHANGES RETUNED TO BASELINE WITH REWARMING. FOLLOWING TUMO, THE CARDIAC INDEX (4.8+/-0.6 VERSUS 4.0+/-0.5 L/M(2); P<0.01), CAROTID BLOOD FLOW (445+/-127 VERSUS 325+/-100 ML/MIN/M(2), P<0.01), LVEF (68+/-5 VERSUS 64+/-7%; P<0.05) AND TAPSE (2.9+/-0.4 VERSUS 2.4+/-0.5 CM; P<0.01) WERE SIGNIFICANTLY HIGHER WHEN COMPARED WITH BASELINE, WHILE THE TPRI WAS SIGNIFICANTLY LOWER (1786+/-189 VERSUS 2173+/-281; P<0.01). CONCLUSIONS: TUMO WAS ASSOCIATED WITH A HYPERDYNAMIC VASODILATED STATE WITH INCREASED BIVENTRICULAR PERFORMANCE. WE POSTULATE THAT TUMO RESULTS IN A MASSIVE INCREASE IN SYMPATHETIC ACTIVITY WITH ACTIVATION OF BROWN ADIPOSE TISSUE AND MARKED HEAT PRODUCTION. THE INCREASED HEAT PRODUCTION MAY EXPLAIN THE PARADOXICAL VASODILATATION IN TUMO PRACTITIONERS EXPOSED TO SUBZERO TEMPERATURES.	2014	

19  416  27 BODY TEMPERATURE AND ENERGY EXPENDITURE DURING AND AFTER YOGA BREATHING PRACTICES TRADITIONALLY DESCRIBED AS COOLING. BACKGROUND IN TRADITIONAL YOGA TEXTS, SHEETALI AND SITKARI PRANAYAMAS ARE DESCRIBED AS COOLING. THE PRESENT STUDY WAS AIMED AT RECORDING THE SURFACE BODY TEMPERATURE, OXYGEN CONSUMED, AND CARBON DIOXIDE ELIMINATED BEFORE, DURING, AND AFTER PERFORMANCE OF SHEETALI AND SITKARI PRANAYAMAS. MATERIAL AND METHODS SEVENTEEN HEALTHY MALE VOLUNTEERS WITH AGES BETWEEN 19 TO 25 YEARS (AVERAGE AGE 20.7+/-1.8 YEARS) WERE ASSESSED IN 4 SESSIONS, VIZ. SHEETALI PRANAYAMA, SITKARI PRANAYAMA, BREATH AWARENESS AND QUIET LYING, ON 4 SEPARATE DAYS, IN RANDOM SEQUENCE. THE AXILLARY SURFACE BODY TEMPERATURE (TRUSCOPE II, SCHILLER, CHINA) AND METABOLIC VARIABLES (QUARK CPET, COSMED, ITALY) WERE RECORDED IN 3 PERIODS: BEFORE (5 MINUTES), DURING (18 MINUTES), AND AFTER (5 MINUTES), IN EACH OF THE 4 SESSIONS. THE HEAT INDEX WAS CALCULATED IN THE BEFORE AND AFTER PERIODS, BASED ON RECORDINGS OF AMBIENT TEMPERATURE AND HUMIDITY. DATA WERE ANALYZED USING SPSS (VERSION 24.0). RESULTS BODY TEMPERATURE INCREASED SIGNIFICANTLY DURING SHEETALI AND SITKARI (P<0.05, P<0.01; RESPECTIVELY) WHILE IT DECREASED AFTER BREATH AWARENESS AND QUIET LYING DOWN (P<0.01, P<0.001; RESPECTIVELY) WHEN COMPARED WITH RESPECTIVE POST-EXERCISE STATES. OXYGEN CONSUMPTION INCREASED BY 9.0% DURING SHEETALI (P<0.05) AND BY 7.6% DURING SITKARI (P<0.01) WHILE IT DECREASED SIGNIFICANTLY DURING (P<0.05) AND AFTER (P<0.01) QUIET LYING DOWN COMPARED TO RESPECTIVE PRE-EXERCISE STATES. CONCLUSIONS THE RESULTS DO NOT SUPPORT THE DESCRIPTION OF THESE YOGA BREATHING PRACTICES AS COOLING. THESE YOGA BREATHING PRACTICES MAY BE USED TO INDUCE A MILD HYPERMETABOLIC STATE.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
20 1706  17 PATTERN OF BREATHING AND VENTILATORY RESPONSE TO CO2 IN SUBJECTS PRACTICING HATHA-YOGA. WE STUDIED EIGHT BELGIAN SUBJECTS WELL ADVANCED IN THE PRACTICE OF HATHA-YOGA AND COMPARED THEM WITH EIGHT SEX-, AGE-, AND HEIGHT-MATCHED CONTROL SUBJECTS. PRACTICE OF YOGA (RANGE 4-12 YR) INVOLVES CONTROL OF POSTURE AND MANIPULATION OF BREATHING, INCLUDING SLOW NEAR-VITAL CAPACITY MANEUVERS ACCOMPANIED BY APNEA AT END INSPIRATION AND END EXPIRATION. AVERAGE VALUES FOR THE YOGA AND THE CONTROL GROUP (IN PARENTHESES) ARE AS FOLLOWS: VENTILATION (VE) 5.53 1 X MIN-1 (7.07); TIDAL VOLUME (VT), 1.03 LITERS (0.56); RATE OF BREATHING, 5.5 MIN-1 (13.4); END-TIDAL PCO2, 39.0 TORR (35.3). ALL DIFFERENCES ARE SIGNIFICANT (P LESS THAN 0.05). VENTILATORY RESPONSE TO CO2 (REBREATHING TECHNIQUE) WAS SIGNIFICANTLY LOWER IN THE YOGA GROUP (P LESS THAN 0.01). THE REGRESSION RELATING VE TO VT DURING REBREATHING OF CO2 WAS VE = 8.1 (VT - 0.23) FOR THE YOGA GROUP AND VE = 15.8 (VT - 0.16) FOR THE CONTROL GROUP (P LESS THAN 0.005). WE ATTRIBUTE THESE CHANGES TO CHRONIC MANIPULATION OF RESPIRATION.	1981