1 985 152 EFFECTS OF HATHA YOGA AND OMKAR MEDITATION ON CARDIORESPIRATORY PERFORMANCE, PSYCHOLOGIC PROFILE, AND MELATONIN SECRETION. OBJECTIVES: TO EVALUATE EFFECTS OF HATHA YOGA AND OMKAR MEDITATION ON CARDIORESPIRATORY PERFORMANCE, PSYCHOLOGIC PROFILE, AND MELATONIN SECRETION. SUBJECTS AND METHODS: THIRTY HEALTHY MEN IN THE AGE GROUP OF 25-35 YEARS VOLUNTEERED FOR THE STUDY. THEY WERE RANDOMLY DIVIDED IN TWO GROUPS OF 15 EACH. GROUP 1 SUBJECTS SERVED AS CONTROLS AND PERFORMED BODY FLEXIBILITY EXERCISES FOR 40 MINUTES AND SLOW RUNNING FOR 20 MINUTES DURING MORNING HOURS AND PLAYED GAMES FOR 60 MINUTES DURING EVENING HOURS DAILY FOR 3 MONTHS. GROUP 2 SUBJECTS PRACTICED SELECTED YOGIC ASANAS (POSTURES) FOR 45 MINUTES AND PRANAYAMA FOR 15 MINUTES DURING THE MORNING, WHEREAS DURING THE EVENING HOURS THESE SUBJECTS PERFORMED PREPARATORY YOGIC POSTURES FOR 15 MINUTES, PRANAYAMA FOR 15 MINUTES, AND MEDITATION FOR 30 MINUTES DAILY, FOR 3 MONTHS. ORTHOSTATIC TOLERANCE, HEART RATE, BLOOD PRESSURE, RESPIRATORY RATE, DYNAMIC LUNG FUNCTION (SUCH AS FORCED VITAL CAPACITY, FORCED EXPIRATORY VOLUME IN 1 SECOND, FORCED EXPIRATORY VOLUME PERCENTAGE, PEAK EXPIRATORY FLOW RATE, AND MAXIMUM VOLUNTARY VENTILATION), AND PSYCHOLOGIC PROFILE WERE MEASURED BEFORE AND AFTER 3 MONTHS OF YOGIC PRACTICES. SERIAL BLOOD SAMPLES WERE DRAWN AT VARIOUS TIME INTERVALS TO STUDY EFFECTS OF THESE YOGIC PRACTICES AND OMKAR MEDITATION ON MELATONIN LEVELS. RESULTS: YOGIC PRACTICES FOR 3 MONTHS RESULTED IN AN IMPROVEMENT IN CARDIORESPIRATORY PERFORMANCE AND PSYCHOLOGIC PROFILE. THE PLASMA MELATONIN ALSO SHOWED AN INCREASE AFTER THREE MONTHS OF YOGIC PRACTICES. THE SYSTOLIC BLOOD PRESSURE, DIASTOLIC BLOOD PRESSURE, MEAN ARTERIAL PRESSURE, AND ORTHOSTATIC TOLERANCE DID NOT SHOW ANY SIGNIFICANT CORRELATION WITH PLASMA MELATONIN. HOWEVER, THE MAXIMUM NIGHT TIME MELATONIN LEVELS IN YOGA GROUP SHOWED A SIGNIFICANT CORRELATION (R = 0.71, P < 0.05) WITH WELL-BEING SCORE. CONCLUSION: THESE OBSERVATIONS SUGGEST THAT YOGIC PRACTICES CAN BE USED AS PSYCHOPHYSIOLOGIC STIMULI TO INCREASE ENDOGENOUS SECRETION OF MELATONIN, WHICH, IN TURN, MIGHT BE RESPONSIBLE FOR IMPROVED SENSE OF WELL-BEING. 2004 2 300 36 AN ASSESSMENT OF A SEQUENCE OF YOGA EXERCISES TO PATIENTS WITH ARTERIAL HYPERTENSION. THIS QUASI-EXPERIMENTAL STUDY DESCRIBES THE EFFECTS OF A YOGA SEQUENCE FOLLOWING HEMODYNAMIC AND BIOCHEMICAL PARAMETERS IN PATIENTS WITH HYPERTENSION. THIRTY-THREE VOLUNTEERS PARTICIPATED IN THE STUDY (CONTROL = 16 AND YOGA = 17) FOR FOUR MONTHS. BLOOD PRESSURE MEASUREMENTS, CARDIAC AND RESPIRATORY RATE WERE COLLECTED MONTHLY, WHILE THE BIOCHEMICAL PROFILE WAS TAKEN AT THE BEGINNING AND END OF THE PROGRAM. TO ANALYZE THE DATA, STUDENT'S T TEST AND REPEATED MEASURES ANALYSES WERE PERFORMED. THE YOGA GROUP SHOWED A SIGNIFICANT REDUCTION OF SYSTOLIC BLOOD PRESSURE, HEART AND RESPIRATORY RATE (P < 0.05). AS FOR THE BIOCHEMICAL PROFILE, THE YOGA GROUP SHOWED CORRELATION COEFFICIENTS BETWEEN INITIAL VALUES AND FINAL RESPONSES GREATER THAN THE CONTROL OF FASTING GLUCOSE, TOTAL CHOLESTEROL, LDL-CHOLESTEROL AND TRIGLYCERIDES. THE ELABORATED SEQUENCE PRACTICE PROMOTED SIGNIFICANT CARDIOVASCULAR AND METABOLIC BENEFITS. THE YOGA EXERCISES PERFORMED IN THE PROPOSED SEQUENCE CONSTITUTE COMPLEMENTARY NON-PHARMACOLOGICAL CONTROL OF BLOOD PRESSURE IN PATIENTS WITH HYPERTENSION. 