1 1029 116 EFFECTS OF YOGA EXERCISE ON SALIVARY BETA-DEFENSIN 2. PURPOSE: YOGA STRETCHING CAN BE DONE COMFORTABLY AND EASILY BY BEGINNERS AND OLDER ADULTS TO COMPENSATE FOR LACK OF EXERCISE OR POOR HEALTH MAINTENANCE. THE AIM OF THIS STUDY WAS TO DETERMINE THE EFFECT OF YOGA STRETCHING ON MUCOSAL IMMUNE FUNCTIONS, PRIMARILY HUMAN BETA-DEFENSIN 2 (HBD-2) IN SALIVA. METHODS: FIFTEEN HEALTHY ADULTS (AGE, 60.4 +/- 8.0 YEARS) PARTICIPATED IN THE STUDY. PARTICIPANTS RESTED FOR 90 MIN ON THE FIRST DAY AND PERFORMED YOGA FOR 90 MIN ON THE SECOND DAY. MEASUREMENTS WERE CARRIED OUT BEFORE AND AFTER REST OR YOGA. SALIVA SAMPLES WERE COLLECTED BY CHEWING A STERILE COTTON AT A FREQUENCY OF 60 CYCLES PER MIN. SALIVARY HBD-2 CONCENTRATION WAS MEASURED USING AN ENZYME-LINKED IMMUNOSORBENT ASSAY. RESULTS: HBD-2 CONCENTRATION AFTER YOGA STRETCHING (165.4 +/- 127.1 PG/ML) WAS SIGNIFICANTLY HIGHER THAN THAT BEFORE YOGA STRETCHING (84.1 +/- 63.4 PG/ML; P < 0.01). HBD-2 EXPRESSION RATE AFTER YOGA STRETCHING (232.8 +/- 192.9 PG/MIN) WAS SIGNIFICANTLY HIGHER THAN THAT BEFORE YOGA STRETCHING (110.7 +/- 96.8 PG/MIN; P < 0.01). HBD-2 CONCENTRATION (P < 0.05) AND HBD-2 EXPRESSION RATE (P < 0.01) AT POST ON THE SECOND DAY (YOGA) WAS SIGNIFICANTLY HIGHER THAN THAT ON THE FIRST DAY (REST). POMS SCORE OF ANGER-HOSTILITY WAS LOWER AFTER YOGA THAN BEFORE. CONCLUSIONS: YOGA STRETCHING FOR 90 MIN CAN INCREASE SALIVARY HBD-2 EXPRESSION IN OLDER ADULTS. THEREFORE, YOGA STRETCHING MIGHT BE USEFUL FOR OLDER ADULTS AND ATHLETES TO MAINTAIN THEIR HEALTH. 2013
2 385 62 BENEFICIAL EFFECTS OF YOGA STRETCHING ON SALIVARY STRESS HORMONES AND PARASYMPATHETIC NERVE ACTIVITY. THIS STUDY AIMED TO DETERMINE THE EFFECT OF YOGA STRETCHING ON SALIVARY STRESS HORMONES AND CARDIAC AUTONOMIC NERVOUS SYSTEM. TO OUR KNOWLEDGE, THIS STUDY IS THE FIRST TO INVESTIGATE CHANGES IN CARDIAC AUTONOMIC NERVOUS SYSTEM AFTER YOGA STRETCHING. IN THIS CROSSOVER DESIGN STUDY, 10 ADULT MEN (AGE, 26.3 +/- 2.5 YEARS) WITHOUT YOGA EXPERIENCE PARTICIPATED IN THE REST AND YOGA TRIALS FOR 90 MIN. MEASUREMENTS WERE CARRIED OUT BEFORE (PRE), IMMEDIATELY (POST), 60 MIN, AND 120 MIN AFTER REST OR YOGA STRETCHING. SALIVA SAMPLES WERE COLLECTED BY CHEWING A STERILE COTTON BALL AT A FREQUENCY OF 60 CYCLES PER MINUTE. SALIVARY CORTISOL AND TESTOSTERONE CONCENTRATIONS WERE MEASURED USING AN ENZYME-LINKED IMMUNOSORBENT ASSAY. WITH THE SUBJECTS IN THE SITTING POSITION, HEART RATE VARIABILITY WAS MEASURED USING PULSE ANALYZER PLUS FOR 150 SECONDS. AS REGARDS RATE CHANGES, SALIVARY TESTOSTERONE LEVEL TENDED TO INCREASE (P = 0.088), TESTOSTERONE/CORTISOL RATIO SIGNIFICANTLY INCREASED (P < 0.05), AND CORTISOL LEVEL SIGNIFICANTLY DECREASED (P < 0.05) AT 120 MIN AFTER YOGA STRETCHING. THE SQUARE ROOT OF THE MEAN-SQUARED DIFFERENCES OF SUCCESSIVE NORMAL-TO-NORMAL INTERVALS AND NATURAL LOGARITHM HIGH-FREQUENCY COMPONENT, WHICH ARE INDICATORS OF PARASYMPATHETIC NERVE ACTIVITY, INCREASED AT 60 MIN (P < 0.05) AND 120 MIN (P < 0.05) IN THE YOGA TRIAL, RESPECTIVELY. IN CONCLUSION, YOGA STRETCHING CAN ENHANCE PARASYMPATHETIC NERVE ACTIVITY AND IMPROVE STRESS HORMONES. THEREFORE, YOGA STRETCHING MAY BE USEFUL TO COMPENSATE FOR PHYSICAL INACTIVITY AND INCREASE LIFE EXPECTANCY IN THE GENERAL POPULATION. 2020
