1 306 111 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 2 2364 45 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 3 1102 42 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 4 358 27 ASSOCIATION BETWEEN YOGA, PHYSIOLOGIC AND PSYCHOLOGIC HEALTH: A CROSS SECTIONAL STUDY. PURPOSE: TO COMPARE MARKERS OF HEALTH ASSOCIATED WITH CHRONIC DISEASES BETWEEN YOGA AND NON-YOGA PARTICIPANTS. METHODS: 30 PARTICIPANTS WERE CATEGORIZED AS EITHER: 1) "YOGA" ENGAGING IN YOGA >/=2 TIMES/WEEK FOR >/=6 MONTHS, OR 2) "NON-YOGA" NOT ENGAGING IN YOGA. RESULTS: PERCEIVED STRESS SCALE (PSS) AND BECK DEPRESSION INVENTORY-II (BDI-II) SCORES WERE SIGNIFICANTLY DIFFERENT BETWEEN THE YOGA AND NON-YOGA GROUPS (PSS: 8.0 VS. 17.5, RESPECTIVELY, P < 0.05; BDI-II: 1.0 VS. 5.5, RESPECTIVELY, P < 0.05). NO SIGNIFICANT DIFFERENCES WERE EVIDENT BETWEEN GROUPS FOR INFLAMMATORY MARKERS NOR COMPLEX V OF THE MITOCHONDRIAL ELECTRON TRANSPORT CHAIN. THE ERYTHROCYTE SEDIMENTATION RATE VALUES DIFFERED BETWEEN GROUPS BASED ON CLINICAL CUTOFFS, WITH YOGA PARTICIPANTS CATEGORIZED AS NORMAL (11.0 MM) AND NON-YOGA ABOVE NORMAL (21.5 MM). CONCLUSION: THIS RESEARCH SUPPORTS THAT YOGA PARTICIPATION IS ASSOCIATED WITH LOWER PSS AND BDI-II SCORES BUT DOES NOT SUPPORT A RELATIONSHIP WITH MARKERS OF INFLAMMATION. FURTHER RESEARCH IS WARRANTED. 2021 5 756 31 EFFECT OF SIX WEEKS YOGA TRAINING ON WEIGHT LOSS FOLLOWING STEP TEST, RESPIRATORY PRESSURES, HANDGRIP STRENGTH AND HANDGRIP ENDURANCE IN YOUNG HEALTHY SUBJECTS. THE PRESENT STUDY WAS DESIGNED TO TEST WHETHER YOGA TRAINING OF SIX WEEKS DURATION MODULATES SWEATING RESPONSE TO DYNAMIC EXERCISE AND IMPROVES RESPIRATORY PRESSURES, HANDGRIP STRENGTH AND HANDGRIP ENDURANCE. OUT OF 46 HEALTHY SUBJECTS (30 MALES AND 16 FEMALES, AGED 17-20 YR), 23 MOTIVATED SUBJECTS (15 MALE AND 8 FEMALE) WERE GIVEN YOGA TRAINING AND THE REMAINING 23 SUBJECTS SERVED AS CONTROLS. WEIGHT LOSS FOLLOWING HARVARD STEP TEST (AN INDEX OF SWEAT LOSS), MAXIMUM INSPIRATORY PRESSURE, MAXIMUM EXPIRATORY PRESSURE, 40 MM ENDURANCE, HANDGRIP STRENGTH AND HANDGRIP ENDURANCE WERE DETERMINED BEFORE AND AFTER THE SIX WEEK STUDY PERIOD. IN THE YOGA GROUP, WEIGHT LOSS IN RESPONSE TO HARVARD STEP TEST WAS 64 +/- 30 G AFTER YOGA TRAINING AS COMPARED TO 161 +/- 133 G BEFORE THE TRAINING AND THE DIFFERENCE WAS SIGNIFICANT (N = 15 