2013 3 1835 31 PSYCHOPHYSIOLOGICAL CHANGES AT THE TIME OF EXAMINATION IN MEDICAL STUDENTS BEFORE AND AFTER THE PRACTICE OF YOGA AND RELAXATION. THE EFFECT OF YOGA AND RELAXATION CHANGES IN PSYCHOPHYSIOLOGICAL PARAMETERS IN RESPONSE TO THE STRESS OF EXAMINATION IN 75 MEDICAL STUDENTS WAS STUDIED. INITIALLY FIVE PARAMETERS (ANXIETY LEVEL, HEART RATE, BLOOD PRESSURE, GALVANIC SKIN RESISTANCE AND CHOICE REACTION TIME) WERE RECORDED, A MONTH BEFORE THE EXAMINATION AND ON THE DAY OF EXAMINATION. STUDENTS WERE THEN RANDOMLY DIVIDED INTO 3 GROUP OF 25 EACH. ONE GROUP PRACTICED YOGA (GROUP- Y), AND ANOTHER GROUP PRACTICED RELAXATION (GROUP-R) REGULARLY FOR THREE MONTHS. THE THIRD GROUP WAS CONTROL GROUP (GROUP-C). ALL THE PARAMETERS WERE RECORDED AFTER THE CHANGES IN ANXIETY LEVEL, HEART RATE, BLOOD PRESSURE, AND GALVANIC SKIN RESISTANCE IN RESPONSE TO STRESS OF EXAMINATION WERE SIGNIFICANTLY ATTENUATED AND THERE WAS SIGNIFICANT IMPROVEMENT IN CHOICE REACTION TIME IN GROUP-Y AND GROUP-R AS COMPARED TO GROUP-C AFTER YOGA AND RELAXATION. 1998 4 727 42 EFFECT OF LONG-TERM REGULAR YOGA ON PHYSICAL HEALTH OF YOGA PRACTITIONERS. BACKGROUND: YOGA IS A PHYSICAL, MENTAL, AND SPIRITUAL DISCIPLINE. THE EFFECT OF YOGA ON MENTAL HEALTH HAS BEEN STUDIED EXTENSIVELY IN INDIA BUT LESS IN THE CONTEXT OF PHYSICAL HEALTH. OBJECTIVE: THE OBJECTIVE WAS TO EXPLORE THE EFFECT OF LONG-TERM REGULAR YOGA ON PHYSICAL HEALTH OF YOGA PRACTITIONERS. MATERIALS AND METHODS: IT WAS AN INTERVENTIONAL STUDY. INCLUSION CRITERIA WERE STUDENTS WHO ENROLLED FOR 1-YEAR DIPLOMA COURSE AT THE YOGA CENTER. EXCLUSION CRITERIA WERE NONREGULAR YOGA PRACTITIONERS DURING THE COURSE. PHYSICAL HEALTH PARAMETERS CONSIDERED FOR ASSESSMENT BEFORE AND AFTER THE YOGA COURSE WERE PULMONARY FUNCTION TESTS, MAXIMUM OXYGEN CONSUMPTION (VO2 MAX) USING BRUCE TREADMILL TEST, FLEXIBILITY, BODY COMPOSITION ANALYSIS, AND HEMOGLOBIN LEVEL. PAIRED SAMPLE T-TEST AND CHI-SQUARE TEST WERE USED FOR STATISTICAL ANALYSIS. RESULTS: THE AEROBIC CAPACITY IMPROVED SIGNIFICANTLY IN TERMS OF MEAN (STANDARD DEVIATION [SD]) FORCED VITAL CAPACITY (P < 0.001), FORCED EXPIRATION VOLUME AT THE END OF THE FIRST SECOND (P < 0.001) AS WELL AS PEAK EXPIRATORY FLOW RATE (P = 0.04). THE MEAN (SD) FLEXIBILITY SCORE IMPROVED SIGNIFICANTLY (P < 0.001). SIMILARLY, THE ENDURANCE IMPROVED SIGNIFICANTLY IN TERMS OF MEAN (SD) VO2 MAX (< 0.001) AND TREADMILL TIME (P < 0.001). THERE WAS NO SIGNIFICANT CHANGE IN BODY COMPOSITION AND HEMOGLOBIN LEVEL. CONCLUSIONS: REGULAR YOGA PRACTITIONERS DEMONSTRATED THE IMPROVEMENT IN PULMONARY FUNCTIONS, CARDIORESPIRATORY FITNESS, ENDURANCE, AND FLEXIBILITY. 2021 5 435 44 CARDIOPULMONARY AND METABOLIC EFFECTS OF YOGA IN HEALTHY VOLUNTEERS. BACKGROUND: YOGA THE SPIRITUAL UNION OF MIND WITH THE DIVINE INTELLIGENCE OF THE UNIVERSE AIMS TO LIBERATE A HUMAN BEING FROM CONFLICTS OF BODY-MIND DUALITY. BENEFICIAL CARDIOVASCULAR AND PULMONARY EFFECTS OF YOGA ARE IN PAR WITH AEROBIC EXERCISE, EVEN AMOUNTING TO REPLACE THE EXERCISE MODEL. WE CONDUCTED AN INTERVENTIONAL STUDY IN HEALTHY VOLUNTEERS, TO ANALYZE THE IMPACT OF SHORT-TERM YOGA TRAINING ON CARDIOVASCULAR, PULMONARY, AUTONOMIC FUNCTION TESTS, LIPID PROFILE, AND THYROID FUNCTION TESTS. MATERIALS AND METHODS: A SAMPLE OF FIFTY NEW RECRUITS ATTENDING THE DISTRICT YOGA CENTER WAS SUBJECT TO 75 MIN YOGA PRACTICE A DAY FOR 41 DAYS. BASAL VALUES OF CARDIOVASCULAR, PULMONARY, AUTONOMIC FUNCTION TESTS, LIPID PROFILE, AND THYROID FUNCTION TESTS WERE RECORDED BEFORE YOGA TRAINING AND WERE REASSESSED FOR POSTYOGA CHANGES AFTER 41 DAYS. RESULTS: AFTER YOGA PRACTICE THERE WAS A SIGNIFICANT REDUCTION IN THE RESTING HEART RATE, SYSTOLIC BLOOD PRESSURE, DIASTOLIC BLOOD PRESSURE, AND MEAN BLOOD PRESSURE OF THE PARTICIPANTS. EFFECTS ON AUTONOMIC FUNCTION TESTS WERE VARIABLE AND INCONCLUSIVE. THERE WAS A SIGNIFICANT INCREASE IN FORCED VITAL CAPACITY, FORCED EXPIRATORY VOLUME IN 1 S, AND PEAK EXPIRATORY FLOW RATE AFTER YOGA. A SIGNIFICANT REDUCTION IN BODY MASS INDEX WAS OBSERVED. EFFECTS ON METABOLIC PARAMETERS WERE PROMISING WITH A SIGNIFICANT REDUCTION IN FASTING BLOOD SUGAR LEVEL, SERUM TOTAL CHOLESTEROL, SERUM TRIGLYCERIDES SERUM LOW-DENSITY LIPOPROTEIN LEVELS, AND SIGNIFICANT INCREASE IN HIGH-DENSITY LIPOPROTEIN. THERE WAS NO SIGNIFICANT CHANGE IN THYROID FUNCTION TESTS AFTER YOGA. CONCLUSION: SHORT-TERM YOGA PRACTICE HAS NO EFFECT ON THYROID FUNCTIONS. YOGA PRACTICE WAS FOUND BENEFICIAL IN MAINTAINING PHYSIOLOGICAL MILIEU PERTAINING TO CARDIOVASCULAR AND OTHER METABOLIC PARAMETERS. 