1 2325 144 TREATMENT OF MAJOR DEPRESSIVE DISORDER WITH IYENGAR YOGA AND COHERENT BREATHING: A RANDOMIZED CONTROLLED DOSING STUDY. OBJECTIVES: THE AIMS OF THIS STUDY WERE TO ASSESS THE EFFECTS OF AN INTERVENTION OF IYENGAR YOGA AND COHERENT BREATHING AT FIVE BREATHS PER MINUTE ON DEPRESSIVE SYMPTOMS AND TO DETERMINE OPTIMAL INTERVENTION YOGA DOSING FOR FUTURE STUDIES IN INDIVIDUALS WITH MAJOR DEPRESSIVE DISORDER (MDD). METHODS: SUBJECTS WERE RANDOMIZED TO THE HIGH-DOSE GROUP (HDG) OR LOW-DOSE GROUP (LDG) FOR A 12-WEEK INTERVENTION OF THREE OR TWO INTERVENTION CLASSES PER WEEK, RESPECTIVELY. ELIGIBLE SUBJECTS WERE 18-64 YEARS OLD WITH MDD, HAD BASELINE BECK DEPRESSION INVENTORY-II (BDI-II) SCORES >/=14, AND WERE EITHER ON NO ANTIDEPRESSANT MEDICATIONS OR ON A STABLE DOSE OF ANTIDEPRESSANTS FOR >/=3 MONTHS. THE INTERVENTION INCLUDED 90-MIN CLASSES PLUS HOMEWORK. OUTCOME MEASURES WERE BDI-II SCORES AND INTERVENTION COMPLIANCE. RESULTS: FIFTEEN HDG (MAGE = 38.4 +/- 15.1 YEARS) AND 15 LDG (MAGE = 34.7 +/- 10.4 YEARS) SUBJECTS COMPLETED THE INTERVENTION. BDI-II SCORES AT SCREENING AND COMPLIANCE DID NOT DIFFER BETWEEN GROUPS (P = 0.26). BDI-II SCORES DECLINED SIGNIFICANTLY FROM SCREENING (24.6 +/- 1.7) TO WEEK 12 (6.0 +/- 3.8) FOR THE HDG (-18.6 +/- 6.6; P < 0.001), AND FROM SCREENING (27.7 +/- 2.1) TO WEEK 12 (10.1 +/- 7.9) IN THE LDG (-17.7 +/- 9.3; P < 0.001). THERE WERE NO SIGNIFICANT DIFFERENCES BETWEEN GROUPS, BASED ON RESPONSE (I.E., >50% DECREASE IN BDI-II SCORES; P = 0.65) FOR THE HDG (13/15 SUBJECTS) AND LDG (11/15 SUBJECTS) OR REMISSION (I.E., NUMBER OF SUBJECTS WITH BDI-II SCORES <14; P = 1.00) FOR THE HDG (14/15 SUBJECTS) AND LDG (13/15 SUBJECTS) AFTER THE 12-WEEK INTERVENTION, ALTHOUGH A GREATER NUMBER OF SUBJECTS IN THE HDG HAD 12-WEEK BDI-II SCORES .05) BUT VITALITY WAS HIGHER (P = .01) IN THE YOGA GROUP COMPARED WITH THE CONTROL GROUP. AT 3 MONTHS POST-TREATMENT, FATIGUE WAS LOWER IN THE YOGA GROUP (P = .002), VITALITY WAS HIGHER (P = .01), AND IL-6 (P = .027), TNF-ALPHA (P = .027), AND IL-1BETA (P = .037) WERE LOWER FOR YOGA PARTICIPANTS COMPARED WITH THE CONTROL GROUP. GROUPS DID NOT DIFFER ON DEPRESSION AT EITHER TIME (P > .2). PLANNED SECONDARY ANALYSES SHOWED THAT THE FREQUENCY OF YOGA PRACTICE HAD STRONGER ASSOCIATIONS WITH FATIGUE AT BOTH POST-TREATMENT VISITS (P = .019; P < .001), AS WELL AS VITALITY (P = .016; P = .0045), BUT NOT DEPRESSION (P > .05) THAN SIMPLE GROUP ASSIGNMENT; MORE FREQUENT PRACTICE PRODUCED LARGER CHANGES. AT 3 MONTHS POST-TREATMENT, INCREASING YOGA PRACTICE ALSO LED TO A DECREASE IN IL-6 (P = .01) AND IL-1BETA (P = .03) PRODUCTION BUT NOT IN TNF-ALPHA PRODUCTION (P > .05). CONCLUSION: CHRONIC INFLAMMATION MAY FUEL DECLINES IN PHYSICAL FUNCTION LEADING TO FRAILTY AND DISABILITY. IF YOGA DAMPENS OR LIMITS BOTH FATIGUE AND INFLAMMATION, THEN REGULAR PRACTICE COULD HAVE SUBSTANTIAL HEALTH BENEFITS. 