1 821 90 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 2 2153 19 THE EFFECTS OF SUDARSHAN KRIYA YOGA ON SOME PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS IN MILD HYPERTENSIVE PATIENTS. AN OPEN LABEL INTERVENTION STUDY WAS UNDERTAKEN ON 26 MILD HYPERTENSIVES AND 26 APPARENTLY HEALTHY ADULTS (30-60 Y), FOR THE EFFECT OF SUDARSHAN KRIYA YOGA PRACTICE FOR TWO MONTHS AS COMPLEMENTARY THERAPY. IN THE HYPERTENSIVES, THERE WAS A SIGNIFICANT DECREASE IN DIASTOLIC BLOOD PRESSURE (P < 0.01), SERUM UREA (P < 0.01) AND PLASMA MDA (MALONDIALDEHYDE ADDUCTS) AS OXIDATIVE STRESS MARKER (P < 0.05). OTHER PARAMETERS; VIZ.; PLASMA LEVELS OF CHOLESTEROL, TRIGLYCERIDES, GLUCOSE, DID NOT CHANGE SIGNIFICANTLY (P > 0.1). THE PATTERN OF CHANGE IN MOST OF THE STUDY PARAMETERS WAS SUCH THAT VALUES ABOVE NORMAL RANGE WERE LOWERED BUT VALUES WITHIN NORMAL RANGE WERE UNALTERED. THE ACTION OF YOGA ON DIASTOLIC BLOOD PRESSURE, MALONDIALDEHYDE ADDUCTS AND KIDNEY FUNCTION IN HYPERTENSIVES WAS OF COUNTERACTIVE NATURE AND FELT TO BE DISTINCTLY DIFFERENT THAN THE EFFECT OF DRUGS. 2011 3 1353 27 IMMEDIATE EFFECT OF SPECIFIC NOSTRIL MANIPULATING YOGA BREATHING PRACTICES ON AUTONOMIC AND RESPIRATORY VARIABLES. THE EFFECT OF RIGHT, LEFT, AND ALTERNATE NOSTRIL YOGA BREATHING (I.E., RNYB, LNYB, AND ANYB, RESPECTIVELY) WERE COMPARED WITH BREATH AWARENESS (BAW) AND NORMAL BREATHING (CTL). AUTONOMIC AND RESPIRATORY VARIABLES WERE STUDIED IN 21 MALE VOLUNTEERS WITH AGES BETWEEN 18 AND 45 YEARS AND EXPERIENCE IN THE YOGA BREATHING PRACTICES BETWEEN 3 AND 48 MONTHS. SUBJECTS WERE ASSESSED IN FIVE EXPERIMENTAL SESSIONS ON FIVE SEPARATE DAYS. THE SESSIONS WERE IN FIXED POSSIBLE SEQUENCES AND SUBJECTS WERE ASSIGNED TO A SEQUENCE RANDOMLY. EACH SESSION WAS FOR 40 MIN; 30 MIN FOR THE BREATHING PRACTICE, PRECEDED AND FOLLOWED BY 5 MIN OF QUIET SITTING. ASSESSMENTS INCLUDED HEART RATE VARIABILITY, SKIN CONDUCTANCE, FINGER PLETHYSMOGRAM AMPLITUDE, BREATH RATE, AND BLOOD PRESSURE. FOLLOWING RNYB THERE WAS A SIGNIFICANT INCREASE IN SYSTOLIC, DIASTOLIC AND MEAN PRESSURE. IN CONTRAST, THE SYSTOLIC AND DIASTOLIC PRESSURE DECREASED AFTER ANYB AND THE SYSTOLIC AND MEAN PRESSURE WERE LOWER AFTER LNYB. HENCE, UNILATERAL NOSTRIL YOGA BREATHING PRACTICES APPEAR TO INFLUENCE THE BLOOD PRESSURE IN DIFFERENT WAYS. THESE EFFECTS SUGGEST POSSIBLE THERAPEUTIC APPLICATIONS. 2008 4 438 25 CARDIOVASCULAR AND RESPIRATORY EFFECT OF YOGIC SLOW BREATHING IN THE YOGA BEGINNER: WHAT IS THE BEST APPROACH? SLOW BREATHING INCREASES CARDIAC-VAGAL BAROREFLEX SENSITIVITY (BRS), IMPROVES OXYGEN SATURATION, LOWERS BLOOD PRESSURE, AND REDUCES ANXIETY. WITHIN THE YOGA TRADITION SLOW BREATHING IS OFTEN PAIRED WITH A CONTRACTION OF THE GLOTTIS MUSCLES. THIS RESISTANCE BREATH "UJJAYI" IS PERFORMED AT VARIOUS RATES AND RATIOS OF INSPIRATION/EXPIRATION. TO TEST WHETHER UJJAYI HAD ADDITIONAL POSITIVE EFFECTS TO SLOW BREATHING, WE COMPARED BRS AND VENTILATORY CONTROL UNDER DIFFERENT BREATHING PATTERNS (EQUAL/UNEQUAL INSPIRATION/EXPIRATION AT 6 BREATH/MIN, WITH/WITHOUT UJJAYI), IN 17 YOGA-NAIVE YOUNG HEALTHY PARTICIPANTS. BRS INCREASED WITH SLOW BREATHING TECHNIQUES WITH OR WITHOUT EXPIRATORY UJJAYI (P < 0.05 OR HIGHER) EXCEPT WITH INSPIRATORY + EXPIRATORY UJJAYI. THE MAXIMAL INCREASE IN BRS AND DECREASE IN BLOOD PRESSURE WERE FOUND IN SLOW BREATHING WITH EQUAL INSPIRATION AND EXPIRATION. THIS CORRESPONDED WITH A SIGNIFICANT IMPROVEMENT IN OXYGEN SATURATION WITHOUT INCREASE IN HEART RATE AND VENTILATION. UJJAYI SHOWED SIMILAR INCREASE IN OXYGEN SATURATION BUT SLIGHTLY LESSER IMPROVEMENT IN BAROREFLEX SENSITIVITY WITH NO CHANGE IN BLOOD PRESSURE. THE SLOW BREATHING WITH EQUAL INSPIRATION AND EXPIRATION SEEMS THE BEST TECHNIQUE FOR IMPROVING BAROREFLEX SENSITIVITY IN YOGA-NAIVE SUBJECTS. THE EFFECTS OF UJJAYI SEEMS DEPENDENT ON INCREASED INTRATHORACIC PRESSURE THAT REQUIRES GREATER EFFORT THAN NORMAL SLOW BREATHING. 