2017 6 2863 35 YOGA-BASED GUIDED RELAXATION REDUCES SYMPATHETIC ACTIVITY JUDGED FROM BASELINE LEVELS. 35 MALE VOLUNTEERS WHOSE AGES RANGED FROM 20 TO 46 YEARS WERE STUDIED IN TWO SESSIONS OF YOGA-BASED GUIDED RELAXATION AND SUPINE REST. ASSESSMENTS OF AUTONOMIC VARIABLES WERE MADE FOR 15 SUBJECTS, BEFORE, DURING, AND AFTER THE PRACTICES, WHEREAS OXYGEN CONSUMPTION AND BREATH VOLUME WERE RECORDED FOR 25 SUBJECTS BEFORE AND AFTER BOTH TYPES OF RELAXATION. A SIGNIFICANT DECREASE IN OXYGEN CONSUMPTION AND INCREASE IN BREATH VOLUME WERE RECORDED AFTER GUIDED RELAXATION (PAIRED T TEST). THERE WERE COMPARABLE REDUCTIONS IN HEART RATE AND SKIN CONDUCTANCE DURING BOTH TYPES OF RELAXATION. DURING GUIDED RELAXATION THE POWER OF THE LOW FREQUENCY COMPONENT OF THE HEART-RATE VARIABILITY SPECTRUM REDUCED, WHEREAS THE POWER OF THE HIGH FREQUENCY COMPONENT INCREASED, SUGGESTING REDUCED SYMPATHETIC ACTIVITY. ALSO, SUBJECTS WITH A BASELINE RATIO OF LF/HF > 0.5 SHOWED A SIGNIFICANT DECREASE IN THE RATIO AFTER GUIDED RELAXATION, WHILE SUBJECTS WITH A RATIO < OR = 0.5 AT BASELINE SHOWED NO SUCH CHANGE. THE RESULTS SUGGEST THAT SYMPATHETIC ACTIVITY DECREASED AFTER GUIDED RELAXATION BASED ON YOGA, DEPENDING ON THE BASELINE LEVELS. 2002 7 306 35 AN EVALUATION OF THE ABILITY TO VOLUNTARILY REDUCE THE HEART RATE AFTER A MONTH OF YOGA PRACTICE. THE STUDY AIMED AT DETERMINING WHETHER NOVICES TO YOGA WOULD BE ABLE TO REDUCE THEIR HEART RATE VOLUNTARILY AND WHETHER THE MAGNITUDE OF REDUCTION WOULD BE MORE AFTER 30 DAYS OF YOGA TRAINING. TWO GROUPS (YOGA AND CONTROL, N = 12 EACH) WERE ASSESSED ON DAY 1 AND ON DAY 30. DURING THE INTERVENING 30 DAYS, THE YOGA GROUP RECEIVED TRAINING IN YOGA TECHNIQUES WHILE THE CONTROL GROUP CARRIED ON WITH THEIR ROUTINE. AT EACH ASSESSMENT THE BASELINE HEART RATE WAS RECORDED FOR ONE MINUTE, THIS WAS FOLLOWED BY A SIX-MINUTE PERIOD DURING WHICH PARTICIPANTS WERE ASKED TO ATTEMPT TO VOLUNTARILY REDUCE THEIR HEART RATE, USING ANY STRATEGY. BOTH THE BASELINE HEART RATE AND THE LOWEST HEART RATE ACHIEVED VOLUNTARILY DURING THE SIX-MINUTE PERIOD WERE SIGNIFICANTLY LOWER IN THE YOGA GROUP ON DAY 30 COMPARED TO DAY 1 BY A GROUP AVERAGE OF 10.7 BEATS PER MINUTE (I.E., BPM) AND 6.8 BPM, RESPECTIVELY (P < .05, WILCOXON PAIRED SIGNED RANKS TEST). IN CONTRAST, THERE WAS NO SIGNIFICANT CHANGE IN EITHER THE BASELINE HEART RATE OR THE LOWEST HEART RATE ACHIEVED VOLUNTARILY IN THE CONTROL GROUP ON DAY 30 COMPARED TO DAY 1. THE RESULTS SUGGEST THAT YOGA TRAINING CAN ENABLE PRACTITIONERS TO USE THEIR OWN STRATEGIES TO REDUCE THE HEART RATE, WHICH HAS POSSIBLE THERAPEUTIC APPLICATIONS. 