2014 3 1831 64 PSYCHOLOGICAL FUNCTION, IYENGAR YOGA, AND COHERENT BREATHING: A RANDOMIZED CONTROLLED DOSING STUDY. BACKGROUND: EVIDENCE SUGGESTS THAT YOGA MAY BE AN EFFECTIVE TREATMENT FOR MAJOR DEPRESSIVE DISORDER (MDD). STUDIES EVALUATING THE "DOSING" OF YOGA TREATMENT AND EFFICACY FOR MDD ARE NEEDED. THE GOAL OF THIS STUDY WAS TO ASSESS THE EFFECTS OF AN INTERVENTION COMBINING IYENGAR YOGA AND COHERENT BREATHING IN PARTICIPANTS WITH MDD AND DETERMINE THE OPTIMAL INTERVENTION DOSE. METHODS: THIRTY-TWO PARTICIPANTS (18 TO 65 Y OF AGE) DIAGNOSED WITH MDD WERE RANDOMIZED TO A HIGH-DOSE GROUP (HDG) OR A LOW-DOSE GROUP (LDG) OF YOGA AND COHERENT BREATHING FOR 12 WEEKS. THE HDG (N=15) INVOLVED THREE 90-MINUTE YOGA CLASSES AND FOUR 30-MINUTE HOMEWORK SESSIONS PER WEEK. THE LDG (N=15) INVOLVED TWO 90-MINUTE YOGA CLASSES AND THREE 30-MINUTE HOMEWORK SESSIONS PER WEEK. PARTICIPANTS WERE EVALUATED AT BASELINE, WEEK 4, WEEK 8, AND WEEK 12 WITH THE FOLLOWING INSTRUMENTS: POSITIVITY SELF-TEST, SPIELBERGER STATE ANXIETY INVENTORY, PATIENT HEALTH QUESTIONNAIRE-9, PITTSBURGH SLEEP QUALITY INDEX, AND EXERCISE-INDUCED FEELING INVENTORY. DATA WERE ANALYZED USING INTENT-TO-TREAT METHODS. RESULTS: SIGNIFICANT IMPROVEMENTS IN ALL OUTCOME MEASURES WERE FOUND FOR BOTH GROUPS, WITH ACUTE AND CUMULATIVE BENEFITS. ALTHOUGH THE HDG SHOWED GREATER IMPROVEMENTS ON ALL SCALES, BETWEEN-GROUP DIFFERENCES DID NOT REACH SIGNIFICANCE, POSSIBLY DUE TO LACK OF POWER BECAUSE OF THE SMALL SAMPLE SIZE. CUMULATIVE YOGA MINUTES WERE CORRELATED WITH IMPROVEMENT IN OUTCOME MEASURES. LIMITATION: THIS DOSING STUDY DID NOT INCLUDE A NON-YOGA CONTROL. CONCLUSIONS: IMPROVEMENT IN PSYCHOLOGICAL SYMPTOMS CORRELATED WITH CUMULATIVE YOGA PRACTICE. BOTH INTERVENTIONS REDUCED SYMPTOMS OF DEPRESSION AND ANXIETY AND INCREASED FEELINGS OF POSITIVITY. THE TIME COMMITMENT FOR YOGA PRACTICE NEEDS TO BE WEIGHED AGAINST BENEFITS WHEN DESIGNING YOGA INTERVENTIONS. 2019 4 163 46 A RANDOMIZED CONTROL TRIAL OF THE EFFECT OF YOGA ON GUNAS (PERSONALITY) AND HEALTH IN NORMAL HEALTHY VOLUNTEERS. OBJECTIVE: TO STUDY THE EFFICACY OF YOGA ON GUNA (YOGIC PERSONALITY MEASURE) AND GENERAL HEALTH IN NORMAL ADULTS. METHODS: OF THE 1228 PERSONS WHO ATTENDED INTRODUCTORY LECTURES, 226 SUBJECTS AGED 18-71 YEARS, OF BOTH SEXES, WHO SATISFIED THE INCLUSION AND EXCLUSION CRITERIA AND WHO CONSENTED TO PARTICIPATE IN THE STUDY WERE RANDOMLY ALLOCATED INTO TWO GROUPS. THE YOGA(Y) GROUP PRACTISED AN INTEGRATED YOGA MODULE THAT INCLUDED ASANAS, PRANAYAMA, MEDITATION, NOTIONAL CORRECTION AND DEVOTIONAL SESSIONS. THE CONTROL GROUP PRACTISED MILD TO MODERATE PHYSICAL EXERCISES (PE). BOTH GROUPS HAD SUPERVISED PRACTICE SESSIONS (BY TRAINED EXPERTS) FOR ONE HOUR DAILY, SIX DAYS A WEEK FOR EIGHT WEEKS. GUNA (YOGIC PERSONALITY) WAS ASSESSED BEFORE AND AFTER EIGHT WEEKS USING THE SELF-ADMINISTERED VEDIC PERSONALITY INVENTORY (VPI) WHICH ASSESSES SATTVA (GENTLE AND CONTROLLED), RAJAS (VIOLENT AND UNCONTROLLED) AND TAMAS (DULL AND UNCONTROLLED). THE GENERAL HEALTH STATUS (TOTAL HEALTH), WHICH INCLUDES FOUR DOMAINS NAMELY SOMATIC SYMPTOMS (SS), ANXIETY AND INSOMNIA (AI), SOCIAL DYSFUNCTION (SF) AND SEVERE DEPRESSION (SP), WAS ASSESSED USING A GENERAL HEALTH QUESTIONNAIRE (GHQ). RESULTS: BASELINE SCORES FOR ALL THE DOMAINS FOR BOTH THE GROUPS DID NOT DIFFER SIGNIFICANTLY (P > 0.05, INDEPENDENT SAMPLES T TEST). SATTVA SHOWED A SIGNIFICANT DIFFERENCE WITHIN THE GROUPS AND THE EFFECT SIZE WAS MORE IN THE Y THAN IN THE PE GROUP. RAJAS SHOWED A SIGNIFICANT DECREASE WITHIN AND BETWEEN THE GROUPS WITH A HIGHER EFFECT SIZE IN THE PE GROUP. TAMAS SHOWED SIGNIFICANT REDUCTION WITHIN THE PE GROUP ONLY. THE GHQ REVEALED THAT THERE WAS SIGNIFICANT DECREASE IN SS, AI, SF AND SP IN BOTH Y AND PE GROUPS (WILCOXCON SINGED RANK T TEST). SS SHOWED A SIGNIFICANT DIFFERENCE BETWEEN THE GROUPS (MANN WHITNEY U TEST). CONCLUSIONS: THERE WAS AN IMPROVEMENT IN SATTVA IN BOTH THE YOGA AND CONTROL GROUPS WITH A TREND OF HIGHER EFFECT SIZE IN YOGA; RAJAS REDUCED IN BOTH BUT SIGNIFICANTLY BETTER IN PE THAN IN YOGA AND TAMAS REDUCED IN PE. THE GENERAL HEALTH STATUS IMPROVED IN BOTH THE YOGA AND CONTROL GROUPS. 2008 5 165 44 A RANDOMIZED CONTROL TRIAL OF THE EFFECT OF YOGA ON VERBAL AGGRESSIVENESS IN NORMAL HEALTHY VOLUNTEERS. OBJECTIVE: TO STUDY THE EFFECT OF YOGA ON VERBAL AGGRESSIVENESS IN NORMAL HEALTHY ADULTS. METHODS: OF THE 1228 PERSONS WHO ATTENDED INTRODUCTORY LECTURES, 226 SUBJECTS OF BOTH SEXES WHO SATISFIED THE INCLUSION AND EXCLUSION CRITERIA AND WHO CONSENTED TO PARTICIPATE IN THE STUDY WERE RANDOMLY ALLOCATED INTO TWO GROUPS. THESE 226 SUBJECTS WERE BETWEEN THE AGES OF 17 AND 62 YEARS AND 173/226 COMPLETED THE EIGHT WEEKS OF INTERVENTION. THE YOGA (Y) GROUP PRACTISED AN INTEGRATED YOGA MODULE THAT INCLUDED ASANAS, PRANAYAMA, MEDITATION, NOTIONAL CORRECTION, AND DEVOTIONAL SESSIONS. THE CONTROL GROUP PRACTISED MILD TO MODERATE PHYSICAL EXERCISES (PE). BOTH GROUPS HAD SUPERVISED PRACTICES (BY TRAINED EXPERTS) FOR ONE HOUR DAILY, SIX DAYS A WEEK FOR EIGHT WEEKS. VERBAL AGGRESSIVENESS WAS ASSESSED BEFORE AND AFTER EIGHT WEEKS USING THE SELF-ADMINISTERED VERBAL AGGRESSIVE SCALE. RESULTS: THE BASELINE SCORE OF THE TWO GROUPS DID NOT DIFFER SIGNIFICANTLY (P = 0.66). THERE WAS A SIGNIFICANT DECREASE IN VERBAL AGGRESSIVENESS IN THE YOGA GROUP (P = 0.01 PAIRED SAMPLES T-TEST) WITH A NONSIGNIFICANT INCREASE IN THE PE GROUP. ANCOVA USING PRE- VALUES AS COVARIATES SHOWED A SIGNIFICANT DIFFERENCE BETWEEN THE GROUPS (P = 0.013). RMANOVA FOR INTERACTION BETWEEN THE SEXES OR AGE GROUPS IN CHANGE SCORES WERE NOT SIGNIFICANT. CONCLUSIONS: THIS STUDY HAS DEMONSTRATED THAT AN EIGHT WEEK INTERVENTION OF AN INTEGRATED YOGA MODULE DECREASED VERBAL AGGRESSIVENESS IN THE YOGA GROUP (IN MALES AND THOSE BELOW 25 YEARS OF AGE), WITH A NONSIGNIFICANT INCREASE IN THE PE GROUP. 