2013 5 411 28 BLOOD PRESSURE AND HEART RATE VARIABILITY DURING YOGA-BASED ALTERNATE NOSTRIL BREATHING PRACTICE AND BREATH AWARENESS. BACKGROUND: PREVIOUS RESEARCH HAS SHOWN A REDUCTION IN BLOOD PRESSURE (BP) IMMEDIATELY AFTER THE PRACTICE OF ALTERNATE NOSTRIL YOGA BREATHING (ANYB) IN NORMAL HEALTHY MALE VOLUNTEERS AND IN HYPERTENSIVE PATIENTS OF BOTH SEXES. THE BP DURING ANYB HAS NOT BEEN RECORDED. MATERIAL/METHODS: PARTICIPANTS WERE 26 MALE VOLUNTEERS (GROUP MEAN AGE +/-SD, 23.8+/-3.5 YEARS). WE ASSESSED (1) HEART RATE VARIABILITY, (2) NON-INVASIVE ARTERIAL BP, AND (3) RESPIRATION RATE, DURING (A) ANYB AND (B) BREATH AWARENESS (BAW) SESSIONS. EACH SESSION WAS 25 MINUTES. WE PERFORMED ASSESSMENTS AT 3 TIME POINTS: PRE (5 MINUTES), DURING (15 MINUTES; FOR ANYB OR BAW) AND POST (5 MINUTES). A NAIVE-TO-YOGA CONTROL GROUP (N=15 MALES, MEAN AGE +/-SD 26.1+/-4.0 YEARS) WERE ASSESSED WHILE SEATED QUIETLY FOR 25 MINUTES. RESULTS: DURING ANYB THERE WAS A SIGNIFICANT DECREASE (REPEATED MEASURES ANOVA) IN SYSTOLIC BP AND RESPIRATION RATE; WHILE RMSSD (THE SQUARE ROOT OF THE MEAN OF THE SUM OF SQUARES OF DIFFERENCES BETWEEN ADJACENT NN INTERVALS) AND NN50 (THE NUMBER OF INTERVAL DIFFERENCES OF SUCCESSIVE NORMAL TO NORMAL INTERVALS GREATER THAN 50 MS) SIGNIFICANTLY INCREASED. DURING BAW RESPIRATION RATE DECREASED. IN CONTRAST, RESPIRATION RATE INCREASED DURING THE CONTROL STATE. ANYB AND BAW WERE SIGNIFICANTLY DIFFERENT (2-FACTOR ANOVA) IN RMSSD AND RESPIRATION RATE. BAW AND CONTROL WERE DIFFERENT WITH RESPECT TO RESPIRATION RATE. CONCLUSIONS: THE RESULTS SUGGEST THAT VAGAL ACTIVITY INCREASED DURING AND AFTER ANYB, WHICH COULD HAVE CONTRIBUTED TO THE DECREASE IN BP AND CHANGES IN THE HRV. 2014 6 739 21 EFFECT OF RAJA YOGA MEDITATION ON THE LIPID PROFILE OF POST-MENOPAUSAL WOMEN. BACKGROUND: CORONARY ARTERY DISEASE IS AN IMPORTANT CAUSE OF DEATH AND DISABILITY AMONG OLDER WOMEN. MODIFICATION IN LIPID PROFILE LOWERS THE RISK OF CORONARY ARTERY DISEASE. IT IS CLAIMED THAT YOGA AND TRANSCENDENTAL MEDITATION HAVE A CHOLESTEROL LOWERING EFFECT. THIS STUDY WAS DESIGNED TO ASSESS THE EFFECT OF RAJA YOGA MEDITATION OF BRAHMAKUMARIS WHICH IS VERY SIMPLE TO PRACTICE, ON SERUM LIPIDS IN NORMAL INDIAN WOMEN. METHODS AND RESULTS: 49 NORMAL FEMALE VOLUNTEERS WERE THE SUBJECTS. THEY WERE DIVIDED INTO PRE-MENOPAUSAL (N=23) AND POST-MENOPAUSAL (N=26) GROUPS. THEY WERE FURTHER DIVIDED INTO NON-MEDITATORS (WHO HAD NEVER DONE ANY KIND OF MEDITATION), SHORT-TERM MEDITATORS (MEDITATING FOR 6 MONTHS TO 5 YEARS) AND LONG-TERM MEDITATORS (MEDITATING FOR MORE THAN 5 YEARS). LIPID PROFILE WAS ASSESSED USING THEIR RESPECTIVE REAGENT SETS. SERUM CHOLESTEROL, TRIGLYCERIDE AND LOW-DENSITY LIPOPROTEIN-CHOLESTEROL IN NONMEDITATORS WERE SIGNIFICANTLY MORE IN POST-MENOPAUSAL WOMEN AS COMPARED TO PRE-MENOPAUSAL WOMEN. SERUM CHOLESTEROL AND LOW DENSITY LIPOPROTEIN-CHOLESTEROL WERE SIGNIFICANTLY LOWERED IN BOTH SHORT AND LONG TERM MEDITATORS AS COMPARED TO NON-MEDITATORS IN POST-MENOPAUSAL WOMEN. NO SIGNIFICANT DIFFERENCE WAS OBSERVED IN LIPID PROFILE IN PRE-MENOPAUSAL WOMEN. CONCLUSION: RAJA