MALE SUBJECTS, P < 0.0001). IN CONTRAST, WEIGHT LOSS FOLLOWING STEP TEST WAS NOT SIGNIFICANTLY DIFFERENT IN THE CONTROL GROUP AT THE END OF THE STUDY PERIOD. YOGA TRAINING PRODUCED A MARKED INCREASE IN RESPIRATORY PRESSURES AND ENDURANCE IN 40 MM HG TEST IN BOTH MALE AND FEMALE SUBJECTS (P < 0.05 FOR ALL COMPARISONS). IN CONCLUSION, THE PRESENT STUDY DEMONSTRATES ATTENUATION OF THE SWEATING RESPONSE TO STEP TEST BY YOGA TRAINING. FURTHER, YOGA TRAINING FOR A SHORT PERIOD OF SIX WEEKS CAN PRODUCE SIGNIFICANT IMPROVEMENTS IN RESPIRATORY MUSCLE STRENGTH AND ENDURANCE. 2008 6 807 31 EFFECT OF YOGA ON ARRHYTHMIA BURDEN, ANXIETY, DEPRESSION, AND QUALITY OF LIFE IN PAROXYSMAL ATRIAL FIBRILLATION: THE YOGA MY HEART STUDY. OBJECTIVES: THE PURPOSE OF THIS STUDY WAS TO EXAMINE THE IMPACT OF YOGA ON ATRIAL FIBRILLATION (AF) BURDEN, QUALITY OF LIFE (QOL), DEPRESSION, AND ANXIETY SCORES. BACKGROUND: YOGA IS KNOWN TO HAVE SIGNIFICANT BENEFIT ON CARDIOVASCULAR HEALTH. THE EFFECT OF YOGA IN REDUCING AF BURDEN IS UNKNOWN. METHODS: THIS SINGLE-CENTER, PRE-POST STUDY ENROLLED PATIENTS WITH SYMPTOMATIC PAROXYSMAL AF WITH AN INITIAL 3-MONTH NONINTERVENTIONAL OBSERVATION PERIOD FOLLOWED BY TWICE-WEEKLY 60-MIN YOGA TRAINING FOR NEXT 3 MONTHS. AF EPISODES DURING THE CONTROL AND STUDY PERIODS AS WELL AS SF-36, ZUNG SELF-RATED ANXIETY, AND ZUNG SELF-RATED DEPRESSION SCORES AT BASELINE, BEFORE, AND AFTER THE STUDY PHASE WERE ASSESSED. RESULTS: YOGA TRAINING REDUCED SYMPTOMATIC AF EPISODES (3.8 +/- 3 VS. 2.1 +/- 2.6, P < 0.001), SYMPTOMATIC NON-AF EPISODES (2.9 +/- 3.4 VS. 1.4 +/- 2.0; P < 0.001), ASYMPTOMATIC AF EPISODES (0.12 +/- 0.44 VS. 0.04 +/- 0.20; P < 0.001), AND DEPRESSION AND ANXIETY (P < 0.001), AND IMPROVED THE QOL PARAMETERS OF PHYSICAL FUNCTIONING, GENERAL HEALTH, VITALITY, SOCIAL FUNCTIONING, AND MENTAL HEALTH DOMAINS ON SF-36 (P = 0.017, P < 0.001, P < 0.001, P = 0.019, AND P < 0.001, RESPECTIVELY). THERE WAS SIGNIFICANT DECREASE IN HEART RATE, AND SYSTOLIC AND DIASTOLIC BLOOD PRESSURE BEFORE AND AFTER YOGA (P < 0.001). CONCLUSIONS: IN PATIENTS WITH PAROXYSMAL AF, YOGA IMPROVES SYMPTOMS, ARRHYTHMIA BURDEN, HEART RATE, BLOOD PRESSURE, ANXIETY AND DEPRESSION SCORES, AND SEVERAL DOMAINS OF QOL. 2013 7 50 26 A COMPARATIVE CONTROLLED TRIAL COMPARING THE EFFECTS OF YOGA AND WALKING FOR OVERWEIGHT AND OBESE