3 2778 41 YOGA STRETCHING FOR IMPROVING SALIVARY IMMUNE FUNCTION AND MENTAL STRESS IN MIDDLE-AGED AND OLDER ADULTS. PROTECTION AGAINST AGE-RELATED IMMUNE SUPPRESSION IS IMPORTANT IN ELDERLY INDIVIDUALS. THIS STUDY DETERMINED THE EFFECT OF YOGA ON MUCOSAL IMMUNE FUNCTION AND MENTAL STRESS. SALIVA SAMPLES WERE COLLECTED FROM 23 ADULT WOMEN (AGE: 60.4 +/- 10.4 YEARS) BEFORE AND AFTER 90 MINUTES OF YOGA STRETCHING OR REST TO MEASURE SECRETORY IMMUNOGLOBULIN A (SIGA), CORTISOL, AND TESTOSTERONE. THE SIGA CONCENTRATION AND SECRETION RATE WERE SIGNIFICANTLY HIGHER AFTER YOGA THAN BEFORE (P < .05). THE CORTISOL CONCENTRATION AND SECRETION RATE WERE LOWER AND TESTOSTERONE SECRETION RATE HIGHER AFTER YOGA (P < .05). YOGA STRETCHING CAN REDUCE STRESS AND ENHANCE MUCOSAL IMMUNE FUNCTION IN ELDERLY WOMEN. 2018
4 2905 31 [LONG-TERM EFFECTS OF BREATHING EXERCISES AND YOGA IN PATIENTS WITH BRONCHIAL ASTHMA]. TO COMPARE THE EFFECTS OF BREATHING EXERCISES (BE) OR YOGA (Y) ON THE COURSE OF BRONCHIAL ASTHMA WE STUDIED 36 SUBJECTS WITH A MILD DISEASE. THE PATIENTS WERE RANDOMLY DIVIDED INTO 3 GROUPS. 2 OF THEM PARTICIPATED IN A 3 WEEKS TRAINING PROGRAM OF BE OR Y WHILE THE THIRD GROUP RESTED WITHOUT ANY ADDITIONAL TREATMENT (CONTROL GROUP, C). AT THE END OF THE TRAINING PERIOD THE PATIENTS WERE ASKED TO PRACTISE BE OR Y ON THEIR OWN. DRUG THERAPY AND LUNG FUNCTION PARAMETERS BEFORE AND AFTER A BETA 2-AGONIST METERED DOSE INHALER (ALBUTEROL, ALB) WERE RECORDED PRIOR TO THE TRAINING PROGRAM AND IN 4 WEEKS INTERVALS FOR 4 MONTHS THEREAFTER. THE RESPONSE TO THE BETA 2-AGONIST WAS DOCUMENTED CONTINUOUSLY IN 28 PATIENTS. THE MENTAL STATE OF THE PATIENTS WAS ELUCIDATED BY QUESTIONNAIRES.--PRIOR TO THE STUDY A SIGNIFICANT EFFECT OF INHALED ALB ON THE FEV1 WAS SHOWN WITHOUT ANY SIGNIFICANT BETWEEN GROUP DIFFERENCES. BOTH, BE AND Y, CAUSED A SIGNIFICANT AMELIORATION OF THE MENTAL STATE BUT ONLY THE BE INDUCED A SIGNIFICANT IMPROVEMENT OF LUNG FUNCTION PARAMETERS COMPARED TO THE INDIVIDUAL BASELINE VALUES. THE FEV1 INCREASED SIGNIFICANTLY BY 356.3 +/- 146.2 ML (P < 0.05) AND THE VC BY 225.0 +/- 65.5 ML (P < 0.01). THESE LONG-TERM CHANGES WERE NOT SIGNIFICANTLY DIFFERENT FROM THE ACTUAL RESPONSE TO ALB. BE DECREASED THE RV SIGNIFICANTLY BY 306.3 +/- 111.6 ML (P < 0.05), AN EFFECT SIGNIFICANTLY HIGHER COMPARED TO THE BETA 2-AGONIST (P < 0.01). BE IN COMBINATION WITH ALB CAUSED AN ADDITIVE EFFECT.(ABSTRACT TRUNCATED AT 250 WORDS) 1994
5 1457 29 INFLUENCE OF YOGA AND AYURVEDA ON SELF-RATED SLEEP IN A GERIATRIC POPULATION. BACKGROUND AND OBJECTIVE: SLEEP IN OLDER PERSONS IS CHARACTERIZED BY DECREASED ABILITY TO STAY ASLEEP, RESULTING IN FRAGMENTED SLEEP AND REDUCED DAYTIME ALERTNESS. PHARMACOLOGICAL TREATMENT OF INSOMNIA IN OLDER PERSONS IS ASSOCIATED WITH HAZARDOUS SIDE EFFECTS. HENCE, THE PRESENT STUDY WAS DESIGNED TO COMPARE THE EFFECTS OF YOGA AND AYURVEDA ON THE SELF RATED SLEEP IN A GERIATRIC POPULATION. METHODS: OF THE 120 RESIDENTS FROM A HOME FOR THE AGED, 69 WERE STRATIFIED BASED ON AGE (FIVE YEAR INTERVALS) AND RANDOMLY ALLOCATED TO THREE GROUPS I.E., YOGA (PHYSICAL POSTURES, RELAXATION TECHNIQUES, VOLUNTARILY REGULATED BREATHING AND LECTURES ON YOGA PHILOSOPHY), AYURVEDA (A HERBAL PREPARATION), AND WAIT-LIST CONTROL (NO INTERVENTION). THE GROUPS WERE EVALUATED FOR SELF-ASSESSMENT OF SLEEP OVER A ONE WEEK PERIOD AT BASELINE, AND AFTER THREE AND SIX MONTHS OF THE RESPECTIVE INTERVENTIONS. RESULTS: THE YOGA GROUP SHOWED A SIGNIFICANT DECREASE IN THE TIME TAKEN TO FALL ASLEEP (APPROXIMATE GROUP AVERAGE DECREASE: 10 MIN, P<0.05), AN INCREASE IN THE TOTAL NUMBER OF HOURS SLEPT (APPROXIMATE GROUP AVERAGE INCREASE: 60 MIN, P< 0.05) AND IN THE FEELING OF BEING RESTED IN THE MORNING BASED ON A RATING SCALE (P<0.05) AFTER SIX MONTHS. THE OTHER GROUPS SHOWED NO SIGNIFICANT CHANGE. INTERPRETATION AND CONCLUSION: YOGA PRACTICE IMPROVED DIFFERENT ASPECTS OF SLEEP IN A GERIATRIC POPULATION. 2005
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
7 993 15 EFFECTS OF HEATED AND THERMONEUTRAL YOGA INTERVENTIONS ON ARTERIAL STIFFNESS IN MIDDLE-AGED ADULTS. THE STUDY INVESTIGATED THE EFFICACY OF 12 WEEKS OF HEATED AND THERMONEUTRAL BIKRAM YOGA IN REDUCING ARTERIAL STIFFNESS IN MIDDLE-AGED ADULTS. FIFTY-FOUR SEDENTARY ADULTS (AGES 40-60 YEARS) COMPLETED 12 WEEKS OF YOGA AT 40.5 DEGREES C (N = 21), YOGA AT 23 DEGREES C (N = 14) OR TIME CONTROL (N = 19). BRACHIAL-ANKLE PULSE WAVE VELOCITY (PWV) WAS NOT SIGNIFICANTLY ALTERED BY HOT OR THERMONEUTRAL YOGA INTERVENTIONS. 2018
8 821 28 EFFECT OF YOGA ON EXERCISE TOLERANCE IN NORMAL HEALTHY VOLUNTEERS. TWELVE NORMAL HEALTHY VOLUNTEERS (6 MALES AND 6 FEMALES) UNDERGOING YOGA TRAINING FOR 90 DAYS WERE STUDIED FOR THE EFFECT OF YOGA ON EXERCISE TOLERANCE. THEIR AGES RANGED FROM 18 TO 28 YEARS. THE VOLUNTEERS WERE TAUGHT ONLY PRANAYAMA FOR THE FIRST 20 DAYS AND LATER ON YOGIC ASANAS WERE ADDED. SUB-MAXIMAL EXERCISE TOLERANCE TEST WAS DONE ON A MOTORIZED TREADMILL BY USING BALKE'S MODIFIED PROTOCOL, INITIALLY, AFTER 20 DAYS (PHASE-I) AND AFTER 90 DAYS OF YOGA TRAINING (PHASE-II). PYRUVATE AND LACTATE IN VENOUS BLOOD AND BLOOD GASES IN CAPILLARY BLOOD WERE ESTIMATED IMMEDIATELY BEFORE AND AFTER THE EXERCISE. MINUTE VENTILATION AND OXYGEN CONSUMPTION WERE ESTIMATED BEFORE AND DURING THE TEST. POST EXERCISE BLOOD LACTATE WAS ELEVATED SIGNIFICANTLY DURING INITIAL AND PHASE-I, BUT NOT IN PHASE-II. THERE WAS SIGNIFICANT REDUCTION OF MINUTE VENTILATION AND OXYGEN CONSUMPTION ONLY IN MALES IN PHASE-I AND II AT THE TIME WHEN THE VOLUNTEERS REACHED THEIR 80% OF THE PREDICTED HEART RATE. FEMALE VOLUNTEERS WERE ABLE TO GO TO HIGHER LOADS OF EXERCISE IN PHASE-I AND II. 1986
9 525 27 COMPARISON OF EFFECTS OF YOGA & PHYSICAL EXERCISE IN ATHLETES. THE EFFECT OF PRANAYAMA A CONTROLLED BREATHING PRACTICE, ON EXERCISE TESTS WAS STUDIED IN ATHLETES IN TWO PHASES; SUB-MAXIMAL AND MAXIMAL EXERCISE TESTS. AT THE END OF PHASE I (ONE YEAR) BOTH THE GROUPS (CONTROL AND EXPERIMENTAL) ACHIEVED SIGNIFICANTLY HIGHER WORK RATE AND REDUCTION IN OXYGEN CONSUMPTION PER UNIT WORK. THERE WAS A SIGNIFICANT REDUCTION IN BLOOD LACTATE AND AN INCREASE IN P/L RATIO IN THE EXPERIMENTAL GROUP, AT REST. AT THE END OF PHASE II (TWO YEARS), THE OXYGEN CONSUMPTION PER UNIT WORK WAS FOUND TO BE SIGNIFICANTLY REDUCED AND THE WORK RATE SIGNIFICANTLY INCREASED IN THE EXPERIMENTAL GROUP. BLOOD LACTATE DECREASED SIGNIFICANTLY AT REST IN THE EXPERIMENTAL GROUP ONLY. PYRUVATE AND PYRUVATE-LACTATE RATIO INCREASED SIGNIFICANTLY IN BOTH THE GROUPS AFTER EXERCISE AND AT REST IN THE EXPERIMENTAL GROUP. THE RESULTS IN BOTH PHASES SHOWED THAT THE SUBJECTS WHO PRACTISED PRANAYAMA COULD ACHIEVE HIGHER WORK RATES WITH REDUCED OXYGEN CONSUMPTION PER UNIT WORK AND WITHOUT INCREASE IN BLOOD LACTATE LEVELS. THE BLOOD LACTATE LEVELS WERE SIGNIFICANTLY LOW AT REST. 1994