YOGA MEDITATION LOWERED SERUM CHOLESTEROL AND LOW-DENSITY LIPOPROTEIN-CHOLESTEROL IN POST-MENOPAUSAL WOMEN THUS REDUCING THE RISK OF CORONARY ARTERY DISEASE IN THEM. 2008 7 525 29 COMPARISON OF EFFECTS OF YOGA & PHYSICAL EXERCISE IN ATHLETES. THE EFFECT OF PRANAYAMA A CONTROLLED BREATHING PRACTICE, ON EXERCISE TESTS WAS STUDIED IN ATHLETES IN TWO PHASES; SUB-MAXIMAL AND MAXIMAL EXERCISE TESTS. AT THE END OF PHASE I (ONE YEAR) BOTH THE GROUPS (CONTROL AND EXPERIMENTAL) ACHIEVED SIGNIFICANTLY HIGHER WORK RATE AND REDUCTION IN OXYGEN CONSUMPTION PER UNIT WORK. THERE WAS A SIGNIFICANT REDUCTION IN BLOOD LACTATE AND AN INCREASE IN P/L RATIO IN THE EXPERIMENTAL GROUP, AT REST. AT THE END OF PHASE II (TWO YEARS), THE OXYGEN CONSUMPTION PER UNIT WORK WAS FOUND TO BE SIGNIFICANTLY REDUCED AND THE WORK RATE SIGNIFICANTLY INCREASED IN THE EXPERIMENTAL GROUP. BLOOD LACTATE DECREASED SIGNIFICANTLY AT REST IN THE EXPERIMENTAL GROUP ONLY. PYRUVATE AND PYRUVATE-LACTATE RATIO INCREASED SIGNIFICANTLY IN BOTH THE GROUPS AFTER EXERCISE AND AT REST IN THE EXPERIMENTAL GROUP. THE RESULTS IN BOTH PHASES SHOWED THAT THE SUBJECTS WHO PRACTISED PRANAYAMA COULD ACHIEVE HIGHER WORK RATES WITH REDUCED OXYGEN CONSUMPTION PER UNIT WORK AND WITHOUT INCREASE IN BLOOD LACTATE LEVELS. THE BLOOD LACTATE LEVELS WERE SIGNIFICANTLY LOW AT REST. 1994 8 1354 21 IMMEDIATE EFFECT OF THREE YOGA BREATHING TECHNIQUES ON PERFORMANCE ON A LETTER-CANCELLATION TASK. THE EFFECTS OF THREE YOGA BREATHING PRACTICES WERE EVALUATED ON PERFORMANCE ON A LETTER-CANCELLATION TASK WHICH IS A LEFT-HEMISPHERE DOMINANT TASK. THE THREE YOGA BREATHING PRACTICES (RIGHT, LEFT, AND ALTERNATE NOSTRIL BREATHING) WERE SELECTED BECAUSE UNILATERAL FORCED NOSTRIL BREATHING STIMULATES THE CONTRALATERAL HEMISPHERE. THERE WERE 20 MALE VOLUNTEERS WHOSE AGES RANGED FROM 20 TO 45 YEARS (M AGE=28.4 YR., SD=5.7). ALL SUBJECTS WERE ASSESSED BEFORE AND AFTER FOUR SESSIONS, I.E., RIGHT NOSTRIL YOGA BREATHING, LEFT NOSTRIL YOGA BREATHING, ALTERNATE NOSTRIL YOGA BREATHING, AND BREATH AWARENESS AS A CONTROL. THE LETTER-CANCELLATION TASK SCORES WERE SIGNIFICANTLY IMPROVED, I.E., THERE WERE FEWER ERRORS FOLLOWING RIGHT AND ALTERNATE NOSTRIL YOGA BREATHING (WILCOXON PAIRED SIGNED-RANKS TEST). THE IMPROVED PERFORMANCE MAY BE RELATED TO THE ENHANCEMENT OF CONTRALATERAL HEMISPHERE FUNCTION FOUND WITH SELECTIVE NOSTRIL BREATHING. 2007 9 369 14 AUTONOMIC FUNCTIONS IN RAJA-YOGA MEDITATORS. STRESS, AN INEVITABLE AND CONSTANT FEATURE THROUGHOUT THE LIFETIME, INDUCES AUTONOMIC DYSFUNCTIONS, FOR WHICH MEDITATION IS CONSIDERED TO BE AN ANTIDOTE. SO THE CASE CONTROL STUDY WAS PLANNED INCLUDING 50 RAJA-YOGA MEDITATORS PRACTICING MEDITATION FOR 5 YEARS AND 50 AGE MATCHED NON-MEDITATORS. AUTONOMIC FUNCTION TESTS WERE PERFORMED AND RESULTS WERE COMPARED USING THE STUDENT-T TEST. MEAN VALUES OF RESTING HR, SBP AND DBP WERE LESS IN MEDITATORS. GALVANIC SKIN RESPONSE IN MEDITATORS WAS SIGNIFICANTLY MORE (P < 0.001). MEAN INCREASE BP RESPONSE TO HAND GRIP TEST AND COLD PRESSOR TEST WAS SIGNIFICANTLY LESS IN MEDITATORS THAN NON-MEDITATORS (P < 0.001). STANDING: LYING RATIO, VALSALVA RATIO, INSPIRATION: EXPIRATION RATIO AND 30:15 RATIOS WERE SIGNIFICANTLY INCREASED IN MEDITATORS THAN NON-MEDITATORS. FROM THE RESULTS, THERE WAS SHIFTING OF THE AUTONOMIC BALANCE TO PARASYMPATHETIC SIDE IN RAJA-YOGA MEDITATORS, WHICH SUGGESTS ITS UTILITY TO COMBAT THE ILL EFFECTS OF STRESS. 