2008 6 2318 50 TREATING MAJOR DEPRESSION WITH YOGA: A PROSPECTIVE, RANDOMIZED, CONTROLLED PILOT TRIAL. BACKGROUND: CONVENTIONAL PHARMACOTHERAPIES AND PSYCHOTHERAPIES FOR MAJOR DEPRESSION ARE ASSOCIATED WITH LIMITED ADHERENCE TO CARE AND RELATIVELY LOW REMISSION RATES. YOGA MAY OFFER AN ALTERNATIVE TREATMENT OPTION, BUT RIGOROUS STUDIES ARE FEW. THIS RANDOMIZED CONTROLLED TRIAL WITH BLINDED OUTCOME ASSESSORS EXAMINED AN 8-WEEK HATHA YOGA INTERVENTION AS MONO-THERAPY FOR MILD-TO-MODERATE MAJOR DEPRESSION. METHODS: INVESTIGATORS RECRUITED 38 ADULTS IN SAN FRANCISCO MEETING CRITERIA FOR MAJOR DEPRESSION OF MILD-TO-MODERATE SEVERITY, PER STRUCTURED PSYCHIATRIC INTERVIEW AND SCORES OF 14-28 ON BECK DEPRESSION INVENTORY-II (BDI). AT SCREENING, INDIVIDUALS ENGAGED IN PSYCHOTHERAPY, ANTIDEPRESSANT PHARMACOTHERAPY, HERBAL OR NUTRACEUTICAL MOOD THERAPIES, OR MIND-BODY PRACTICES WERE EXCLUDED. PARTICIPANTS WERE 68% FEMALE, WITH MEAN AGE 43.4 YEARS (SD = 14.8, RANGE = 22-72), AND MEAN BDI SCORE 22.4 (SD = 4.5). TWENTY PARTICIPANTS WERE RANDOMIZED TO 90-MINUTE HATHA YOGA PRACTICE GROUPS TWICE WEEKLY FOR 8 WEEKS. EIGHTEEN PARTICIPANTS WERE RANDOMIZED TO 90-MINUTE ATTENTION CONTROL EDUCATION GROUPS TWICE WEEKLY FOR 8 WEEKS. CERTIFIED YOGA INSTRUCTORS DELIVERED BOTH INTERVENTIONS AT A UNIVERSITY CLINIC. PRIMARY OUTCOME WAS DEPRESSION SEVERITY, MEASURED BY BDI SCORES EVERY 2 WEEKS FROM BASELINE TO 8 WEEKS. SECONDARY OUTCOMES WERE SELF-EFFICACY AND SELF-ESTEEM, MEASURED BY SCORES ON THE GENERAL SELF-EFFICACY SCALE (GSES) AND ROSENBERG SELF-ESTEEM SCALE (RSES) AT BASELINE AND AT 8 WEEKS. RESULTS: IN INTENT-TO-TREAT ANALYSIS, YOGA PARTICIPANTS EXHIBITED SIGNIFICANTLY GREATER 8-WEEK DECLINE IN BDI SCORES THAN CONTROLS (P-VALUE = 0.034). IN SUB-ANALYSES OF PARTICIPANTS COMPLETING FINAL 8-WEEK MEASURES, YOGA PARTICIPANTS WERE MORE LIKELY TO ACHIEVE REMISSION, DEFINED PER FINAL BDI SCORE /= 80% OF YOGA PARTICIPANTS REPORTING AVERAGE SLEEP ONSET LATENCY < 30 MINUTES AND SLEEP EFFICIENCY > 80% AT 6-MONTH FOLLOW-UP. FOR OVER 50% OF YOGA PARTICIPANTS, THE INSOMNIA SEVERITY INDEX DECREASED BY AT LEAST 8 POINTS AT END OF TREATMENT AND FOLLOW-UP. CONCLUSIONS: YOGA, TAUGHT IN A SELF-CARE FRAMEWORK WITH MINIMAL INSTRUCTOR BURDEN, WAS ASSOCIATED WITH SELF-REPORTED IMPROVEMENTS ABOVE AND BEYOND AN ACTIVE SLEEP HYGIENE COMPARISON, SUSTAINED AT 6-MONTH FOLLOW-UP. FOLLOW-UP STUDIES ARE NEEDED TO ASSESS ACTIGRAPHY AND POLYSOMNOGRAPHY OUTCOMES, AS WELL AS POSSIBLE MECHANISMS OF CHANGE. CLINICAL TRIAL REGISTRATION: REGISTRY: CLINICALTRIALS.GOV; NAME: YOGA AS A TREATMENT FOR INSOMNIA; URL: HTTPS://CLINICALTRIALS.GOV/CT2/SHOW/NCT00033865; IDENTIFIER: NCT00033865. CITATION: KHALSA SBS, GOLDSTEIN MR. TREATMENT OF CHRONIC PRIMARY SLEEP ONSET INSOMNIA WITH KUNDALINI YOGA: A RANDOMIZED CONTROLLED TRIAL WITH ACTIVE SLEEP HYGIENE COMPARISON. J CLIN SLEEP MED. 2021;17(9):1841-1852. 