10 1298 33 HATHA YOGA AND VASCULAR FUNCTION: RESULTS FROM CROSS-SECTIONAL AND INTERVENTIONAL STUDIES. THE AIM OF THIS STUDY WAS TO DETERMINE THE EFFECT OF HATHA YOGA ON ARTERIAL ELASTICITY AND ENDOTHELIAL FUNCTION. FIRST, A CROSS-SECTIONAL STUDY WAS PERFORMED TO DETERMINE WHETHER YOGA PRACTITIONERS WOULD DEMONSTRATE GREATER ARTERIAL COMPLIANCE AND ENDOTHELIUM-DEPENDENT VASODILATION THAN THEIR SEDENTARY PEERS. SECOND, AN INTERVENTION STUDY INVOLVING 13 SEDENTARY MIDDLE-AGED AND OLDER ADULTS (51 +/- 7 YEARS) WAS PERFORMED TO DETERMINE WHETHER 12 WEEKS OF HATHA YOGA WOULD ELICIT INCREASES IN ARTERIAL COMPLIANCE AND ENDOTHELIAL FUNCTION. IN THE CROSS-SECTIONAL STUDY INVOLVING A TOTAL OF 34 SUBJECTS, THERE WERE NO GROUP DIFFERENCES IN BODY FATNESS, BLOOD LIPID AND LIPOPROTEIN CONCENTRATIONS, CAROTID ARTERY COMPLIANCE OR BRACHIAL ARTERY FLOW-MEDIATED DILATION (FMD). HEMOGLOBIN A1C WAS LOWER IN YOGA PRACTITIONERS THAN IN SEDENTARY ADULTS (P < 0.05). TOTAL CHOLESTEROL AND HEMOGLOBIN A1C DECREASED AFTER THE INTERVENTION (P < 0.05) WHILE CAROTID ARTERY COMPLIANCE AND BRACHIAL ARTERY FMD DID NOT CHANGE. THE RESULTS OF BOTH CROSS-SECTIONAL AND INTERVENTIONAL STUDIES INDICATE THAT REGULAR PRACTICE OF HATHA YOGA IS NOT ASSOCIATED WITH IMPROVEMENTS IN VASCULAR FUNCTIONS. 2013
11 344 27 ASSESSING DEPRESSION FOLLOWING TWO ANCIENT INDIAN INTERVENTIONS: EFFECTS OF YOGA AND AYURVEDA ON OLDER ADULTS IN A RESIDENTIAL HOME. THE EFFECTS OF YOGA AND AYURVEDA ON GERIATRIC DEPRESSION WERE EVALUATED IN 69 PERSONS OLDER THAN 60 WHO WERE LIVING IN A RESIDENTIAL HOME. PARTICIPANTS WERE STRATIFIED BY AGE AND GENDER AND RANDOMLY ALLOCATED TO THREE GROUPS: YOGA, AYURVEDA, OR WAIT-LIST CONTROL. THE 15-ITEM GERIATRIC DEPRESSION SCALE WAS USED TO ASSESS DEPRESSIVE SYMPTOMS PRIOR TO THE INTERVENTION, AND AFTER 3 MONTHS AND 6 MONTHS POST-INTERVENTION. PARTICIPATION IN ONE OF THE THREE GROUPS LASTED 24 WEEKS. THE YOGA PROGRAM (7 HOURS 30 MINUTES PER WEEK) INCLUDED PHYSICAL POSTURES, RELAXATION TECHNIQUES, REGULATED BREATHING, DEVOTIONAL SONGS, AND LECTURES. THE AYURVEDA GROUP RECEIVED AN HERBAL PREPARATION TWICE DAILY FOR THE WHOLE PERIOD. THE DEPRESSION SYMPTOM SCORES OF THE YOGA GROUP AT BOTH 3 AND 6 MONTHS DECREASED SIGNIFICANTLY, FROM A GROUP AVERAGE BASELINE OF 10.6 TO 8.1 AND 6.7, RESPECTIVELY (P < .001, PAIRED T-TEST). THE OTHER GROUPS SHOWED NO CHANGE. HENCE, AN INTEGRATED APPROACH OF YOGA INCLUDING THE MENTAL AND PHILOSOPHICAL ASPECTS IN ADDITION TO THE PHYSICAL PRACTICES WAS USEFUL FOR INSTITUTIONALIZED OLDER PERSONS. 2007