2015 10 751 20 EFFECT OF SHORT TERM YOGA PRACTICE ON VENTILATORY FUNCTION TESTS. TWENTYFIVE NORMAL MALE VOLUNTEERS UNDERGOING A TEN WEEKS COURSE IN THE PRACTICE OF YOGA HAVE BEEN STUDIED BY SOME PARAMETERS OF VENTILATORY FUNCTIONS TESTS. THE OBSERVATIONS RECORDED AT THE END OF TEN WEEKS OF THE COURSE HAVE SHOWN IMPROVED VENTILATORY FUNCTIONS IN THE FORM OF LOWERED RESPIRATORY RATE, INCREASED FORCED VITAL CAPACITY, FEV1, MAXIMUM BREATHING CAPACITY AND BREATH HOLDING TIME, WHILE TIDAL VOLUME AND %FEV1, DID NOT REVEAL ANY SIGNIFICANT CHANGE. THUS, A COMBINED PRACTICE OF YOGA SEEMS TO BE BENEFICIAL ON RESPIRATORY EFFICIENCY. 1988 11 410 22 BLOOD LIPIDS AND ANTHROPOMETRIC PARAMETERS IN HEALTHY SUBJECTS PRACTICING YOGA OR RESISTANCE TRAINING IN LEISURE TIME. WHAT MATTERS: TYPE OR INTENSITY OF PHYSICAL ACTIVITY? AIM: THE AIM OF THE PRESENT STUDY WAS TO ASSESS EFFECTS OF YOGA AND RESISTANCE TRAININGS ON BLOOD LIPIDS AND ANTHROPOMETRIC PARAMETERS IN PEOPLE WITHOUT CARDIOVASCULAR DISEASES. MATERIALS AND METHODS: CROSS-SECTIONAL STUDY, WHICH INCLUDED 167 SUBJECTS, WAS CONDUCTED. SUBJECTS REGULARLY PRACTICING YOGA OR RESISTANCE TRAINING NOT LESS THAN 2 TIMES A WEEK FOR A PERIOD MORE THAN ONE YEAR WERE INCLUDED IN THE STUDY. YOGA TRAININGS WERE DEFINED AS YOGA ASANAS AND RESISTANCE TRAININGS WERE DEFINED AS ANY EXERCISE THAT CAUSES THE MUSCLES TO CONTRACT AGAINST AN EXTERNAL RESISTANCE. ANTHROPOMETRIC PARAMETERS, BLOOD LIPIDS AND GLUCOSE, URIC ACID WERE ASSESSED. WE USED INTERNATIONAL QUESTIONNAIRE ON LONG PHYSICAL ACTIVITY TO ASSESS PHYSICAL ACTIVITY AND SEDENTARY TIME. SPSS 17.0 WAS USED TO PERFORM STATISTICAL ANALYSIS. RESULTS: THERE WERE NO SIGNIFICANT DIFFERENCES BETWEEN "YOGA TRAINING" AND "RESISTANCE TRAINING" GROUPS IN GENERAL PHYSICAL ACTIVITY, MODERATE PHYSICAL ACTIVITY AND SITTING TIME IN THE WHOLE GROUP. HDL-CHOLESTEROL WAS SIGNIFICANTLY HIGHER IN "YOGA TRAINING" COMPARED TO "RESISTANCE TRAINING" GROUP AND CONTROL GROUP (1,65+/-0,37 MMOL/L; 1,43+/-0,21 MMOL/L AND 1,34+/-0,22, PYOGA-RESISTANCE TRAINING=0,001; PYOGA-CONTROL=0,0001; PRESISTANCE TRAINING-CONTROL= P2-3=0,037). LDL CHOLESTEROL WAS THE LOWEST IN SUBJECTS THAT HAD THE HIGHEST LEVEL OF VIGOROUS PHYSICAL ACTIVITY. CONCLUSIONS: PEOPLE PRACTICING YOGA AND RESISTANCE TRAINING HAD MORE FAVORABLE BLOOD LIPID PROFILE AND ANTHROPOMETRIC PARAMETERS THAN CONTROL GROUP. "YOGA TRAINING" HAD MORE PRONOUNCED POSITIVE EFFECT ON HDL CHOLESTEROL. LEVEL OF LDL CHOLESTEROL WAS MORE LIKELY TO BE ASSOCIATED WITH INTENSITY OF PHYSICAL ACTIVITY THAN WITH TYPE OF PHYSICAL ACTIVITY. 2021 12 1451 33 INFLUENCE OF INTENSIVE YOGA TRAINING ON PHYSIOLOGICAL CHANGES IN 6 ADULT WOMEN: A CASE REPORT. THE SHORT-TERM EFFECTS OF 4 WEEKS OF INTENSIVE YOGA PRACTICE ON PHYSIOLOGICAL RESPONSES IN SIX HEALTHY ADULT FEMALE VOLUNTEERS WERE MEASURED USING THE MAXIMAL EXERCISE TREADMILL TEST. YOGA PRACTICE INVOLVED DAILY MORNING AND EVENING SESSIONS OF 90 MINUTES EACH. PRE- AND POST-YOGA EXERCISE PERFORMANCE WAS COMPARED. MAXIMAL WORK OUTPUT (WMAX) FOR THE GROUP INCREASED BY 21%, WITH A SIGNIFICANTLY REDUCED LEVEL OF OXYGEN CONSUMPTION PER UNIT WORK BUT WITHOUT A CONCOMITANT SIGNIFICANT CHANGE IN HEART RATE. AFTER INTENSIVE YOGA TRAINING, AT 154 WMIN(-1) (CORRESPONDING TO WMAX OF THE PRE-YOGA MAXIMAL EXERCISE TEST) PARTICIPANTS COULD EXERCISE MORE COMFORTABLY, WITH A SIGNIFICANTLY LOWER HEART RATE (P < 0.05), REDUCED MINUTE VENTILATION (P < 0.05), REDUCED OXYGEN CONSUMPTION PER UNIT WORK (P < 0.05), AND A SIGNIFICANTLY LOWER RESPIRATORY QUOTIENT (P < 0.05). THE IMPLICATIONS FOR THE EFFECT OF INTENSIVE YOGA ON CARDIORESPIRATORY EFFICIENCY ARE DISCUSSED, WITH THE SUGGESTION THAT YOGA HAS SOME TRANSPARENTLY DIFFERENT QUANTIFIABLE PHYSIOLOGICAL EFFECTS TO OTHER EXERCISES. 