ADULTS. BACKGROUND: WALKING AND YOGA HAVE BEEN INDEPENDENTLY EVALUATED FOR WEIGHT CONTROL; HOWEVER, THERE ARE VERY FEW STUDIES COMPARING THE 2 WITH RANDOMIZATION. MATERIAL AND METHODS: THE PRESENT STUDY COMPARED THE EFFECTS OF 90 MINUTES/DAY FOR 15 DAYS OF SUPERVISED YOGA OR SUPERVISED WALKING ON: (I) RELATED BIOCHEMISTRY, (II) ANTHROPOMETRIC VARIABLES, (III) BODY COMPOSITION, (IV) POSTURAL STABILITY, AND (V) BILATERAL HAND GRIP STRENGTH IN OVERWEIGHT AND OBESE PERSONS. SIXTY-EIGHT PARTICIPANTS, OF WHOM 5 WERE OVERWEIGHT (BMI >/=25 KG/M2) AND 63 WERE OBESE (BMI >/=30 KG/M2; GROUP MEAN AGE +/-S.D., 36.4+/-11.2 YEARS; 35 FEMALES), WERE RANDOMIZED AS 2 GROUPS - (I) A YOGA GROUP AND (II) A WALKING GROUP - GIVEN THE SAME DIET. RESULTS: ALL DIFFERENCES WERE PRE-POST CHANGES WITHIN EACH GROUP. BOTH GROUPS SHOWED A SIGNIFICANT (P<0.05; REPEATED MEASURES ANOVA, POST-HOC ANALYSES) DECREASE IN: BMI, WAIST CIRCUMFERENCE, HIP CIRCUMFERENCE, LEAN MASS, BODY WATER, AND TOTAL CHOLESTEROL. THE YOGA GROUP INCREASED SERUM LEPTIN (P<0.01) AND DECREASED LDL CHOLESTEROL (P<0.05). THE WALKING GROUP DECREASED SERUM ADIPONECTIN (P<0.05) AND TRIGLYCERIDES (P<0.05). CONCLUSIONS: BOTH YOGA AND WALKING IMPROVED ANTHROPOMETRIC VARIABLES AND SERUM LIPID PROFILE IN OVERWEIGHT AND OBESE PERSONS. THE POSSIBLE IMPLICATIONS ARE DISCUSSED. 2014 8 1317 37 HEART RATE VARIABILITY CHANGES DURING HIGH FREQUENCY YOGA BREATHING AND BREATH AWARENESS. BACKGROUND: PRE AND POST COMPARISON AFTER ONE MINUTE OF HIGH FREQUENCY YOGA BREATHING (HFYB) SUGGESTED THAT THE HFYB MODIFIES THE AUTONOMIC STATUS BY INCREASING SYMPATHETIC MODULATION, BUT ITS EFFECT DURING THE PRACTICE WAS NOT ASSESSED. METHODS: THIRTY-EIGHT MALE VOLUNTEERS WITH GROUP AVERAGE AGE +/- S.D., 23.3 +/- 4.4 YEARS WERE EACH ASSESSED ON TWO SEPARATE DAYS IN TWO SESSIONS, (I) HFYB AND (II) BREATH AWARENESS. EACH SESSION WAS FOR 35 MINUTES, WITH 3 PERIODS, I.E., PRE (5 MINUTES), DURING HFYB OR BREATH AWARENESS (15 MINUTES) AND POST (5 MINUTES). RESULTS: THERE WAS A SIGNIFICANT DECREASE IN NN50, PNN50 AND THE MEAN RR INTERVAL DURING AND AFTER HFYB AND AFTER BREATH AWARENESS, COMPARED TO THE RESPECTIVE 'PRE' VALUES (P < 0.05) (REPEATED MEASURES ANOVA FOLLOWED BY POST-HOC ANALYSIS). THE LF POWER INCREASED AND HF POWER DECREASED DURING AND AFTER BREATH AWARENESS AND LF/HF RATIO INCREASED AFTER BREATH AWARENESS (P < 0.05). CONCLUSION: THE RESULTS SUGGEST THAT THERE WAS REDUCED PARASYMPATHETIC MODULATION DURING AND AFTER HFYB AND INCREASED SYMPATHETIC MODULATION WITH REDUCED PARASYMPATHETIC MODULATION DURING AND AFTER BREATH AWARENESS. 