2021 11 74 39 A GROUP-BASED YOGA THERAPY INTERVENTION FOR URINARY INCONTINENCE IN WOMEN: A PILOT RANDOMIZED TRIAL. OBJECTIVE: THE AIM OF THIS STUDY IS TO EXAMINE THE FEASIBILITY, EFFICACY, AND SAFETY OF A GROUP-BASED YOGA THERAPY INTERVENTION FOR MIDDLE-AGED AND OLDER WOMEN WITH URINARY INCONTINENCE. METHODS: WE CONDUCTED A PILOT RANDOMIZED TRIAL OF AMBULATORY WOMEN AGED 40 YEARS AND OLDER WITH STRESS, URGENCY, OR MIXED-TYPE INCONTINENCE. WOMEN WERE RANDOMIZED TO A 6-WEEK YOGA THERAPY PROGRAM (N = 10) CONSISTING OF TWICE WEEKLY GROUP CLASSES AND ONCE WEEKLY HOME PRACTICE OR A WAIT-LIST CONTROL GROUP (N = 9). ALL PARTICIPANTS ALSO RECEIVED WRITTEN PAMPHLETS ABOUT STANDARD BEHAVIORAL SELF-MANAGEMENT STRATEGIES FOR INCONTINENCE. CHANGES IN INCONTINENCE WERE ASSESSED WITH 7-DAY VOIDING DIARIES. RESULTS: THE MEAN (SD) AGE WAS 61.4 (8.2) YEARS, AND THE MEAN BASELINE FREQUENCY OF INCONTINENCE WAS 2.5 (1.3) EPISODES/D. AFTER 6 WEEKS, THE TOTAL INCONTINENCE FREQUENCY DECREASED BY 70% (1.8 [0.9] FEWER EPISODES/D) IN THE YOGA THERAPY VERSUS 13% (0.3 [1.7] FEWER EPISODES/D) IN THE CONTROL GROUP (P = 0.049). PARTICIPANTS IN THE YOGA THERAPY GROUP ALSO REPORTED AN AVERAGE OF 71% DECREASE IN STRESS INCONTINENCE FREQUENCY (0.7 [0.8] FEWER EPISODES/D) COMPARED WITH A 25% INCREASE IN CONTROLS (0.2 [1.1] MORE EPISODES/D) (P = 0.039). NO SIGNIFICANT DIFFERENCES IN REDUCTION IN URGENCY INCONTINENCE WERE DETECTED BETWEEN THE YOGA THERAPY VERSUS CONTROL GROUPS (1.0 [1.0] VERSUS 0.5 [0.5] FEWER EPISODES/D; P = 0.20). ALL WOMEN STARTING THE YOGA THERAPY PROGRAM COMPLETED AT LEAST 90% OF THE GROUP CLASSES AND PRACTICE SESSIONS. TWO PARTICIPANTS IN EACH GROUP REPORTED ADVERSE EVENTS UNRELATED TO THE INTERVENTION. CONCLUSIONS: FINDINGS PROVIDE PRELIMINARY EVIDENCE TO SUPPORT THE FEASIBILITY, EFFICACY, AND SAFETY OF A GROUP-BASED YOGA THERAPY INTERVENTION TO IMPROVE URINARY INCONTINENCE IN WOMEN. 2014 12 521 42 COMPARING YOGA, EXERCISE, AND A SELF-CARE BOOK FOR CHRONIC LOW BACK PAIN: A RANDOMIZED, CONTROLLED TRIAL. BACKGROUND: CHRONIC LOW BACK PAIN IS A COMMON PROBLEM THAT HAS ONLY MODESTLY EFFECTIVE TREATMENT OPTIONS. OBJECTIVE: TO DETERMINE WHETHER YOGA IS MORE EFFECTIVE THAN CONVENTIONAL THERAPEUTIC EXERCISE OR A SELF-CARE BOOK FOR PATIENTS WITH CHRONIC LOW BACK PAIN. DESIGN: RANDOMIZED, CONTROLLED TRIAL. SETTING: A NONPROFIT, INTEGRATED HEALTH CARE SYSTEM. PATIENTS: 101 ADULTS WITH CHRONIC LOW BACK PAIN. INTERVENTION: 12-WEEK SESSIONS OF YOGA OR CONVENTIONAL THERAPEUTIC EXERCISE CLASSES OR A SELF-CARE BOOK. MEASUREMENTS: PRIMARY OUTCOMES WERE BACK-RELATED FUNCTIONAL STATUS (MODIFIED 24-POINT ROLAND DISABILITY SCALE) AND "BOTHERSOMENESS" OF PAIN (11-POINT NUMERICAL SCALE). THE PRIMARY TIME POINT WAS 12 WEEKS. CLINICALLY SIGNIFICANT CHANGE WAS CONSIDERED TO BE 2.5 POINTS ON THE FUNCTIONAL STATUS SCALE AND 1.5 POINTS ON THE BOTHERSOMENESS SCALE. SECONDARY OUTCOMES WERE DAYS OF RESTRICTED ACTIVITY, GENERAL HEALTH STATUS, AND