1997 13 814 21 EFFECT OF YOGA ON CARDIOVASCULAR SYSTEM IN SUBJECTS ABOVE 40 YEARS. THIS STUDY WAS CONDUCTED TO EXAMINE THE EFFECT OF YOGA ON CARDIOVASCULAR FUNCTION IN SUBJECTS ABOVE 40 YRS OF AGE. PULSE RATE, SYSTOLIC AND DIASTOLIC BLOOD PRESSURE AND VALSALVA RATIO WERE STUDIED IN 50 CONTROL SUBJECTS (NOT DOING ANY TYPE OF PHYSICAL EXERCISE) AND 50 STUDY SUBJECTS WHO HAD BEEN PRACTICING YOGA FOR 5 YEARS. FROM THE STUDY IT WAS OBSERVED THAT SIGNIFICANT REDUCTION IN THE PULSE RATE OCCURS IN SUBJECTS PRACTICING YOGA (P<0.001). THE DIFFERENCE IN THE MEAN VALUES OF SYSTOLIC AND DIASTOLIC BLOOD PRESSURE BETWEEN STUDY GROUP AND CONTROL GROUP WAS ALSO STATISTICALLY SIGNIFICANT (P<0.01 AND P<0.001 RESPECTIVELY). THE SYSTOLIC AND DIASTOLIC BLOOD PRESSURE SHOWED SIGNIFICANT POSITIVE CORRELATION WITH AGE IN THE STUDY GROUP (R1 SYSTOLIC= 0.631 AND R1 DIASTOLIC = 0.610) AS WELL AS IN THE CONTROL GROUP (R2 SYSTOLIC = 0.981 AND R2 DIASTOLIC = 0.864). THE SIGNIFICANCE OF DIFFERENCE BETWEEN CORRELATION COEFFICIENT OF BOTH THE GROUPS WAS ALSO TESTED WITH THE USE OF Z TRANSFORMATION AND THE DIFFERENCE WAS SIGNIFICANT (Z SYSTOLIC= 4.041 AND Z DIASTOLIC= 2.901). VALSALVA RATIO WAS ALSO FOUND TO BE SIGNIFICANTLY HIGHER IN YOGA PRACTITIONERS THAN IN CONTROLS (P<0.001). OUR RESULTS INDICATE THAT YOGA REDUCES THE AGE RELATED DETERIORATION IN CARDIOVASCULAR FUNCTIONS. 2003 14 788 24 EFFECT OF YOGA COMBINED WITH AEROBIC EXERCISE INTERVENTION ON MORPHOLOGICAL AND BLOOD LIPID INDICATORS IN FEMALE COLLEGE STUDENTS. BACKGROUND: REGULAR AEROBIC EXERCISE CAN EFFECTIVELY INCREASE MICROVASCULAR FUNCTION IN SKELETAL MUSCLE AND PROMOTE THE OXIDATION OF FATTY ACIDS. HOWEVER, WHETHER THE EFFECT OF AEROBIC EXERCISE INTERVENTION IS AFFECTED BY FAT CONTENT IS WORTH OF FURTHER EXPLORATION. IN THIS STUDY, BY MEANS OF YOGA COMBINED WITH EXERCISE, THE AUTHORS EXPLORED THE EFFECT OF AEROBIC EXERCISE ON MORPHOLOGY AND BLOOD LIPIDS IN FEMALE COLLEGE STUDENTS. METHODS: A TOTAL OF 81 FEMALE COLLEGE STUDENTS WHO VOLUNTARILY PARTICIPATED IN THIS STUDY WERE ENROLLED BY BODY MASS INDEX (BMI) OBTAINED FROM THE PHYSICAL EXAMINATION WHEN ENTERING THE SCHOOL. THE PARTICIPANTS WERE ASSIGNED TO NORMAL (BMI: 20.98+/-1.52 KG/M2, N.=29), OVERWEIGHT (BMI: 25.57+/-1.34 KG/M2, N.=27), AND OBESITY (BMI: 28.46+/-2.36 KG/M2, N.=25) GROUPS BY BMI, AND ALL OF THEM COMPLETED A 12-WEEK YOGA COMBINED WITH AEROBIC EXERCISE TRAINING PROGRAM. RELEVANT MORPHOLOGICAL SUCH AS BODY WEIGHT, BODY HEIGHT, WAIST CIRCUMFERENCE, HIP CIRCUMFERENCE, ETC. AND BLOOD LIPID INDICATORS SUCH AS LOW-DENSITY LIPOPROTEIN CHOLESTEROL (LDL-C), HIGH-DENSITY LIPOPROTEIN CHOLESTEROL (HDL-C), TOTAL CHOLESTEROL (TC) AND TRIGLYCERIDE (TG) WERE MEASURED BEFORE AND AFTER TRAINING. ONE-WAY ANVOA, PAIRED-SAMPLE T-TEST WERE USED IN THIS STUDY. RESULTS: AFTER TRAINING PROGRAM, THE RESULTS INDICATED THAT: 1) THE HIP, BODY WEIGHT, BMI AND BODY FAT PERCENTAGE IN ALL THREE GROUPS SIGNIFICANTLY DECREASED; 2) WAIST CIRCUMFERENCE IN NORMAL AND OBESITY GROUPS HAD A SIGNIFICANT CHANGE THAN THAT IN OVERWEIGHT GROUP, HIP CIRCUMFERENCE AND WAIST-TO-HIP RATIO (WHR) IN OVERWEIGHT GROUP WERE BETTER THAN THOSE IN NORMAL AND OVERWEIGHT GROUPS; THE DECREASE IN BMI IN OVERWEIGHT AND OBESITY GROUPS WAS SIGNIFICANTLY GREATER THAN THAT IN NORMAL GROUP, AND THE WEIGHT LOSS AND DECREASED BODY FAT PERCENTAGE