2011 9 969 44 EFFECTS OF AN 8-MONTH YOGA INTERVENTION ON ARTERIAL COMPLIANCE AND MUSCLE STRENGTH IN PREMENOPAUSAL WOMEN. PREVIOUS STUDIES HAVE INDICATED THAT YOGA EXERCISE HAS A POSITIVE EFFECT ON REDUCING BLOOD PRESSURE AND HEART RATE. HOWEVER, NO RANDOMIZED CONTROLLED STUDIES TO DATE HAVE INVESTIGATED ITS EFFECTS ON ARTERIAL COMPLIANCE. THE PURPOSE OF THIS STUDY WAS TO INVESTIGATE THE EFFECTS OF AN 8-MONTH YOGA INTERVENTION ON ARTERIAL COMPLIANCE AND MUSCLE STRENGTH IN NORMAL PREMENOPAUSAL WOMEN 35-50 YEARS OF AGE. THIRTY-FOUR WOMEN WERE RANDOMLY ASSIGNED EITHER TO A YOGA EXERCISE GROUP (YE, N = 16) OR A CONTROL GROUP (CON, N = 18). PARTICIPANTS IN YE GROUP PERFORMED 60 MINUTES OF AN ASHTANGA YOGA SERIES 2 TIMES/WEEK WITH ONE DAY BETWEEN SESSIONS FOR 8 MONTHS. EACH YOGA SESSION CONSISTED OF 15 MINUTES OF WARM-UP EXERCISES, 35 MINUTES OF ASHTANGA YOGA POSTURES AND 10 MINUTES OF COOL-DOWN WITH RELAXATION; AND THE SESSION INTENSITY WAS PROGRESSIVELY INCREASED DURING THE 8 MONTHS. PARTICIPANTS IN CON WERE ENCOURAGED TO MAINTAIN THEIR NORMAL DAILY LIFESTYLES MONITORED BY THE BONE-SPECIFIC PHYSICAL ACTIVITY QUESTIONNAIRE AT 2 MONTH INTERVALS FOR 8 MONTHS. ARTERIAL COMPLIANCE (PULSE CONTOUR ANALYSIS) AND MUSCLE STRENGTH (1 REPETITION MAXIMUM) WERE ASSESSED AT BASELINE AND AFTER THE INTERVENTION. ARTERIAL COMPLIANCE OF THE LARGE AND SMALL ARTERIES WAS NOT AFFECTED BY THE 8 MONTH YOGA TRAINING (P > 0.05). ALSO, THERE WERE NO SIGNIFICANT (P > 0.05) GROUP, TIME, OR GROUP X TIME INTERACTION EFFECTS FOR CARDIOVASCULAR VARIABLES. YE GROUP SIGNIFICANTLY (P < 0.01) IMPROVED LEG PRESS MUSCLE STRENGTH COMPARED TO CON (11.4% VS. -6.5%). EIGHT MONTHS OF ASHTANGA YOGA TRAINING WAS BENEFICIAL FOR IMPROVING LEG PRESS STRENGTH, BUT NOT ARTERIAL COMPLIANCE IN PREMENOPAUSAL WOMEN. KEY POINTSTHE 8 MONTH YOGA TRAINING DID NOT AFFECT ARTERIAL COMPLIANCE OF THE LARGE AND SMALL ARTERIES.NONE OF THE CARDIOVASCULAR VARIABLES WERE CHANGED BY THE YOGA INTERVENTION.ISOTONIC MUSCLE STRENGTH WAS NOT ALTERED BY THE YOGA INTERVENTION, WITH THE EXCEPTION OF LEG PRESS. 