2004 8 751 28 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 9 1060 49 EFFECTS OF YOGA ON FUNCTIONAL CAPACITY AND WELL BEING. YOGA HAS PROVEN BENEFICIAL EFFECTS ON VARIOUS HEALTH DOMAINS INCLUDING MUSCULOSKELETAL CONDITIONS, CARDIOPULMONARY CONDITIONS THROUGH THE PRACTICE OF ASANA AND PRANAYAMAS AS WELL AS ON MENTAL HEALTH, AS IT IS KNOWN TO ENHANCE THE BODY-AND MIND COORDINATION. THERE IS PAUCITY OF DATA ON THE EFFECT OF YOGA ON FUNCTIONAL CAPACITY IN LITERATURE USING 6 MIN WALK TEST. THE PRESENT STUDY AIMS TO LOOK AT THE EFFECT OF YOGA ON 6-MIN WALKED DISTANCE, RATING OF PERCEIVED EXERTION (RPE), RECOVERY TIME FOLLOWING THE WALK AND STATE OF WELL BEING. THIS IS A HOSPITAL-BASED LONGITUDINAL STUDY WHERE 30 PHYSIOTHERAPY STUDENTS OF THE AGE GROUP 18 - 22 YEARS OF EITHER SEX WERE ENROLLED. SUBJECTS HAVING MUSCULOSKELETAL PROBLEMS, CARDIO RESPIRATORY DISEASE AND THOSE WHO WERE NOT WILLING TO VOLUNTEER WERE EXCLUDED THEY RECEIVED YOGA INTERVENTION IN FORM OF YOGIC PRACTICES WHICH INCLUDED A COMBINATION OF ASANAS, PRANAYAMAS AND OMKAR CHANTING FOR 1 H FOR 30 SESSIONS. A BASELINE 6-MIN WALK TEST WAS CONDUCTED ON SUBJECTS AND THE 6-MIN WALKED DISTANCE, RATING OF PERCEIVED EXERTION (RPE) ON MODIFIED BORG'S SCALE WERE RECORDED. THE BASELINE STATE OF WELL-BEING WAS NOTED USING THE WARWICK- EDINBURGH MENTAL WELL-BEING SCALE AND SIMILAR RECORDING WAS DONE POST INTERVENTION AFTER 30 SESSIONS. OF THE 30 SUBJECTS, THERE WERE NO DROP OUTS AS THESE WERE COMMITTED COLLEGE STUDENTS. OF THEM, 24 WERE FEMALES AND 6 WERE MALES WITH A MEAN AGE OF 21.5 YEARS SD 2.38. STATISTICALLY SIGNIFICANT IMPROVEMENTS WERE OBSERVED IN 6-MIN WALK DISTANCE (P VALUE = 0.000), RPE (P VALUE < 0.000), RECOVERY TIME (P VALUE < 0.000) AND SENSE OF WELL BEING SCORE (P VALUE < 0.000). YOGA PRACTICES ARE BENEFICIAL IN IMPROVING THE FUNCTIONAL CAPACITY IN YOUNG HEALTHY ADULTS. YOGA CAN VERY WELL BE INCORPORATED IN MEDICAL PRACTICE FOR INCREASING THE PATIENT'S FUNCTIONAL CAPACITY, FOR THOSE WHO HAVE LIMITATIONS IN PERFORMING AEROBIC TRAINING DUE TO VARIOUS HEALTH REASONS. THE IMPROVED STATE OF WELL BEING MOTIVATES THE PATIENTS TO ADHERE TO YOGIC PRACTICES. 2013 10 1451 36 INFLUENCE OF INTENSIVE YOGA TRAINING ON PHYSIOLOGICAL CHANGES IN 6 ADULT WOMEN: A CASE REPORT. THE SHORT-TERM EFFECTS OF 4 WEEKS OF INTENSIVE YOGA PRACTICE ON PHYSIOLOGICAL RESPONSES IN SIX HEALTHY ADULT FEMALE VOLUNTEERS WERE MEASURED USING THE MAXIMAL EXERCISE TREADMILL TEST. YOGA PRACTICE INVOLVED DAILY MORNING AND EVENING SESSIONS OF 90 MINUTES EACH. PRE- AND POST-YOGA EXERCISE PERFORMANCE WAS COMPARED. MAXIMAL WORK OUTPUT (WMAX) FOR THE GROUP INCREASED BY 21%, WITH A SIGNIFICANTLY REDUCED LEVEL OF OXYGEN CONSUMPTION PER UNIT WORK BUT WITHOUT A CONCOMITANT SIGNIFICANT CHANGE IN HEART RATE. AFTER INTENSIVE YOGA TRAINING, AT 154 WMIN(-1) (CORRESPONDING TO WMAX OF THE PRE-YOGA MAXIMAL EXERCISE TEST) PARTICIPANTS COULD EXERCISE MORE COMFORTABLY, WITH A SIGNIFICANTLY LOWER HEART RATE (P < 0.05), REDUCED MINUTE VENTILATION (P < 0.05), REDUCED OXYGEN CONSUMPTION PER UNIT WORK (P < 0.05), AND A SIGNIFICANTLY LOWER RESPIRATORY QUOTIENT (P < 0.05). THE IMPLICATIONS FOR THE EFFECT OF INTENSIVE YOGA ON CARDIORESPIRATORY EFFICIENCY ARE DISCUSSED, WITH THE SUGGESTION THAT YOGA HAS SOME TRANSPARENTLY DIFFERENT QUANTIFIABLE PHYSIOLOGICAL EFFECTS TO OTHER EXERCISES. 1997 11 1102 44 EFFECTS OF YOGA TRAINING ON BODY COMPOSITION AND OXIDANT-ANTIOXIDANT STATUS AMONG HEALTHY MALE. BACKGROUND: THE STRESSFUL CONDITION MAY CAUSE OXIDATIVE STRESS, WHICH IS RESPONSIBLE FOR VARIOUS DISEASES. AIMS: THE PRESENT STUDY WAS DESIGNED TO FIND OUT WHETHER YOGA HAS IMPACT ON THE REDUCTION OF OXIDATIVE STRESS. METHODS: FOR THE PRESENT STUDY, 95 (N = 95) HEALTHY MALE VOLUNTEERS WITHIN THE AGE GROUP OF 18-24 YEARS WERE INCLUDED, 35 (N = 35) VOLUNTEERS WERE EXCLUDED. THE REMAINING 60 (N = 60) VOLUNTEERS WERE RANDOMLY DIVIDED INTO TWO GROUPS: (A) YOGA GROUP (N = 30) AND (B) CONTROL GROUP (N = 30). YOGA TRAINING WAS GIVEN FOR 60 MIN PER DAY, 6 DAYS PER WEEK FOR 12 WEEKS IN THE YOGA GROUP, WITH NO YOGA TRAINING IN CONTROL GROUP. ASSESSMENT OF BODY COMPOSITION AND OXIDANT-ANTIOXIDANT STATUS WERE PERFORMED IN BOTH THE GROUPS AT BASELINE, BEFORE YOGA TRAINING (0 