MEDICATION USE. RESULTS: AFTER ADJUSTMENT FOR BASELINE VALUES, BACK-RELATED FUNCTION IN THE YOGA GROUP WAS SUPERIOR TO THE BOOK AND EXERCISE GROUPS AT 12 WEEKS (YOGA VS. BOOK: MEAN DIFFERENCE, -3.4 [95% CI, -5.1 TO - 1.6] [P < 0.001]; YOGA VS. EXERCISE: MEAN DIFFERENCE, -1.8 [CI, -3.5 TO - 0.1] [P = 0.034]). NO SIGNIFICANT DIFFERENCES IN SYMPTOM BOTHERSOMENESS WERE FOUND BETWEEN ANY 2 GROUPS AT 12 WEEKS; AT 26 WEEKS, THE YOGA GROUP WAS SUPERIOR TO THE BOOK GROUP WITH RESPECT TO THIS MEASURE (MEAN DIFFERENCE, -2.2 [CI, -3.2 TO - 1.2]; P < 0.001). AT 26 WEEKS, BACK-RELATED FUNCTION IN THE YOGA GROUP WAS SUPERIOR TO THE BOOK GROUP (MEAN DIFFERENCE, -3.6 [CI, -5.4 TO - 1.8]; P < 0.001). LIMITATIONS: PARTICIPANTS IN THIS STUDY WERE FOLLOWED FOR ONLY 26 WEEKS AFTER RANDOMIZATION. ONLY 1 INSTRUCTOR DELIVERED EACH INTERVENTION. CONCLUSIONS: YOGA WAS MORE EFFECTIVE THAN A SELF-CARE BOOK FOR IMPROVING FUNCTION AND REDUCING CHRONIC LOW BACK PAIN, AND THE BENEFITS PERSISTED FOR AT LEAST SEVERAL MONTHS. 2005 13 2596 52 YOGA FOR MILITARY VETERANS WITH CHRONIC LOW BACK PAIN: A RANDOMIZED CLINICAL TRIAL. INTRODUCTION: CHRONIC LOW BACK PAIN (CLBP) IS PREVALENT, ESPECIALLY AMONG MILITARY VETERANS. MANY CLBP TREATMENT OPTIONS HAVE LIMITED BENEFITS AND ARE ACCOMPANIED BY SIDE EFFECTS. MAJOR EFFORTS TO REDUCE OPIOID USE AND EMBRACE NONPHARMACOLOGICAL PAIN TREATMENTS HAVE RESULTED. RESEARCH WITH COMMUNITY CLBP PATIENTS INDICATES THAT YOGA CAN IMPROVE HEALTH OUTCOMES AND HAS FEW SIDE EFFECTS. THE BENEFITS OF YOGA AMONG MILITARY VETERANS WERE EXAMINED. DESIGN: PARTICIPANTS WERE RANDOMIZED TO EITHER YOGA OR DELAYED YOGA TREATMENT IN 2013-2015. OUTCOMES WERE ASSESSED AT BASELINE, 6 WEEKS, 12 WEEKS, AND 6 MONTHS. INTENTION-TO-TREAT ANALYSES OCCURRED IN 2016. SETTING/PARTICIPANTS: ONE HUNDRED AND FIFTY MILITARY VETERANS WITH CLBP WERE RECRUITED FROM A MAJOR VETERANS AFFAIRS MEDICAL CENTER IN CALIFORNIA. INTERVENTION: YOGA CLASSES (WITH HOME PRACTICE) WERE LED BY A CERTIFIED INSTRUCTOR TWICE WEEKLY FOR 12 WEEKS, AND CONSISTED PRIMARILY OF PHYSICAL POSTURES, MOVEMENT, AND BREATHING TECHNIQUES. MAIN OUTCOME MEASURES: THE PRIMARY OUTCOME WAS ROLAND-MORRIS DISABILITY QUESTIONNAIRE SCORES AFTER 12 WEEKS. PAIN INTENSITY WAS IDENTIFIED AS AN IMPORTANT SECONDARY OUTCOME. RESULTS: PARTICIPANT CHARACTERISTICS WERE MEAN AGE 53 YEARS, 26% WERE FEMALE, 35% WERE UNEMPLOYED OR DISABLED, AND MEAN BACK PAIN DURATION WAS 15 YEARS. IMPROVEMENTS IN ROLAND-MORRIS DISABILITY QUESTIONNAIRE SCORES DID NOT DIFFER BETWEEN THE TWO GROUPS AT 12 WEEKS, BUT YOGA PARTICIPANTS HAD GREATER REDUCTIONS IN ROLAND-MORRIS DISABILITY QUESTIONNAIRE SCORES THAN DELAYED TREATMENT PARTICIPANTS AT 6 MONTHS -2.48 (95% CI= -4.08, -0.87). YOGA PARTICIPANTS IMPROVED MORE ON PAIN INTENSITY AT 12 WEEKS AND AT 6 MONTHS. OPIOID MEDICATION USE DECLINED AMONG ALL PARTICIPANTS, BUT GROUP DIFFERENCES WERE NOT FOUND. CONCLUSIONS: YOGA