2012 10 884 31 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 11 2775 35 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 12 1451 34 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 13 462 31 CHANGES IN REACTION TIME AFTER YOGA BELLOWS-TYPE BREATHING IN HEALTHY FEMALE VOLUNTEERS. BACKGROUND: PREVIOUSLY, YOGA BELLOWS-TYPE BREATHING (BHASTRIKA PRANAYAMA) REDUCED REACTION TIME (RT) OR REDUCED ANTICIPATORY RESPONSES IN MALE PARTICIPANTS OR A MIXED GROUP OF MALE AND FEMALE PARTICIPANTS. AIMS: THE PRESENT STUDY AS A CONTROL TRIAL AIMED TO ASSESS THE EFFECTS OF YOGA BELLOWS-TYPE BREATHING ON RT IN FEMALES EXCLUSIVELY. METHODS: THE SAMPLE CONSISTED OF 25 HEALTHY FEMALES, AGED BETWEEN 19 AND 32 YEARS (GROUP MEAN +/- STANDARD DEVIATION, 22.8 +/- 3.5 YEARS). ALL OF THEM HAD PRIOR MINIMUM EXPERIENCE OF YOGA INCLUDING YOGA BELLOWS-TYPE BREATHING OF 12 MONTHS. THE RT WAS ASSESSED IN EACH PARTICIPANT BEFORE AND AFTER THREE RANDOMIZED SESSIONS DIFFERED IN THE INTERVENTION GIVEN HELD ON THREE SEPARATE DAYS. THE SESSIONS WERE (I) YOGA BELLOWS-TYPE BREATHING OR BHASTRIKA PRANAYAMA(BHK), (II) BREATH AWARENESS (BAW), AND (III) SITTING QUIETLY (CTL) AS A CONTROL SESSION. THE DURATION OF THE INTERVENTION WAS 18 MIN, AND THE PARTICIPANTS WERE ASSESSED FOR RT BEFORE AND AFTER THE INTERVENTION. RESULTS: REPEATED MEASURES ANOVA, POST HOC TESTS WITH BONFERRONI ADJUSTED SHOWED THAT THE TIME TAKEN TO OBTAIN A CORRECT RESPONSE REDUCED SIGNIFICANTLY AFTER 18 MIN OF BAW (P < 0.05) AND CTL (P < 0.05). HOWEVER, NO CHANGES WERE SEEN IN THE RT AFTER BHK. CONCLUSIONS: THE RESULTS SUGGEST THAT DIFFERENT INTERVENTIONS MAY OPTIMIZE PERFORMANCE IN TASKS REQUIRING ATTENTION IN FEMALES COMPARED TO MALES. 2018 14 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 15 1350 28 IMMEDIATE CHANGES IN MUSCLE STRENGTH AND MOTOR SPEED FOLLOWING YOGA BREATHING. THE PRESENT STUDY WAS CONDUCTED TO ASSESS THE IMMEDIATE EFFECT OF HIGH-FREQUENCY YOGA BREATHING ON MUSCLE STRENGTH AND MOTOR SPEED. BILATERAL HANDGRIP STRENGTH, LEG AND BACK STRENGTH, FINGER TAPPING AND ARM TAPPING SPEED WERE ASSESSED IN FIFTY MALE PARTICIPANTS (GROUP MEAN AGE +/- SD, 26.9 +/- 6.2 YEARS) BEFORE AND AFTER (A) HIGH FREQUENCY YOGA BREATHING FOR 15 MINUTES AND (B) BREATH AWARENESS FOR THE SAME DURATION. SESSIONS (A) AND (B) WERE ON TWO DIFFERENT DAYS BUT AT THE SAME TIME