WEEK) AND AFTER (12 WEEKS) OF THE TRAINING. RESULTS: SIGNIFICANT REDUCTION (P < 0.001) IN THE PERCENTAGE OF BODY FAT AND MALONDIALDEHYDE; SIGNIFICANT ELEVATION (P < 0.001) IN SUPEROXIDE DISMUTASE, CATALASE, REDUCED GLUTATHIONE AND ASCORBIC ACID LEVELS WERE NOTED IN THE YOGA GROUP AFTER 12 WEEKS WHEN COMPARED TO BASELINE DATA (0 WEEK). HOWEVER, THERE WAS NO SIGNIFICANT DIFFERENCE IN HEIGHT, WEIGHT, BODY MASS INDEX, BODY SURFACE AREA AND LEAN BODY MASS AMONG THE YOGA GROUP AFTER 12 WEEKS WHEN COMPARED TO BASELINE DATA. THESE CHANGES MIGHT BE DUE TO YOGA TRAINING. CONCLUSIONS: REGULAR YOGA PRACTICE REDUCES BODY FAT AND OXIDATIVE STRESS. YOGA TRAINING MAY BE HELPFUL TO REDUCE THE CHANCE OF OCCURRENCE OF VARIOUS DISEASES AND HELPS TO MAINTAIN NORMAL HEALTHY LIFESTYLE. 2018 12 523 36 COMPARISON OF CHANGES IN AUTONOMIC AND RESPIRATORY PARAMETERS OF GIRLS AFTER YOGA AND GAMES AT A COMMUNITY HOME. THE HEART RATE, BREATHING RATE, AND SKIN RESISTANCE WERE RECORDED FOR 20 COMMUNITY HOME GIRLS (HOME GROUP) AND FOR 20 AGE-MATCHED GIRLS FROM A REGULAR SCHOOL (SCHOOL GROUP). THE FORMER GROUP HAD A SIGNIFICANTLY HIGHER RATE OF BREATHING AND A MORE IRREGULAR BREATH PATTERN KNOWN TO CORRELATE WITH HIGH FEAR AND ANXIETY, THAN THE SCHOOL GROUP. SKIN RESISTANCE WAS SIGNIFICANTLY LOWER IN THE SCHOOL GROUP, WHICH MAY SUGGEST GREATER AROUSAL, 28 GIRLS OF THE HOME GROUP FORMED 14 PAIRS, MATCHED FOR AGE AND DURATION OF STAY IN THE HOME. SUBJECTS OF A PAIR WERE RANDOMLY ASSIGNED TO EITHER YOGA OR GAMES GROUPS. FOR THE FORMER EMPHASIS WAS ON RELAXATION AND AWARENESS, WHEREAS FOR THE LATTER INCREASING PHYSICAL ACTIVITY WAS EMPHASIZED. AT THE END OF AN HOUR DAILY FOR SIX MONTHS BOTH GROUPS SHOWED A SIGNIFICANT DECREASE IN THE RESTING HEART RATE RELATIVE TO INITIAL VALUES (WILCOXON PAIRED-SAMPLE REST), AND THE YOGA GROUP SHOWED A SIGNIFICANT DECREASE IN BREATH RATE, WHICH APPEARED MORE REGULAR BUT NO SIGNIFICANT INCREASE IN THE SKIN RESISTANCE. THESE RESULTS SUGGEST THAT A YOGA PROGRAM WHICH INCLUDES RELAXATION, AWARENESS, AND GRADED PHYSICAL ACTIVITY IS A USEFUL ADDITION TO THE ROUTINE OF COMMUNITY HOME CHILDREN. 1997 13 341 52 ARTERIAL BLOOD PRESSURE AND CARDIOVASCULAR RESPONSES TO YOGA PRACTICE. CONTEXT: YOGA IS QUALITATIVELY DIFFERENT FROM ANY OTHER MODE OF PHYSICAL ACTIVITY IN THAT IT CONSISTS OF A UNIQUE COMBINATION OF ISOMETRIC MUSCULAR CONTRACTIONS, STRETCHING EXERCISES, RELAXATION TECHNIQUES, AND BREATHING EXERCISES. IN PARTICULAR, YOGA POSTURES CONSIST OF SYSTEMIC ISOMETRIC CONTRACTIONS THAT ARE KNOWN TO ELICIT MARKED INCREASES IN MEAN BLOOD PRESSURE THAT ARE NOT OBSERVED DURING DYNAMIC EXERCISE. STRETCHING CAN ALSO INDUCE INCREASES IN BLOOD PRESSURE AND SYMPATHETIC NERVE ACTIVITY IN THE MUSCLES. CURRENTLY, NOT MUCH IS KNOWN ABOUT CHANGES IN BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES TO YOGA PRACTICE. OBJECTIVE: THE STUDY INTENDED TO DETERMINE THE ACUTE EFFECTS OF ONE SESSION OF HATHA YOGA PRACTICE ON BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES. TO GAIN INSIGHT INTO THE LONG-TERM EFFECTS OF YOGA PRACTICE, BOTH NOVICE (N = 19) AND ADVANCED (N = 18) YOGA PRACTITIONERS WERE STUDIED. DESIGN: THE TWO GROUPS WERE MATCHED FOR AGE, GENDER, BMI, AND BLOOD PRESSURE. SETTING: THE SETTING WAS A RESEARCH LABORATORY AT A UNIVERSITY. PARTICIPANTS: THIRTY-SIX APPARENTLY HEALTHY, NONOBESE, SEDENTARY, OR RECREATIONALLY ACTIVE INDIVIDUALS FROM THE COMMUNITY PARTICIPATED IN THE STUDY. INTERVENTION THE INTERVENTION COMPRISED ONE SESSION OF YOGA PRACTICE, IN WHICH PARTICIPANTS FOLLOWED A CUSTOM MADE INSTRUCTIONAL VIDEO PROVIDING A YOGA ROUTINE THAT CONSISTED OF A SERIES OF 23 HATHA-BASED YOGA POSTURES. OUTCOME MEASURES: PRIOR TO