IN OBESITY GROUP WERE THE HIGHEST, FOLLOWED BY OVERWEIGHT GROUP, AND THE SMALLEST IN NORMAL GROUP; 3) IN ALL THREE GROUPS, HDL-C SIGNIFICANTLY INCREASED, LDL-C, TC/HDL-C, TG/HDL-C AND LDL-C/HDL-C SIGNIFICANTLY DECREASED, TC AND TG SIGNIFICANTLY DECREASED IN OBESITY GROUP; AND 4) TC/HDL-C AND TG/HDL-C IN OBESITY GROUP WERE SIGNIFICANTLY HIGHER THAN THOSE IN NORMAL AND OVERWEIGHT GROUPS, WHILE CHANGE IN TC AND TG WERE THE HIGHEST IN OBESITY GROUP, THE SECOND THE OVERWEIGHT GROUP, AND THE LOWEST IN NORMAL GROUP. CONCLUSIONS: TWELVE-WEEK YOGA COMBINED WITH AEROBIC EXERCISE TRAINING HAS A SIGNIFICANT POSITIVE EFFECT ON MORPHOLOGICAL AND BLOOD LIPID INDICATORS IN FEMALE COLLEGE STUDENTS. THE YOGA COMBINED WITH AEROBIC EXERCISE TRAINING CAN BE RECOMMENDED FOR YOUNG WOMEN WITH OVERWEIGHT AND OBESITY POPULATION. 2020 15 658 24 EFFECT OF 1-WEEK YOGA-BASED RESIDENTIAL PROGRAM ON CARDIOVASCULAR VARIABLES OF HYPERTENSIVE PATIENTS: A COMPARATIVE STUDY. INTRODUCTION: HYPERTENSION (HTN) IS AN IMPORTANT PUBLIC HEALTH CONCERN AND A LEADING CAUSE OF MORBIDITY AND MORTALITY WORLDWIDE. YOGA IS A FORM OF MIND-BODY MEDICINE SHOWN TO BE EFFECTIVE IN CONTROLLING BLOOD PRESSURE (BP) AND REDUCES CARDIAC RISK FACTORS IN HTN. INTEGRATED APPROACH OF YOGA THERAPY (IAYT) IS A RESIDENTIAL YOGA-BASED LIFESTYLE INTERVENTION PROVEN TO BE BENEFICIAL IN SEVERAL HEALTH CONDITIONS. AIM: TO STUDY THE EFFICACY OF 1 WEEK OF RESIDENTIAL IAYT INTERVENTION ON CARDIOVASCULAR PARAMETERS IN HYPERTENSIVE PATIENTS. METHODOLOGY: TWENTY HYPERTENSIVE INDIVIDUALS (7 FEMALES) WITHIN AGE RANGE BETWEEN 30 AND 60 YEARS (AVERAGE; 46.62 +/- 9.9 YEARS), WHO UNDERWENT 1 WEEK OF IAYT TREATMENT FOR HTN, WERE COMPARED WITH AGE- GENDER-MATCHED NON-IAYT GROUP (5 FEMALES; AVERAGE AGE; 47.08 +/- 9.69 YEARS) IN TERMS OF SYSTOLIC BP (SBP), DIASTOLIC BP (DBP), MEAN ARTERIAL PRESSURE (MAP), CARDIAC OUTPUT (CO), STROKE VOLUME (SV), BAROREFLEX SENSITIVITY (BRS), AND TOTAL PERIPHERAL VASCULAR RESISTANCE (TPVR), IAYT PROGRAM CONSISTED OF SESSIONS OF ASANAS, BREATHING PRACTICES, MEDITATION AND RELAXATION TECHNIQUES, LOW SALT, LOW-CALORIE DIET, DEVOTIONAL SESSION, AND COUNSELING. INDIVIDUALS IN NON-IAYT GROUP FOLLOWED THEIR NORMAL ROUTINE. ALL THE VARIABLES WERE ASSESSED BEFORE AND AFTER ONE WEEK. DATA WERE ANALYZED USING SPSS VERSION 16. RM-ANOVA WAS APPLIED TO ASSESS WITHIN GROUP AND BETWEEN GROUP CHANGES AFTER INTERVENTION. RESULTS: THERE WAS A SIGNIFICANT IMPROVEMENT IN SBP (P = 0.004), DBP (P = 0.008), MAP (0.03), BRS (P < 0.001), AND TPVR (P = 0.007) IN IAYT, GROUP WHEREAS IN CONTROL GROUP, WE DID NOT FIND SIGNIFICANT DIFFERENCE IN ANY OF THE VARIABLES. BETWEEN-GROUP COMPARISON SHOWED A SIGNIFICANT IMPROVEMENT IN SBP (P = 0.038), BRS (P = 0.034), AND TPVR (P = 0.015) IN IAYT GROUP AS COMPARED TO NON-IAYT GROUP. CONCLUSION: ONE-WEEK IAYT INTERVENTION SHOWED AN IMPROVEMENT IN BAROREFLEX SENSITIVITY, SYSTOLIC BP, AND TOTAL PERIPHERAL VASCULAR RESISTANCE IN HYPERTENSIVE PATIENTS. HOWEVER, FURTHER RANDOMIZED CONTROL TRIALS NEED TO BE PERFORMED TO CONFIRM THE PRESENT FINDINGS. 