IMPROVED HEALTH OUTCOMES AMONG VETERANS DESPITE EVIDENCE THEY HAD FEWER RESOURCES, WORSE HEALTH, AND MORE CHALLENGES ATTENDING YOGA SESSIONS THAN COMMUNITY SAMPLES STUDIED PREVIOUSLY. THE MAGNITUDE OF PAIN INTENSITY DECLINE WAS SMALL, BUT OCCURRED IN THE CONTEXT OF REDUCED OPIOID USE. THE FINDINGS SUPPORT WIDER IMPLEMENTATION OF YOGA PROGRAMS FOR VETERANS. TRIAL REGISTRATION: THIS STUDY IS REGISTERED AT WWW.CLINICALTRIALS.GOV NCT02524158. 2017 14 518 38 COMPARING ONCE- VERSUS TWICE-WEEKLY YOGA CLASSES FOR CHRONIC LOW BACK PAIN IN PREDOMINANTLY LOW INCOME MINORITIES: A RANDOMIZED DOSING TRIAL. BACKGROUND. PREVIOUS STUDIES HAVE DEMONSTRATED THAT ONCE-WEEKLY YOGA CLASSES ARE EFFECTIVE FOR CHRONIC LOW BACK PAIN (CLBP) IN WHITE ADULTS WITH HIGH SOCIOECONOMIC STATUS. THE COMPARATIVE EFFECTIVENESS OF TWICE-WEEKLY CLASSES AND GENERALIZABILITY TO RACIALLY DIVERSE LOW INCOME POPULATIONS ARE UNKNOWN. METHODS. WE CONDUCTED A 12-WEEK RANDOMIZED, PARALLEL-GROUP, DOSING TRIAL FOR 95 ADULTS RECRUITED FROM AN URBAN SAFETY-NET HOSPITAL AND FIVE COMMUNITY HEALTH CENTERS COMPARING ONCE-WEEKLY (N = 49) VERSUS TWICE-WEEKLY (N = 46) STANDARDIZED YOGA CLASSES SUPPLEMENTED BY HOME PRACTICE. PRIMARY OUTCOMES WERE CHANGE FROM BASELINE TO 12 WEEKS IN PAIN (11-POINT SCALE) AND BACK-RELATED FUNCTION (23-POINT MODIFIED ROLAND-MORRIS DISABILITY QUESTIONNAIRE). RESULTS. 82% OF PARTICIPANTS WERE NONWHITE; 77% HAD ANNUAL HOUSEHOLD INCOMES <$40,000. THE SAMPLE'S BASELINE MEAN PAIN INTENSITY [6.9 (SD 1.6)] AND FUNCTION [13.7 (SD 5.0)] REFLECTED MODERATE TO SEVERE BACK PAIN AND IMPAIRMENT. PAIN AND BACK-RELATED FUNCTION IMPROVED WITHIN BOTH GROUPS (P < 0.001). HOWEVER, THERE WERE NO DIFFERENCES BETWEEN ONCE-WEEKLY AND TWICE-WEEKLY GROUPS FOR PAIN REDUCTION [-2.1 (95% CI -2.9, -1.3) VERSUS -2.4 (95% CI -3.1, -1.8), P = 0.62] OR BACK-RELATED FUNCTION [-5.1 (95% CI -7.0, -3.2) VERSUS -4.9 (95% CI -6.5, -3.3), P = 0.83]. CONCLUSIONS. TWELVE WEEKS OF ONCE-WEEKLY OR TWICE-WEEKLY YOGA CLASSES WERE SIMILARLY EFFECTIVE FOR PREDOMINANTLY LOW INCOME MINORITY ADULTS WITH MODERATE TO SEVERE CHRONIC LOW BACK PAIN. THIS TRIAL IS REGISTERED WITH CLINICALTRIALS.GOV NCT01761617. 2013 15 243 46 A YOGA & EXERCISE RANDOMIZED CONTROLLED TRIAL FOR VASOMOTOR SYMPTOMS: EFFECTS ON HEART RATE VARIABILITY. OBJECTIVES: HEART RATE VARIABILITY (HRV) REFLECTS THE INTEGRATION OF THE PARASYMPATHETIC NERVOUS SYSTEM WITH THE REST OF THE BODY. STUDIES ON THE EFFECTS OF YOGA AND EXERCISE ON HRV HAVE BEEN MIXED BUT SUGGEST THAT EXERCISE INCREASES HRV. WE CONDUCTED A SECONDARY ANALYSIS OF THE EFFECT OF YOGA AND EXERCISE ON HRV BASED ON A RANDOMIZED CLINICAL TRIAL OF TREATMENTS FOR VASOMOTOR SYMPTOMS IN PERI/POST-MENOPAUSAL WOMEN. DESIGN: RANDOMIZED CLINICAL TRIAL OF BEHAVIORAL INTERVENTIONS IN WOMEN WITH VASOMOTOR SYMPTOMS (N=335), 40-62 YEARS OLD FROM THREE CLINICAL STUDY SITES. INTERVENTIONS: 12-WEEKS OF A YOGA PROGRAM, DESIGNED SPECIFICALLY