12 2076 32 THE EFFECT OF BIKRAM YOGA ON ENDOTHELIAL FUNCTION IN YOUNG AND MIDDLE-AGED AND OLDER ADULTS. THE PURPOSE OF THIS INVESTIGATION WAS TO DETERMINE IF BIKRAM YOGA, A STYLE OF HEATED HATHA YOGA, WOULD IMPROVE ENDOTHELIAL FUNCTION IN YOUNG AND MIDDLE-AGED AND OLDER, HEALTHY ADULTS. THIS TRIAL WAS PERFORMED IN 36 YOUNG (N = 17) AND MIDDLE-AGED AND OLDER ADULTS (N = 19) WHO COMPLETED 3 WEEKLY BIKRAM YOGA CLASSES FOR 8 WEEKS. HEIGHT, BODY WEIGHT AND BODY COMPOSITION WERE DETERMINED AND ENDOTHELIAL FUNCTION WAS MEASURED NONINVASIVELY USING BRACHIAL ARTERY FLOW-MEDIATED DILATION (FMD) BEFORE AND AFTER THE INTERVENTION. NO CHANGES IN BODY WEIGHT, BMI OR BODY FAT PERCENTAGE OCCURRED AS A RESULT OF THE INTERVENTION IN EITHER GROUP. BRACHIAL ARTERY FMD WAS SIGNIFICANTLY INCREASED IN MIDDLE-AGED AND OLDER (P < 0.05) BUT NOT IN YOUNG ADULTS AS A RESULT OF THE INTERVENTION. THE RESULTS DEMONSTRATE THAT A RELATIVELY SHORT-TERM BIKRAM YOGA PRACTICE MIGHT SIGNIFICANTLY IMPROVE VASCULAR ENDOTHELIAL FUNCTION IN MIDDLE-AGED AND OLDER ADULTS. WHILE APPARENTLY HEALTHY INDIVIDUALS IN THIS STUDY EXPERIENCED NO ADVERSE EVENTS, THOSE WITH PREEXISTING CONDITIONS SHOULD TAKE CAUTION AND CONSULT WITH A PHYSICIAN PRIOR TO ENGAGING IN THIS STYLE OF YOGA. 2017
13 1045 37 EFFECTS OF YOGA INTERVENTIONS PRACTISED IN HEATED AND THERMONEUTRAL CONDITIONS ON ENDOTHELIUM-DEPENDENT VASODILATATION: THE BIKRAM YOGA HEART STUDY. NEW FINDINGS: WHAT IS THE CENTRAL QUESTION OF THIS STUDY? DOES THE HEATED PRACTICE ENVIRONMENT ENHANCE THE EFFECTS OF BIKRAM YOGA ON ENDOTHELIUM-DEPENDENT VASODILATATION IN HEALTHY, MIDDLE-AGED ADULTS? WHAT IS THE MAIN FINDING AND ITS IMPORTANCE? THE PRIMARY FINDING FROM THIS INVESTIGATION IS THAT THE HATHA YOGA POSTURES IN THE BIKRAM YOGA SERIES PRODUCE SIMILAR ENHANCEMENTS IN ENDOTHELIUM-DEPENDENT VASODILATATION IN HEALTHY, MIDDLE-AGED ADULTS REGARDLESS OF ENVIRONMENTAL TEMPERATURE. THESE FINDINGS HIGHLIGHT THE EFFICACY OF YOGA POSTURES IN PRODUCING IMPROVEMENTS IN VASCULAR HEALTH AND DOWNPLAY THE NECESSITY OF THE HEATED PRACTICE ENVIRONMENT IN INDUCING VASCULAR ADAPTATIONS. ABSTRACT: WE HAVE PREVIOUSLY DOCUMENTED IMPROVEMENTS IN ENDOTHELIUM-DEPENDENT VASODILATATION WITH A BIKRAM (HOT) YOGA INTERVENTION IN MIDDLE-AGED ADULTS. AT PRESENT, THE EFFECT OF ENVIRONMENTAL TEMPERATURE IN HOT YOGA ON ENDOTHELIAL FUNCTION IS UNKNOWN. THE PURPOSE OF THIS INVESTIGATION WAS TO DETERMINE THE EFFECTS OF BIKRAM YOGA INTERVENTIONS PERFORMED IN HEATED OR THERMONEUTRAL CONDITIONS ON ENDOTHELIUM-DEPENDENT VASODILATATION. FIFTY-TWO SEDENTARY BUT APPARENTLY HEALTHY ADULTS AGED 40-60 YEARS WERE RANDOMLY ASSIGNED TO ONE OF THREE GROUPS: BIKRAM YOGA PRACTISED AT 40.5 DEGREES C (N = 19), BIKRAM YOGA PRACTISED AT 23 DEGREES C (N = 14) OR SEDENTARY TIME CONTROL (N = 19). THE YOGA INTERVENTIONS CONSISTED OF 90 MIN BIKRAM YOGA CLASSES THREE TIMES A WEEK FOR 12 WEEKS. ENDOTHELIUM-DEPENDENT VASODILATATION WAS MEASURED NON-INVASIVELY USING BRACHIAL ARTERY FLOW-MEDIATED DILATATION (FMD). BODY FAT PERCENTAGE DETERMINED VIA DUAL-ENERGY X-RAY ABSORPTIOMETRY WAS SIGNIFICANTLY LOWER IN THE HOT YOGA GROUP AFTER THE INTERVENTION THAN IN THE THERMONEUTRAL YOGA AND CONTROL CONDITIONS. BRACHIAL ARTERY FMD INCREASED (P < 0.05) IN THE THERMONEUTRAL YOGA GROUP AND TENDED TO INCREASE IN THE HOT YOGA GROUP (P = 0.056). NO CHANGES OCCURRED IN THE CONTROL GROUP. THERE WERE NO SIGNIFICANT DIFFERENCES IN FMD CHANGE SCORES BETWEEN GROUPS. WE CONCLUDE THAT BIKRAM YOGA PRACTISED IN THERMONEUTRAL CONDITIONS IMPROVED ENDOTHELIUM-DEPENDENT VASODILATATION IN HEALTHY, MIDDLE-AGED ADULTS. THESE NEW FINDINGS HIGHLIGHT THE EFFECTIVENESS OF HATHA YOGA POSTURES ALONE, IN THE ABSENCE OF A HEATED PRACTICE ENVIRONMENT, IN IMPROVING VASCULAR HEALTH AND ARE OF CLINICAL SIGNIFICANCE GIVEN THE INCREASED PROPENSITY FOR HEAT INTOLERANCE IN AGEING ADULTS. 2018