2018 16 1322 25 HEMODYNAMIC AND PRESSOR RESPONSES TO COMBINATION OF YOGA AND BLOOD FLOW RESTRICTION. A COMBINATION OF YOGA AND BLOOD FLOW RESTRICTION, EACH OF WHICH ELICITS MARKED PRESSOR RESPONSES, MAY FURTHER INCREASE BLOOD PRESSURE AND MYOCARDIAL OXYGEN DEMAND. TO DETERMINE THE IMPACT OF A COMBINATION OF YOGA AND BLOOD FLOW RESTRICTION ON HEMODYNAMIC RESPONSES, TWENTY YOUNG HEALTHY PARTICIPANTS PERFORMED 20 YOGA POSES WITH/WITHOUT BLOOD FLOW RESTRICTION BANDS PLACED ON BOTH LEGS. AT BASELINE, THERE WERE NO SIGNIFICANT DIFFERENCES IN ANY OF THE VARIABLES BETWEEN THE BLOOD FLOW RESTRICTION AND NON-BLOOD FLOW RESTRICTION CONDITIONS. BLOOD PRESSURE AND HEART RATE INCREASED IN RESPONSE TO THE VARIOUS YOGA POSES (P<0.01) BUT WERE NOT DIFFERENT BETWEEN THE BLOOD FLOW RESTRICTION AND NON-BLOOD FLOW RESTRICTION CONDITIONS. RATE-PRESSURE PRODUCTS, AN INDEX OF MYOCARDIAL OXYGEN DEMAND, INCREASED SIGNIFICANTLY DURING YOGA EXERCISES WITH NO SIGNIFICANT DIFFERENCES BETWEEN THE TWO CONDITIONS. RATING OF PERCEIVED EXERTION WAS NOT DIFFERENT BETWEEN THE CONDITIONS. BLOOD LACTATE CONCENTRATION WAS SIGNIFICANTLY GREATER AFTER PERFORMING YOGA WITH BLOOD FLOW RESTRICTION BANDS (P=0.007). CARDIO-ANKLE VASCULAR INDEX, AN INDEX OF ARTERIAL STIFFNESS, DECREASED SIMILARLY AFTER YOGA EXERCISE IN BOTH CONDITIONS WHILE FLOW-MEDIATED DILATION REMAINED UNCHANGED. IN CONCLUSION, THE USE OF LOWER BODY BLOOD FLOW RESTRICTION BANDS IN COMBINATION WITH YOGA DID NOT RESULT IN ADDITIVE OR SYNERGISTIC HEMODYNAMIC AND PRESSOR RESPONSES. 2020 17 492 20 COGNITIVE BEHAVIOR EVALUATION BASED ON PHYSIOLOGICAL PARAMETERS AMONG YOUNG HEALTHY SUBJECTS WITH YOGA AS INTERVENTION. OBJECTIVE: TO INVESTIGATE THE EFFECT OF YOGA PRACTICE ON COGNITIVE SKILLS, AUTONOMIC NERVOUS SYSTEM, AND HEART RATE VARIABILITY BY ANALYZING PHYSIOLOGICAL PARAMETERS. METHODS: THE STUDY WAS CONDUCTED ON 30 NORMAL YOUNG HEALTHY ENGINEERING STUDENTS. THEY WERE RANDOMLY SELECTED INTO TWO GROUPS: YOGA GROUP AND CONTROL GROUP. THE YOGA GROUP PRACTICED YOGA ONE AND HALF HOUR PER DAY FOR SIX DAYS IN A WEEK, FOR A PERIOD OF FIVE MONTHS. RESULTS: THE YOGA PRACTISING GROUP SHOWED INCREASED ALPHA, BETA, AND DELTA EEG BAND POWERS AND SIGNIFICANT REDUCTION IN THETA AND GAMMA BAND POWERS. THE INCREASED ALPHA AND BETA POWER CAN REPRESENT ENHANCED COGNITIVE FUNCTIONS SUCH AS MEMORY AND CONCENTRATION, AND THAT OF DELTA SIGNIFIES SYNCHRONIZATION OF BRAIN ACTIVITY. THE HEART RATE INDEX THETA/ALPHA DECREASED, NEURAL ACTIVITY BETA/THETA INCREASED, ATTENTION RESOURCE INDEX BETA/(ALPHA + THETA) INCREASED, EXECUTIVE LOAD INDEX (DELTA + THETA)/ALPHA DECREASED, AND THE RATIO (DELTA + THETA)/(ALPHA + BETA) DECREASED. THE YOGA PRACTICE GROUP SHOWED IMPROVEMENT IN HEART RATE VARIABILITY, INCREASED SDNN/RMSSD, AND REDUCTION IN LF/HF RATIO. CONCLUSION: YOGA PRACTISING GROUP SHOWED SIGNIFICANT IMPROVEMENT IN VARIOUS COGNITIVE FUNCTIONS, SUCH AS PERFORMANCE ENHANCEMENT, NEURAL ACTIVITY, ATTENTION, AND EXECUTIVE FUNCTION. IT ALSO RESULTED IN INCREASE IN THE HEART RATE VARIABILITY, PARASYMPATHETIC NERVOUS SYSTEM ACTIVITY, AND BALANCED AUTONOMIC NERVOUS SYSTEM REACTIVITY. 2015 18 1473 19 INSULIN SENSITIVITY AND CARDIAC AUTONOMIC FUNCTION IN YOUNG MALE PRACTITIONERS OF YOGA. BACKGROUND: WHILE YOGA IS THOUGHT TO REDUCE THE RISK OF CHRONIC NON-COMMUNICABLE DISEASES SUCH AS DIABETES, THERE ARE NO STUDIES ON INSULIN SENSITIVITY IN LONG TERM PRACTITIONERS OF YOGA. WE ASSESSED INSULIN SENSITIVITY AND CARDIAC AUTONOMIC FUNCTION IN LONG TERM PRACTITIONERS OF YOGA. METHODS: FIFTEEN HEALTHY, YOUNG, MALE PRACTITIONERS OF YOGA WERE COMPARED WITH 15 YOUNG, HEALTHY MALES WHO DID NOT PRACTICE YOGA MATCHED FOR BODY-MASS INDEX. FASTING INSULIN SENSITIVITY WAS MEASURED IN THE FASTING STATE BY THE HYPERINSULINAEMIC-EUGLYCAEMIC CLAMP. RESULTS: THERE WERE NO SIGNIFICANT DIFFERENCES BETWEEN THE GROUPS IN THEIR ANTHROPOMETRY OR BODY COMPOSITION. HOWEVER, THE FASTING PLASMA INSULIN WAS SIGNIFICANTLY LOWER IN