OF THE DAY. THE SCHEDULE WAS ALTERNATED FOR DIFFERENT PARTICIPANTS. THERE WAS A SIGNIFICANT INCREASE (P < 0.05) IN RIGHT HAND GRIP STRENGTH AFTER HIGH FREQUENCY YOGA BREATHING. BOTH FINGER AND ARM TAPPING IMPROVED AFTER BOTH PRACTICES. THE RESULTS SUGGEST A ROLE FOR HIGH FREQUENCY YOGA BREATHING IN IMPROVING THE HAND GRIP STRENGTH AS AN IMMEDIATE EFFECT. 2014 16 966 30 EFFECTS OF A YOGA-BASED STRESS INTERVENTION PROGRAM ON THE BLOOD PRESSURE OF YOUNG POLICE OFFICERS: A RANDOMIZED CONTROLLED TRIAL. OBJECTIVES: DESPITE IMPROVEMENTS IN HEALTH EDUCATION AND TREATMENT, ARTERIAL HYPERTENSION REMAINS A MAJOR HEALTH PROBLEM OF INCREASING EPIDEMIOLOGICAL IMPORTANCE. THE PURPOSE OF THIS RANDOMIZED CONTROLLED TRIAL WAS TO DETERMINE THE IMPACT OF REGULAR YOGA BREATHING EXERCISES ON BLOOD PRESSURE, WORK-RELATED STRESS, AND THE PREVALENCE OF ARTERIAL HYPERTENSION IN YOUNG POLICE ACADEMY TRAINEES WITH NO EXISTING COMORBIDITIES. DESIGN: A SINGLE-CENTER, PROSPECTIVE, RANDOMIZED CONTROLLED TRIAL. SUBJECTS: THE STUDY INCLUDED 120 HEALTHY TRAINEES AGED BETWEEN 18 AND 39 YEARS WHO PRACTICED WEEKLY YOGA EXERCISES WITH AN EMPHASIS ON BREATHING (PRANAYAMA) OVER AN OBSERVATION PERIOD OF 6 MONTHS. RESULTS: THESE REGULAR EXERCISES LOWERED THE BLOOD PRESSURE OF THE PARTICIPANTS BY 1.34 MMHG (RIGHT ARM, P = 0.007), INCREASED THEIR REGENERATIVE CAPACITY (RECOVERY EXPERIENCE QUESTIONNAIRE [REQ] SCALE +2.77, P < 0.001) AND RESILIENCE (RESILIENCE SCALE [RS] +4.6, P = 0.001), AND CONCOMITANTLY REDUCED THE LEVEL OF PERCEIVED STRESS (PERCEIVED STRESS SCALE [PSS] -0.9, P < 0.001). IN CONTRAST, BLOOD PRESSURE IN THE CONTROL GROUP HAD SLIGHTLY INCREASED OVER THE STUDY PERIOD BY 0.1 MMHG (RIGHT ARM, P < 0.001) AND 1.0 MMHG (LEFT ARM, P = 0.03), AND SUBJECTIVE SCORES HAD SIGNIFICANTLY WORSENED (REQ SCALE -3.4, P < 0.001; RS -2.29, P = 0.001; PSS +0.88, P < 0.001). CONCLUSIONS: THE RESULTS POINT TO A SIGNIFICANT CORRELATION BETWEEN BLOOD PRESSURE AND BOTH REGENERATIVE CAPACITY AND STRESS LEVEL. THUS, THE STUDY CONFIRMS THE HYPOTHESIS THAT YOGA EXERCISES REDUCE PERCEIVED STRESS AND EXERT POSITIVE EFFECTS ON BLOOD PRESSURE. CLINICAL TRIAL REGISTRATION NUMBER: DRKS00025921. 