14 787 23 EFFECT OF YOGA BREATHING EXERCISES (PRANAYAMA) ON AIRWAY REACTIVITY IN SUBJECTS WITH ASTHMA. THE EFFECTS OF TWO PRANAYAMA YOGA BREATHING EXERCISES ON AIRWAY REACTIVITY, AIRWAY CALIBRE, SYMPTOM SCORES, AND MEDICATION USE IN PATIENTS WITH MILD ASTHMA WERE ASSESSED IN A RANDOMISED, DOUBLE-BLIND, PLACEBO-CONTROLLED, CROSSOVER TRIAL. AFTER BASELINE ASSESSMENT OVER 1 WEEK, 18 PATIENTS WITH MILD ASTHMA PRACTISED SLOW DEEP BREATHING FOR 15 MIN TWICE A DAY FOR TWO CONSECUTIVE 2-WEEK PERIODS. DURING THE ACTIVE PERIOD, SUBJECTS WERE ASKED TO BREATHE THROUGH A PINK CITY LUNG (PCL) EXERCISER--A DEVICE WHICH IMPOSES SLOWING OF BREATHING AND A 1:2 INSPIRATION:EXPIRATION DURATION RATIO EQUIVALENT TO PRANAYAMA BREATHING METHODS; DURING THE CONTROL PERIOD, SUBJECTS BREATHED THROUGH A MATCHED PLACEBO DEVICE. MEAN FORCED EXPIRATORY VOLUME IN 1 S (FEV1), PEAK EXPIRATORY FLOW RATE, SYMPTOM SCORE, AND INHALER USE OVER THE LAST 3 DAYS OF EACH TREATMENT PERIOD WERE ASSESSED IN COMPARISON WITH THE BASELINE ASSESSMENT PERIOD; ALL IMPROVED MORE WITH THE PCL EXERCISER THAN WITH THE PLACEBO DEVICE, BUT THE DIFFERENCES WERE NOT SIGNIFICANT. THERE WAS A STATISTICALLY SIGNIFICANT INCREASE IN THE DOSE OF HISTAMINE NEEDED TO PROVOKE A 20% REDUCTION IN FEV1 (PD20) DURING PRANAYAMA BREATHING BUT NOT WITH THE PLACEBO DEVICE. THE USEFULNESS OF CONTROLLED VENTILATION EXERCISES IN THE CONTROL OF ASTHMA SHOULD BE FURTHER INVESTIGATED. 1990
15 986 31 EFFECTS OF HATHA YOGA EXERCISE ON PLASMA MALONDIALDEHYDE CONCENTRATION AND SUPEROXIDE DISMUTASE ACTIVITY IN FEMALE PATIENTS WITH SHOULDER PAIN. [PURPOSE] THE PURPOSE OF THIS STUDY WAS TO ANALYZE THE EFFECTS OF HATHA YOGA EXERCISE ON PLASMA MALONDIALDEHYDE (MDA) CONCENTRATION AND SUPEROXIDE DISMUTASE (SOD) ACTIVITY IN FEMALE PATIENTS WITH SHOULDER PAIN. [SUBJECTS] SUBJECTS COMPRISED 20 FEMALE PATIENTS WITH SHOULDER PAIN. [METHODS] SUBJECTS WERE DIVIDED INTO 2 GROUPS: A HATHA YOGA EXERCISE GROUP (N = 10) AND A CONTROL GROUP THAT PERFORMED NO EXERCISE (N = 10). THE SUBJECTS' BODY COMPOSITION, PLASMA MALONDIALDEHYDE CONCENTRATIONS, AND SUPEROXIDE DISMUTASE ACTIVITIES WERE MEASURED BEFORE AND AFTER A 16-WEEK HATHA YOGA EXERCISE PROGRAM. [RESULTS] AFTER THE 16-WEEK HATHA YOGA EXERCISE PROGRAM, THE EXERCISE GROUP HAD SIGNIFICANTLY LOWER PLASMA MDA CONCENTRATIONS THAN THE CONTROL GROUP. IN ADDITION, THE EXERCISE GROUP HAD SIGNIFICANTLY HIGHER PLASMA SOD ACTIVITY THAN THE CONTROL GROUP. [CONCLUSIONS] HATHA YOGA EXERCISE IMPROVES FLEXIBILITY, MUSCLE TONE AND STRENGTH, BALANCE, AND JOINT FUNCTION. OUR FINDINGS INDICATE THAT REGULAR AND CONTINUOUS YOGA EXERCISE EFFECTIVELY IMPROVED BODY COMPOSITION, DECREASE PLASMA MDA CONCENTRATION, AND INCREASE PLASMA SOD ACTIVITY IN FEMALE PATIENTS WITH SHOULDER PAIN. 2015