THE YOGA GROUP. THE YOGA GROUP WAS ALSO MORE INSULIN SENSITIVE (YOGA 7.82 [2.29] V. CONTROL 4.86 [11.97] (MG/[KG.MIN])/(MICROU/ML), P < 0.001). WHILE THE BODY WEIGHT AND WAIST CIRCUMFERENCE WERE NEGATIVELY CORRELATED WITH GLUCOSE DISPOSAL RATE IN THE CONTROLS, THERE WERE NO SIMILAR CORRELATIONS IN THE YOGA GROUP. THE YOGA GROUP HAD SIGNIFICANTLY HIGHER LOW-FREQUENCY POWER AND LOWER NORMALIZED HIGH-FREQUENCY POWER. CONCLUSION: LONG TERM YOGA PRACTICE (FOR 1 YEAR OR MORE) IS ASSOCIATED WITH INCREASED INSULIN SENSITIVITY AND ATTENUATES THE NEGATIVE RELATIONSHIP BETWEEN BODY WEIGHT OR WAIST CIRCUMFERENCE AND INSULIN SENSITIVITY. 2008 19 2823 26 YOGA VERSUS AEROBIC ACTIVITY: EFFECTS ON SPIROMETRY RESULTS AND MAXIMAL INSPIRATORY PRESSURE. OBJECTIVE: TO CLARIFY WHETHER, IN HEALTHY INDIVIDUALS, PRACTICING YOGA CAN MODIFY MAXIMAL INSPIRATORY PRESSURE AND SPIROMETRIC INDICES WHEN COMPARED WITH THE PRACTICE OF AEROBIC EXERCISE. MEYHODS: A CONTROLLED CLINICAL TRIAL. A TOTAL OF 31 HEALTHY VOLUNTEERS WERE ALLOCATED TO PRACTICE AEROBIC EXERCISE (N = 15) OR TO PRACTICE YOGA (N = 16). THOSE IN THE FIRST GROUP SERVED AS CONTROLS AND ENGAGED IN AEROBIC EXERCISE FOR 45-60 MINUTES, TWICE A WEEK FOR THREE MONTHS. THOSE IN THE SECOND GROUP PRACTICED SELECTED YOGIC TECHNIQUES, ALSO IN SESSIONS OF 45-60 MINUTES, TWICE A WEEK FOR THREE MONTHS. FORCED VITAL CAPACITY, FORCED EXPIRATORY VOLUME IN ONE SECOND AND MAXIMAL INSPIRATORY PRESSURE WERE MEASURED BEFORE AND AFTER THE THREE MONTHS OF TRAINING. RESULTS: NO SIGNIFICANT ALTERATIONS WERE SEEN IN THE SPIROMETRIC INDICES. A SLIGHT, ALTHOUGH NOT SIGNIFICANT, IMPROVEMENT IN MAXIMAL INSPIRATORY PRESSURE WAS SEEN IN BOTH GROUPS. HOWEVER, THERE WAS A SIGNIFICANT DIFFERENCE, SEEN IN BOTH GENDERS, BETWEEN THE ABSOLUTE DELTA (FINAL VALUE MINUS BASELINE VALUE) OF MAXIMAL INSPIRATORY PRESSURE FOR THE GROUP PRACTICING YOGA AND THAT OBTAINED FOR THE GROUP ENGAGING IN AEROBIC EXERCISE (MALES: 19.5 CM H2O VERSUS 2.8 CM H2O, P = 0.05; FEMALES: 20 CM H2O VERSUS 3.9 CM H2O, P = 0.01). CONCLUSION: NEITHER YOGA NOR AEROBIC EXERCISE PROVIDED A STATISTICALLY SIGNIFICANT IMPROVEMENT IN MAXIMAL INSPIRATORY PRESSURE AFTER THREE MONTHS. HOWEVER, THE ABSOLUTE VARIATION IN MAXIMAL INSPIRATORY PRESSURE WAS GREATER AMONG THOSE PRACTICING YOGA. 2006 20 1691 19 OXYGEN CONSUMPTION AND RESPIRATION DURING AND AFTER TWO YOGA RELAXATION TECHNIQUES. CYCLIC MEDITATION (CM) IS A TECHNIQUE WHICH COMBINES "STIMULATING" AND "CALMING" PRACTICES, BASED ON A STATEMENT IN ANCIENT YOGA TEXTS SUGGESTING THAT SUCH A COMBINATION MAY BE ESPECIALLY HELPFUL TO REACH A STATE OF MENTAL EQUILIBRIUM. THE OXYGEN CONSUMPTION, BREATH RATE AND BREATH VOLUME OF 50 MALE VOLUNTEERS (GROUP MEAN AGE+/-SD, 27+/-6.3 YEARS) WERE ASSESSED BEFORE, DURING, AND AFTER SESSIONS OF CM AND SESSIONS OF SUPINE REST IN THE CORPSE POSTURE (SHAVASANA, SH). THE SESSIONS WERE ONE DAY APART AND THE ORDER WAS ALTERNATED. THE OXYGEN CONSUMPTION, BREATH RATE AND BREATH VOLUME INCREASED DURING THE "STIMULATING" PRACTICES OF CM, RETURNED TO THE BASELINE DURING THE "CALMING" PRACTICES, AND THE OXYGEN CONSUMPTION DECREASED BY 19.3 PERCENT BELOW BASELINE VALUES AFTER CM. DURING THE SH SESSION THE OXYGEN CONSUMPTION, BREATH RATE AND BREATH VOLUME REDUCED; HOWEVER THE DECREASE IN OXYGEN CONSUMPTION AFTER SH WAS LESS THAN AFTER CM (I.E., 4.8 PERCENT). THE RESULTS SUPPORT THE IDEA THAT A COMBINATION OF YOGA POSTURES WITH SUPINE REST (IN CM) REDUCES THE OXYGEN CONSUMPTION MORE THAN RESTING SUPINE ALONE DOES. 2006