2022 17 992 23 EFFECTS OF HATHA YOGA PRACTICE ON THE HEALTH-RELATED ASPECTS OF PHYSICAL FITNESS. TEN HEALTHY, UNTRAINED VOLUNTEERS (NINE FEMALES AND ONE MALE), RANGING IN AGE FROM 18-27 YEARS, WERE STUDIED TO DETERMINE THE EFFECTS OF HATHA YOGA PRACTICE ON THE HEALTH-RELATED ASPECTS OF PHYSICAL FITNESS, INCLUDING MUSCULAR STRENGTH AND ENDURANCE, FLEXIBILITY, CARDIORESPIRATORY FITNESS, BODY COMPOSITION, AND PULMONARY FUNCTION. SUBJECTS WERE REQUIRED TO ATTEND A MINIMUM OF TWO YOGA CLASSES PER WEEK FOR A TOTAL OF 8 WEEKS. EACH YOGA SESSION CONSISTED OF 10 MINUTES OF PRANAYAMAS (BREATH-CONTROL EXERCISES), 15 MINUTES OF DYNAMIC WARM-UP EXERCISES, 50 MINUTES OF ASANAS (YOGA POSTURES), AND 10 MINUTES OF SUPINE RELAXATION IN SAVASANA (CORPSE POSE). THE SUBJECTS WERE EVALUATED BEFORE AND AFTER THE 8-WEEK TRAINING PROGRAM. ISOKINETIC MUSCULAR STRENGTH FOR ELBOW EXTENSION, ELBOW FLEXION, AND KNEE EXTENSION INCREASED BY 31%, 19%, AND 28% (P<0.05), RESPECTIVELY, WHEREAS ISOMETRIC MUSCULAR ENDURANCE FOR KNEE FLEXION INCREASED 57% (P<0.01). ANKLE FLEXIBILITY, SHOULDER ELEVATION, TRUNK EXTENSION, AND TRUNK FLEXION INCREASED BY 13% (P<0.01), 155% (P<0.001), 188% (P<0.001), AND 14% (P<0.05), RESPECTIVELY. ABSOLUTE AND RELATIVE MAXIMAL OXYGEN UPTAKE INCREASED BY 7% AND 6%, RESPECTIVELY (P<0.01). THESE FINDINGS INDICATE THAT REGULAR HATHA YOGA PRACTICE CAN ELICIT IMPROVEMENTS IN THE HEALTH-RELATED ASPECTS OF PHYSICAL FITNESS. (C)2001 CHF, INC. 2001 18 727 30 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 19 389 29 BENEFITS OF YOGA FOR AFRICAN AMERICAN HEART FAILURE PATIENTS. BACKGROUND: THE NUMBER OF AFRICAN AMERICAN (AA) PATIENTS LIVING WITH HEART FAILURE (HF) HAS BEEN INCREASING, ESPECIALLY AMONG THE ECONOMICALLY DISADVANTAGED. YOGA THERAPY HAS BEEN FOUND TO IMPROVE PHYSICAL AND PSYCHOLOGICAL PARAMETERS AMONG HEALTHY INDIVIDUALS, BUT ITS EFFECT IN PATIENTS WITH HF REMAINS UNKNOWN. THE PURPOSE OF THIS STUDY WAS TO EXAMINE THE EFFECTS OF YOGA THERAPY ON CARDIOVASCULAR ENDURANCE (VO2PEAK), FLEXIBILITY, QUALITY OF LIFE (QOL), AND INFLAMMATORY MARKERS ON MEDICALLY STABLE HF PATIENTS. METHODS: FORTY PATIENTS (38 AA, 1 ASIAN, AND 1 CAUCASIAN) WITH SYSTOLIC OR DIASTOLIC HF WERE RANDOMIZED TO THE YOGA GROUP (YG, N = 21) OR THE CONTROL GROUP (CG, N = 19). ALL PATIENTS WERE ASKED TO FOLLOW A HOME WALK PROGRAM. PREMEASUREMENT AND POSTMEASUREMENT INCLUDED A TREADMILL STRESS TEST TO PEAK EXERTION, FLEXIBILITY, INTERLEUKIN-6 (IL-6), C-REACTIVE PROTEIN (CRP), AND EXTRACELLULAR