ARRIVING AT THE LABORATORY, EACH PARTICIPANT COMPLETED A RESEARCH HEALTH QUESTIONNAIRE, A TRAINING-STATUS QUESTIONNAIRE, AND A YOGA-EXPERIENCE QUESTIONNAIRE. PRIOR TO THE YOGA PRACTICE, EACH PARTICIPANT'S HEIGHT, BODY FAT PERCENTAGE, TRUNK OR LUMBAR FLEXIBILITY, AND ARTERIAL STIFFNESS AS ASSESSED BY CAROTID FEMORAL PULSE WAVE VELOCITY (CFPWV) WERE MEASURED. FOR EACH POSTURE DURING THE YOGA PRACTICE, THE STUDY CONTINUOUSLY MEASURED SYSTOLIC, MEAN, AND DIASTOLIC BLOOD PRESSURES, HEART RATE, STROKE VOLUME, AND CARDIAC OUTPUT. RESULTS: SYSTOLIC, MEAN, AND DIASTOLIC BLOOD PRESSURES INCREASED SIGNIFICANTLY DURING THE YOGA PRACTICE. THE MAGNITUDE OF THESE INCREASES IN BLOOD PRESSURE WAS GREATEST WITH STANDING POSTURES. HEART RATE AND CARDIAC OUTPUT INCREASED SIGNIFICANTLY DURING YOGA PRACTICE, ESPECIALLY WITH STANDING POSTURES. OVERALL, NO DIFFERENCES EXISTED IN CARDIOVASCULAR RESPONSES BETWEEN THE NOVICE AND ADVANCED PRACTITIONERS THROUGHOUT THE YOGA TESTING SESSION; CFPWV VELOCITY WAS SIGNIFICANTLY AND INVERSELY ASSOCIATED WITH LUMBAR FLEXION BUT NOT WITH SIT-AND-REACH TEST SCORES. CONCLUSIONS: THE RESEARCH TEAM CONCLUDED THAT A VARIETY OF HATHA YOGA POSTURES, ESPECIALLY STANDING POSTURES, EVOKED SIGNIFICANT INCREASES IN BLOOD PRESSURE. THE ELEVATION IN BLOOD PRESSURE DUE TO YOGA PRACTICE WAS ASSOCIATED WITH INCREASES IN CARDIAC OUTPUT AND HEART RATE, WHICH ARE RESPONSES SIMILAR TO THOSE OBSERVED IN ISOMETRIC EXERCISE. THE LACK OF OBVIOUS DIFFERENCES IN BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES BETWEEN NOVICE AND ADVANCED YOGA PRACTITIONERS SUGGESTS THAT LONG-TERM YOGA PRACTICE DOES NOT ATTENUATE ACUTE YOGA RESPONSES. 2013 14 716 44 EFFECT OF INTEGRATED YOGA PRACTICES ON IMMUNE RESPONSES IN EXAMINATION STRESS - A PRELIMINARY STUDY. BACKGROUND: STRESS IS OFTEN ASSOCIATED WITH AN INCREASED OCCURRENCE OF AUTONOMIC, CARDIOVASCULAR, AND IMMUNE SYSTEM PATHOLOGY. THIS STUDY WAS DONE TO EVALUATE THE IMPACT OF STRESS ON PSYCHOLOGICAL, PHYSIOLOGICAL PARAMETERS, AND IMMUNE SYSTEM DURING MEDICAL TERM -ACADEMIC EXAMINATION AND THE EFFECT OF YOGA PRACTICES ON THE SAME. MATERIALS AND METHODS: THE STUDY WAS CARRIED OUT ON SIXTY FIRST-YEAR MBBS STUDENTS RANDOMLY ASSIGNED TO YOGA GROUP AND CONTROL GROUP (30 EACH). THE YOGA GROUP UNDERWENT INTEGRATED YOGA PRACTICES FOR 35 MINUTES DAILY IN THE PRESENCE OF TRAINED YOGA TEACHER FOR 12 WEEKS. CONTROL GROUP DID NOT UNDERGO ANY KIND OF YOGA PRACTICE OR STRESS MANAGEMENT. PHYSIOLOGICAL PARAMETERS LIKE HEART RATE, RESPIRATORY RATE, AND BLOOD PRESSURE WERE MEASURED. GLOBAL ASSESSMENT OF RECENT STRESS SCALE AND SPIELBERGERS STATE ANXIETY SCORE WERE ASSESSED AT BASELINE AND DURING THE EXAMINATION. SERUM CORTISOL LEVELS, IL-4, AND IFN-GAMMA LEVELS WERE DETERMINED BY ENZYME-LINKED IMMUNOSORBENT ASSAY TECHNIQUE. RESULT: IN THE YOGA GROUP, NO SIGNIFICANT DIFFERENCE WAS OBSERVED IN PHYSIOLOGICAL PARAMETERS DURING THE EXAMINATION STRESS, WHEREAS IN THE CONTROL GROUP, A SIGNIFICANT INCREASE WAS OBSERVED. LIKEWISE, THE INDICATORS OF PSYCHOLOGICAL STRESS SHOWED HIGHLY SIGNIFICANT DIFFERENCE IN CONTROL GROUP COMPARED WITH SIGNIFICANT DIFFERENCE IN YOGA GROUP. DURING THE EXAMINATION, THE INCREASE IN SERUM CORTICAL AND DECREASE IN SERUM IFN-GAMMA IN YOGA GROUP WAS LESS SIGNIFICANT (P<0.01) THAN IN THE CONTROL GROUP (P<0.001). BOTH THE GROUPS DEMONSTRATED AN INCREASE IN SERUM IL-4 LEVELS, THE CHANGES BEING INSIGNIFICANT FOR THE DURATION OF THE STUDY. CONCLUSION: YOGA RESISTS THE AUTONOMIC CHANGES AND IMPAIRMENT OF CELLULAR IMMUNITY SEEN IN EXAMINATION STRESS. 