16 884 30 EFFECT OF YOGA TRAINING ON ONE LEG STANDING AND FUNCTIONAL REACH TESTS IN OBESE INDIVIDUALS WITH POOR POSTURAL CONTROL. [PURPOSE] THE AIM OF THE PRESENT STUDY WAS TO INVESTIGATE THE EFFECT OF YOGA TRAINING ON STATIC AND DYNAMIC STANDING BALANCE IN OBESE INDIVIDUALS WITH POOR STANDING BALANCE. [SUBJECTS AND METHODS] SIXTEEN OBESE VOLUNTEERS WERE RANDOMLY ASSIGNED INTO YOGA AND CONTROL GROUPS. THE YOGA TRAINING PROGRAM WAS PERFORMED FOR 45 MINUTES PER DAY, 3 TIMES PER WEEK, FOR 4 WEEKS. STATIC AND DYNAMIC BALANCE WERE ASSESSED IN VOLUNTEERS WITH ONE LEG STANDING AND FUNCTIONAL REACH TESTS. OUTCOME MEASURES WERE TESTED BEFORE TRAINING AND AFTER A SINGLE WEEK OF TRAINING. TWO-WAY REPEATED MEASURE ANALYSIS OF VARIANCE WITH TUKEY'S HONESTLY SIGNIFICANT DIFFERENCE POST HOC STATISTICS WAS USED TO ANALYZE THE DATA. [RESULTS] OBESE INDIVIDUALS SHOWED SIGNIFICANTLY INCREASED STATIC STANDING BALANCE IN THE YOGA TRAINING GROUP, BUT THERE WAS NO SIGNIFICANT IMPROVEMENT OF STATIC OR DYNAMIC STANDING BALANCE IN THE CONTROL GROUP AFTER 4 WEEKS. IN THE YOGA GROUP, SIGNIFICANT INCREASES IN STATIC STANDING BALANCE WAS FOUND AFTER THE 2ND, 3RD, AND 4TH WEEKS. COMPARED WITH THE CONTROL GROUP, STATIC STANDING BALANCE IN THE YOGA GROUP WAS SIGNIFICANTLY DIFFERENT AFTER THE 2ND WEEK, AND DYNAMIC STANDING BALANCE WAS SIGNIFICANTLY DIFFERENT AFTER THE 4TH WEEK. [CONCLUSION] YOGA TRAINING WOULD BE BENEFICIAL FOR IMPROVING STANDING BALANCE IN OBESE INDIVIDUALS WITH POOR STANDING BALANCE. 2015
17 2816 28 YOGA TRAINING IMPROVES METABOLIC PARAMETERS IN OBESE BOYS. YOGA HAS BEEN KNOWN TO HAVE STIMULATORY OR INHIBITORY EFFECTS ON THE METABOLIC PARAMETERS AND TO BE UNCOMPLICATED THERAPY FOR OBESITY. THE PURPOSE OF THE PRESENT STUDY WAS TO TEST THE EFFECT OF AN 8-WEEK OF YOGA-ASANA TRAINING ON BODY COMPOSITION, LIPID PROFILE, AND INSULIN RESISTANCE (IR) IN OBESE ADOLESCENT BOYS. TWENTY VOLUNTEERS WITH BODY MASS INDEX (BMI) GREATER THAN THE 95TH PERCENTILE WERE RANDOMLY ASSIGNED TO YOGA (AGE 14.7+/-0.5 YEARS, N=10) AND CONTROL GROUPS (AGE 14.6+/-1.0 YEARS, N=10). THE YOGA GROUP PERFORMED EXERCISES THREE TIMES PER WEEK AT 40~60% OF HEART-RATE RESERVE (HRR) FOR 8 WEEKS. IR WAS DETERMINED WITH THE HOMEOSTASIS MODEL ASSESSMENT OF INSULIN RESISTANCE (HOMA-IR). AFTER YOGA TRAINING, BODY WEIGHT, BMI, FAT MASS (FM), AND BODY FAT % (BF %) WERE SIGNIFICANTLY DECREASED, AND FAT-FREE MASS AND BASAL METABOLIC RATE WERE SIGNIFICANTLY INCREASED THAN BASELINE VALUES. FM AND BF % WERE SIGNIFICANTLY IMPROVED IN THE YOGA GROUP COMPARED WITH THE CONTROL GROUP (P<0.05). TOTAL CHOLESTEROL (TC) WAS SIGNIFICANTLY DECREASED IN THE YOGA GROUP (P<0.01). HDL-CHOLESTEROL WAS DECREASED IN BOTH GROUPS (P<0.05). NO SIGNIFICANT CHANGES WERE OBSERVED BETWEEN OR WITHIN GROUPS FOR TRIGLYCERIDES, LDL-CHOLESTEROL, GLUCOSE, INSULIN, AND HOMA-IR. OUR FINDINGS SHOW THAT AN 8-WEEK OF YOGA TRAINING IMPROVES BODY COMPOSITION AND TC LEVELS IN OBESE ADOLESCENT BOYS, SUGGESTING THAT YOGA TRAINING MAY BE EFFECTIVE IN CONTROLLING SOME METABOLIC SYNDROME FACTORS IN OBESE ADOLESCENT BOYS. 2012