SUPEROXIDE DISMUTASE (EC-SOD). QOL WAS ASSESSED BY THE MINNESOTA LIVING WITH HEART FAILURE QUESTIONNAIRE (MLWHFQ). RESULTS: THE STATISTICAL ANALYSES (ASSESSED BY ANOVA AND T-TESTS) WERE SIGNIFICANT FOR FAVORABLE CHANGES IN THE YG, COMPARED WITH THOSE IN THE CG, FOR FLEXIBILITY (P = 0.012), TREADMILL TIME (P = 0.002), VO2PEAK (P = 0.003), AND THE BIOMARKERS (IL-6, P = 0.004; CRP, P = 0.016; AND EC-SOD, P = 0.012). WITHIN THE YG, PRETEST TO POSTTEST SCORES FOR THE TOTAL (P = 0.02) AND PHYSICAL SUBSCALES (P < 0.001) OF THE MLWHFQ WERE IMPROVED. CONCLUSIONS: YOGA THERAPY OFFERED ADDITIONAL BENEFITS TO THE STANDARD MEDICAL CARE OF PREDOMINANTLY AA HF PATIENTS BY IMPROVING CARDIOVASCULAR ENDURANCE, QOL, INFLAMMATORY MARKERS, AND FLEXIBILITY. 2010 20 1533 32 IYENGAR YOGA VERSUS ENHANCED USUAL CARE ON BLOOD PRESSURE IN PATIENTS WITH PREHYPERTENSION TO STAGE I HYPERTENSION: A RANDOMIZED CONTROLLED TRIAL. THE PREVALENCE OF PREHYPERTENSION AND STAGE 1 HYPERTENSION CONTINUES TO INCREASE DESPITE BEING AMENABLE TO NON-PHARMACOLOGIC INTERVENTIONS. IYENGAR YOGA (IY) HAS BEEN PURPORTED TO REDUCE BLOOD PRESSURE (BP) THOUGH EVIDENCE FROM RANDOMIZED TRIALS IS LACKING. WE CONDUCTED A RANDOMIZED CONTROLLED TRIAL TO ASSESS THE EFFECTS OF 12 WEEKS OF IY VERSUS ENHANCED USUAL CARE (EUC) (BASED ON INDIVIDUAL DIETARY ADJUSTMENT) ON 24-H AMBULATORY BP IN YOGA-NAIVE ADULTS WITH UNTREATED PREHYPERTENSION OR STAGE 1 HYPERTENSION. IN TOTAL, 26 AND 31 SUBJECTS IN THE IY AND EUC ARMS, RESPECTIVELY, COMPLETED THE STUDY. THERE WERE NO DIFFERENCES IN BP BETWEEN THE GROUPS AT 6 AND 12 WEEKS. IN THE EUC GROUP, 24-H SYSTOLIC BP (SBP), DIASTOLIC BP (DBP) AND MEAN ARTERIAL PRESSURE (MAP) SIGNIFICANTLY DECREASED BY 5, 3 AND 3 MMHG, RESPECTIVELY, FROM BASELINE AT 6 WEEKS (P < .05), BUT WERE NO LONGER SIGNIFICANT AT 12 WEEKS. IN THE IY GROUP, 24 H SBP WAS REDUCED BY 6 MMHG AT 12 WEEKS COMPARED TO BASELINE (P = .05). 24 H DBP (P < .01) AND MAP (P < .05) DECREASED SIGNIFICANTLY EACH BY 5 MMHG. NO DIFFERENCES WERE OBSERVED IN CATECHOLAMINE OR CORTISOL METABOLISM TO EXPLAIN THE DECREASE IN BP IN THE IY GROUP AT 12 WEEKS. TWELVE WEEKS OF IY PRODUCES CLINICALLY MEANINGFUL IMPROVEMENTS IN 24 H SBP AND DBP. LARGER STUDIES ARE NEEDED TO ESTABLISH THE LONG TERM EFFICACY, ACCEPTABILITY, UTILITY AND POTENTIAL MECHANISMS OF IY TO CONTROL BP. 2011