2011 15 572 25 DEFINITION OF A YOGA BREATHING (PRANAYAMA) PROTOCOL THAT IMPROVES LUNG FUNCTION. THIS STUDY TESTS THE HYPOTHESIS THAT YOGA BREATHING (PRANAYAMA) IMPROVES LUNG FUNCTION IN HEALTHY VOLUNTEERS DURING A 6-WEEK PROTOCOL. A RANDOMIZED CONTROLLED PILOT STUDY DEMONSTRATED AN IMPROVEMENT IN PEAK EXPIRATORY FLOW RATE AND FORCED EXPIRATORY VOLUME. THE EASY-TO-LEARN APPROACH CAN BE TRANSLATED TO THE INPATIENT AND OUTPATIENT SETTINGS. 2019 16 2775 46 YOGA RESPIRATORY TRAINING IMPROVES RESPIRATORY FUNCTION AND CARDIAC SYMPATHOVAGAL BALANCE IN ELDERLY SUBJECTS: A RANDOMISED CONTROLLED TRIAL. OBJECTIVES: SINCE AGEING IS ASSOCIATED WITH A DECLINE IN PULMONARY FUNCTION, HEART RATE VARIABILITY AND SPONTANEOUS BAROREFLEX, AND RECENT STUDIES SUGGEST THAT YOGA RESPIRATORY EXERCISES MAY IMPROVE RESPIRATORY AND CARDIOVASCULAR FUNCTION, WE HYPOTHESISED THAT YOGA RESPIRATORY TRAINING MAY IMPROVE RESPIRATORY FUNCTION AND CARDIAC AUTONOMIC MODULATION IN HEALTHY ELDERLY SUBJECTS. DESIGN: 76 HEALTHY ELDERLY SUBJECTS WERE ENROLLED IN A RANDOMISED CONTROL TRIAL IN BRAZIL AND 29 COMPLETED THE STUDY (AGE 68 +/- 6 YEARS, 34% MALES, BODY MASS INDEX 25 +/- 3 KG/M(2)). SUBJECTS WERE RANDOMISED INTO A 4-MONTH TRAINING PROGRAM (2 CLASSES/WEEK PLUS HOME EXERCISES) OF EITHER STRETCHING (CONTROL, N=14) OR RESPIRATORY EXERCISES (YOGA, N=15). YOGA RESPIRATORY EXERCISES (BHASTRIKA) CONSISTED OF RAPID FORCED EXPIRATIONS FOLLOWED BY INSPIRATION THROUGH THE RIGHT NOSTRIL, INSPIRATORY APNOEA WITH GENERATION OF INTRATHORACIC NEGATIVE PRESSURE, AND EXPIRATION THROUGH THE LEFT NOSTRIL. PULMONARY FUNCTION, MAXIMUM EXPIRATORY AND INSPIRATORY PRESSURES (PE(MAX) AND PI(MAX), RESPECTIVELY), HEART RATE VARIABILITY AND BLOOD PRESSURE VARIABILITY FOR SPONTANEOUS BAROREFLEX DETERMINATION WERE DETERMINED AT BASELINE AND AFTER 4 MONTHS. RESULTS: SUBJECTS IN BOTH GROUPS HAD SIMILAR DEMOGRAPHIC PARAMETERS. PHYSIOLOGICAL VARIABLES DID NOT CHANGE AFTER 4 MONTHS IN THE CONTROL GROUP. HOWEVER, IN THE YOGA GROUP, THERE WERE SIGNIFICANT INCREASES IN PE(MAX) (34%, P<0.0001) AND PI(MAX) (26%, P<0.0001) AND A SIGNIFICANT DECREASE IN THE LOW FREQUENCY COMPONENT (A MARKER OF CARDIAC SYMPATHETIC MODULATION) AND LOW FREQUENCY/HIGH FREQUENCY RATIO (MARKER OF SYMPATHOVAGAL BALANCE) OF HEART RATE VARIABILITY (40%, P<0.001). SPONTANEOUS BAROREFLEX DID NOT CHANGE, AND QUALITY OF LIFE ONLY MARGINALLY INCREASED IN THE YOGA GROUP. CONCLUSION: RESPIRATORY YOGA TRAINING MAY BE BENEFICIAL FOR THE ELDERLY HEALTHY POPULATION BY IMPROVING RESPIRATORY FUNCTION AND SYMPATHOVAGAL BALANCE. TRIAL REGISTRATION CINICALTRIALS.GOV IDENTIFIER: NCT00969345; TRIAL REGISTRY NAME: EFFECTS OF RESPIRATORY YOGA TRAINING (BHASTRIKA) ON HEART RATE VARIABILITY AND BAROREFLEX, AND QUALITY OF LIFE OF HEALTHY ELDERLY SUBJECTS. 2011 17 2364 36 VOLUNTARY HEART RATE REDUCTION FOLLOWING YOGA USING DIFFERENT STRATEGIES. BACKGROUND/AIMS: ONE MONTH OF YOGA TRAINING HAS BEEN SHOWN TO REDUCE THE PULSE RATE VOLUNTARILY WITHOUT USING EXTERNAL CUES. HENCE, THE PRESENT STUDY WAS DESIGNED TO UNDERSTAND THE STRATEGIES USED BY YOGA PRACTITIONERS AND AUTONOMIC CHANGES ASSOCIATED WITH VOLUNTARY HEART RATE REDUCTION. MATERIALS AND METHODS: FIFTY VOLUNTEERS (GROUP MEAN AGE +/- S.D., 25.4 +/- 4.8 YEARS; 25 MALES) WERE ASSESSED IN TWO TRIALS ON SEPARATE DAYS. EACH TRIAL WAS FOR 12 MINUTES, WITH A 'PRE' STATE AND 'DURING' STATE OF 6 MINUTES EACH. FOR BOTH TRIALS THE 'PRE' STATE WAS RELAXATION WITH EYES CLOSED. IN THE 'DURING' STATE OF TRIAL I, SUBJECTS WERE ASKED TO VOLUNTARILY REDUCE THEIR HEART RATE USING A STRATEGY OF THEIR CHOICE. FROM THEIR RESPONSES TO SPECIFIC QUESTIONS IT WAS DETERMINED THAT 22 OUT OF 50 PERSONS USED BREATH REGULATION AS A STRATEGY. HENCE, IN THE 'DURING' STATE OF TRIAL II, SUBJECTS WERE ASKED TO VOLUNTARILY REDUCE THEIR HEART RATE BY BREATH REGULATION. RESULTS: IN THE FIRST TRIAL, THE HEART RATE WAS REDUCED BY AN AVERAGE OF 19.6 BEATS PER MINUTE AND IN THE SECOND TRIAL (WITH BREATH REGULATION EXCLUSIVELY) AN AVERAGE DECREASE OF 22.2 BEATS PER MINUTE WAS ACHIEVED. CONCLUSIONS: HENCE, THE STRATEGY USED DID NOT MARKEDLY ALTER THE OUTCOME. 