18 138 24 A PRELIMINARY REPORT ON THE ROLE OF YOGA ASANAS ON OXIDATIVE STRESS IN NON-INSULIN DEPENDENT DIABETES MELLITUS. NINETEEN SUBJECTS OF NON-INSULIN DEPENDENT DIABETES MELLITUS (NIDDM) BETWEEN THE AGE GROUP OF 30-60 YRS WERE STUDIED TO SEE THE EFFECT OF SPECIFIC YOGA ASANAS ON FASTING AND POSTPRANDIAL BLOOD GLUCOSE (FBG, PPG), SERUM MALONDIALDEHYDE (MDA) AND GLYCOSYLATED HEMOGLOBIN (HBA(1)) IN ADDITION TO DRUG TREATMENT AND DIET CONTROL. THE DURATION OF DIABETES RANGED FROM 1-10 YEARS. PATIENTS WITH RENAL, CARDIAC AND PROLIFERATIVE RETINAL DISEASES WERE EXCLUDED FROM THE STUDY. THE SAME PATIENTS SERVED AS THEIR OWN CONTROL. SUBJECTS WERE CALLED IN THE MORNING TO THE CARDIO-RESPIRATORY LABORATORY AND WERE GIVEN TRAINING BY A YOGA EXPERT. YOGA ASANAS INCLUDED SURYANAMSKAR, TADASAN, TRIKONASAN, PADMASAN, PRANAYAM, PASCHIMOTTANASAN, ARDHMATSYENDRASAN, PAVANMUKTHASAN, SARPASAN AND SHAVASAN. THE ASANAS WERE DONE EVERY DAY FOR 40 DAYS FOR 30-40 MIN. FBG, PPG, SERUM MDA AND HBA(1) WERE ESTIMATED BEFORE AND AFTER 40 DAYS OF YOGA ASANAS REGIMEN. SIGNIFICANT REDUCTION WAS SEEN IN FBG FROM 220 MG/DL TO 162 MG/DL, PPG FROM 311 MG/DL TO 255 MG/DL, MDA FROM 6 NMOL/L TO 3 NMOL/L AND HBA(1), FROM 8.8% TO 6.4%. SUBJECTS FELT BETTER AND WERE RELIEVED OF THEIR STRESSES AND HAD AN IMPROVEMENT IN THEIR DAY TO DAY PERFORMANCE. THE DECREASE WAS STATISTICALLY SIGNIFICANT (P<0.0001 FOR FBG AND PPG, P<0.001 FOR MDA AND FOR HBA(1)). 2001
19 1451 30 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
20 2499 29 YOGA AS STEADINESS TRAINING: EFFECTS ON MOTOR VARIABILITY IN YOUNG ADULTS. EXERCISE TRAINING PROGRAMS CAN INCREASE STRENGTH AND IMPROVE SUBMAXIMAL FORCE CONTROL, BUT THE EFFECTS OF YOGA AS AN ALTERNATIVE FORM OF STEADINESS TRAINING ARE NOT WELL DESCRIBED. THE PURPOSE WAS TO EXPLORE THE EFFECT OF A POPULAR TYPE OF YOGA (BIKRAM) ON STRENGTH, STEADINESS, AND BALANCE. YOUNG ADULTS PERFORMED YOGA TRAINING (N = 10, 29 +/- 6 YEARS, 24 YOGA SESSIONS IN 8 WEEKS) OR SERVED AS CONTROLS (N = 11, 26 +/- 7 YEARS). YOGA SESSIONS CONSISTED OF 1.5 HOURS OF SUPERVISED, STANDARDIZED POSTURES. MEASURES BEFORE AND AFTER TRAINING INCLUDED MAXIMUM VOLUNTARY CONTRACTION (MVC) FORCE OF THE ELBOW FLEXORS (EF) AND KNEE EXTENSORS (KE), STEADINESS OF ISOMETRIC EF AND KE CONTRACTIONS, STEADINESS OF CONCENTRIC (CON) AND ECCENTRIC (ECC) KE CONTRACTIONS, AND TIMED BALANCE. THE STANDARD DEVIATION (SD) AND COEFFICIENT OF VARIATION (CV, SD/MEAN FORCE) OF ISOMETRIC FORCE AND THE SD OF ACCELERATION DURING CON AND ECC CONTRACTIONS WERE MEASURED. AFTER YOGA TRAINING, MVC FORCE INCREASED 14% FOR KE (479 +/- 175 TO 544 +/- 187 N, P < 0.05) AND WAS UNCHANGED FOR THE EF MUSCLES (219 +/- 85 TO 230 +/- 72 N, P > 0.05). THE CV OF FORCE WAS UNCHANGED FOR EF (1.68 TO 1.73%, P > 0.05) BUT WAS REDUCED IN THE KE MUSCLES SIMILARLY FOR YOGA AND CONTROL GROUPS (2.04 TO 1.55%, P < 0.05). THE VARIABILITY OF CON AND ECC CONTRACTIONS WAS UNCHANGED. FOR THE YOGA GROUP, IMPROVEMENT IN KE STEADINESS WAS CORRELATED WITH PRETRAINING STEADINESS (R = -0.62 TO -0.84, P < 0.05); SUBJECTS WITH THE GREATEST KE FORCE FLUCTUATIONS BEFORE TRAINING EXPERIENCED THE GREATEST REDUCTIONS WITH TRAINING. PERCENT CHANGE IN BALANCE TIME FOR INDIVIDUAL YOGA SUBJECTS AVERAGED +228% (19.5 +/- 14 TO 34.3 +/- 18 SECONDS, P < 0.05), WITH NO CHANGE IN CONTROLS. FOR YOUNG ADULTS, A SHORT-TERM YOGA PROGRAM OF THIS TYPE CAN IMPROVE BALANCE SUBSTANTIALLY, PRODUCE MODEST IMPROVEMENTS IN LEG STRENGTH, AND IMPROVE LEG MUSCLE CONTROL FOR LESS-STEADY SUBJECTS. 2008