2013 18 1258 36 FIFTEEN MINUTES OF CHAIR-BASED YOGA POSTURES OR GUIDED MEDITATION PERFORMED IN THE OFFICE CAN ELICIT A RELAXATION RESPONSE. THIS STUDY COMPARED ACUTE (15 MIN) YOGA POSTURE AND GUIDED MEDITATION PRACTICE, PERFORMED SEATED IN A TYPICAL OFFICE WORKSPACE, ON PHYSIOLOGICAL AND PSYCHOLOGICAL MARKERS OF STRESS. TWENTY PARTICIPANTS (39.6 +/- 9.5 YR) COMPLETED THREE CONDITIONS: YOGA, MEDITATION, AND CONTROL (I.E., USUAL WORK) SEPARATED BY >/=24 HRS. YOGA AND MEDITATION SIGNIFICANTLY REDUCED PERCEIVED STRESS VERSUS CONTROL, AND THIS EFFECT WAS MAINTAINED POSTINTERVENTION. YOGA INCREASED HEART RATE WHILE MEDITATION REDUCED HEART RATE VERSUS CONTROL (P < 0.05). RESPIRATION RATE WAS REDUCED DURING YOGA AND MEDITATION VERSUS CONTROL (P < 0.05). DOMAINS OF HEART RATE VARIABILITY (E.G., SDNN AND TOTAL POWER) WERE SIGNIFICANTLY REDUCED DURING CONTROL VERSUS YOGA AND MEDITATION. SYSTOLIC AND DIASTOLIC BLOOD PRESSURE WERE REDUCED SECONDARY TO MEDITATION VERSUS CONTROL ONLY (P < 0.05). PHYSIOLOGICAL ADAPTATIONS GENERALLY REGRESSED TOWARD BASELINE POSTINTERVENTION. IN CONCLUSION, YOGA POSTURES OR MEDITATION PERFORMED IN THE OFFICE CAN ACUTELY IMPROVE SEVERAL PHYSIOLOGICAL AND PSYCHOLOGICAL MARKERS OF STRESS. THESE EFFECTS MAY BE AT LEAST PARTIALLY MEDIATED BY REDUCED RESPIRATION RATE. 2012 19 2547 31 YOGA FOR BRONCHIAL ASTHMA: A CONTROLLED STUDY. FIFTY THREE PATIENTS WITH ASTHMA UNDERWENT TRAINING FOR TWO WEEKS IN AN INTEGRATED SET OF YOGA EXERCISES, INCLUDING BREATHING EXERCISES, SURYANAMASKAR, YOGASANA (PHYSICAL POSTURES), PRANAYAMA (BREATH SLOWING TECHNIQUES), DHYANA (MEDITATION), AND A DEVOTIONAL SESSION, AND WERE TOLD TO PRACTISE THESE EXERCISES FOR 65 MINUTES DAILY. THEY WERE THEN COMPARED WITH A CONTROL GROUP OF 53 PATIENTS WITH ASTHMA MATCHED FOR AGE, SEX, AND TYPE AND SEVERITY OF ASTHMA, WHO CONTINUED TO TAKE THEIR USUAL DRUGS. THERE WAS A SIGNIFICANTLY GREATER IMPROVEMENT IN THE GROUP WHO PRACTISED YOGA IN THE WEEKLY NUMBER OF ATTACKS OF ASTHMA, SCORES FOR DRUG TREATMENT, AND PEAK FLOW RATE. THIS STUDY SHOWS THE EFFICACY OF YOGA IN THE LONG TERM MANAGEMENT OF BRONCHIAL ASTHMA, BUT THE PHYSIOLOGICAL BASIS FOR THIS BENEFICIAL EFFECT NEEDS TO BE EXAMINED IN MORE DETAIL. 1985 20 1638 41 MODULATION OF CARDIOVASCULAR RESPONSE TO EXERCISE BY YOGA TRAINING. THIS STUDY REPORTS THE EFFECTS OF YOGA TRAINING ON CARDIOVASCULAR RESPONSE TO EXERCISE AND THE TIME COURSE OF RECOVERY AFTER THE EXERCISE. CARDIOVASCULAR RESPONSE TO EXERCISE WAS DETERMINED BY HARVARD STEP TEST USING A PLATFORM OF 45 CM HEIGHT. THE SUBJECTS WERE ASKED TO STEP UP AND DOWN THE PLATFORM AT A RATE OF 30/MIN FOR A TOTAL DURATION OF 5 MIN OR UNTIL FATIGUE, WHICHEVER WAS EARLIER. HEART RATE (HR) AND BLOOD PRESSURE RESPONSE TO EXERCISE WERE MEASURED IN SUPINE POSITION BEFORE EXERCISE AND AT 1, 2, 3, 4, 5, 7 AND 10 MINUTES AFTER THE EXERCISE. RATE-PRESSURE PRODUCT [RPP = (HR X SP)/100] AND DOUBLE PRODUCT (DO P = HR X MP), WHICH ARE INDICES OF WORK DONE BY THE HEART WERE ALSO CALCULATED. EXERCISE PRODUCED A SIGNIFICANT INCREASE IN HR, SYSTOLIC PRESSURE, RPP & DOP AND A SIGNIFICANT DECREASE IN DIASTOLIC PRESSURE. AFTER TWO MONTHS OF YOGA TRAINING, EXERCISE-INDUCED CHANGES IN THESE PARAMETERS WERE SIGNIFICANTLY REDUCED. IT IS CONCLUDED THAT AFTER YOGA TRAINING A GIVEN LEVEL OF EXERCISE LEADS TO A MILDER CARDIOVASCULAR RESPONSE, SUGGESTING BETTER EXERCISE TOLERANCE. 2004