FOR MID-LIFE WOMEN, OR A SUPERVISED AEROBIC EXERCISE-TRAINING PROGRAM WITH SPECIFIC INTENSITY AND ENERGY EXPENDITURE GOALS, COMPARED TO A USUAL ACTIVITY GROUP. MAIN OUTCOME MEASURES: TIME AND FREQUENCY DOMAIN HRV MEASURED AT BASELINE AND AT 12 WEEKS FOR 15MIN USING HOLTER MONITORS. RESULTS: WOMEN HAD A MEDIAN OF 7.6 VASOMOTOR SYMPTOMS PER 24H. TIME AND FREQUENCY DOMAIN HRV MEASURES DID NOT CHANGE SIGNIFICANTLY IN EITHER OF THE INTERVENTION GROUPS COMPARED TO THE CHANGE IN THE USUAL ACTIVITY GROUP. HRV RESULTS DID NOT DIFFER WHEN THE ANALYSES WERE RESTRICTED TO POST-MENOPAUSAL WOMEN. CONCLUSIONS: ALTHOUGH YOGA AND EXERCISE HAVE BEEN SHOWN TO INCREASE PARASYMPATHETIC-MEDIATED HRV IN OTHER POPULATIONS, NEITHER INTERVENTION INCREASED HRV IN MIDDLE-AGED WOMEN WITH VASOMOTOR SYMPTOMS. MIXED RESULTS IN PREVIOUS RESEARCH MAY BE DUE TO SAMPLE DIFFERENCES. YOGA AND EXERCISE LIKELY IMPROVE SHORT-TERM HEALTH IN MIDDLE-AGED WOMEN THROUGH MECHANISMS OTHER THAN HRV. 2016 16 193 36 A RANDOMIZED TRIAL COMPARING YOGA, STRETCHING, AND A SELF-CARE BOOK FOR CHRONIC LOW BACK PAIN. BACKGROUND: CHRONIC LOW BACK PAIN IS A COMMON PROBLEM LACKING HIGHLY EFFECTIVE TREATMENT OPTIONS. SMALL TRIALS SUGGEST THAT YOGA MAY HAVE BENEFITS FOR THIS CONDITION. THIS TRIAL WAS DESIGNED TO DETERMINE WHETHER YOGA IS MORE EFFECTIVE THAN CONVENTIONAL STRETCHING EXERCISES OR A SELF-CARE BOOK FOR PRIMARY CARE PATIENTS WITH CHRONIC LOW BACK PAIN. METHODS: A TOTAL OF 228 ADULTS WITH CHRONIC LOW BACK PAIN WERE RANDOMIZED TO 12 WEEKLY CLASSES OF YOGA (92 PATIENTS) OR CONVENTIONAL STRETCHING EXERCISES (91 PATIENTS) OR A SELF-CARE BOOK (45 PATIENTS). BACK-RELATED FUNCTIONAL STATUS (MODIFIED ROLAND DISABILITY QUESTIONNAIRE, A 23-POINT SCALE) AND BOTHERSOMENESS OF PAIN (AN 11-POINT NUMERICAL SCALE) AT 12 WEEKS WERE THE PRIMARY OUTCOMES. OUTCOMES WERE ASSESSED AT BASELINE, 6, 12, AND 26 WEEKS BY INTERVIEWERS UNAWARE OF TREATMENT GROUP. RESULTS: AFTER ADJUSTMENT FOR BASELINE VALUES, 12-WEEK OUTCOMES FOR THE YOGA GROUP WERE SUPERIOR TO THOSE FOR THE SELF-CARE GROUP (MEAN DIFFERENCE FOR FUNCTION, -2.5 [95% CI, -3.7 TO -1.3]; P < .001; MEAN DIFFERENCE FOR SYMPTOMS, -1.1 [95% CI, -1.7 TO -0.4]; P < .001). AT 26 WEEKS, FUNCTION FOR THE YOGA GROUP REMAINED SUPERIOR (MEAN DIFFERENCE, -1.8 [95% CI, -3.1 TO -0.5]; P < .001). YOGA WAS NOT SUPERIOR TO CONVENTIONAL STRETCHING EXERCISES AT ANY TIME POINT. CONCLUSION: YOGA CLASSES WERE MORE EFFECTIVE THAN A SELF-CARE BOOK, BUT NOT MORE EFFECTIVE THAN STRETCHING CLASSES, IN IMPROVING FUNCTION AND REDUCING SYMPTOMS DUE TO CHRONIC LOW BACK PAIN, WITH BENEFITS LASTING AT LEAST SEVERAL MONTHS. TRIAL REGISTRATION: CLINICALTRIALS.GOV IDENTIFIER: NCT00447668. 2011 17 461 42 CHANGES IN PERCEIVED STRESS AFTER YOGA, PHYSICAL THERAPY, AND EDUCATION INTERVENTIONS FOR CHRONIC LOW BACK PAIN: A SECONDARY ANALYSIS OF A RANDOMIZED CONTROLLED TRIAL. OBJECTIVE: PERCEIVED STRESS AND MUSCULOSKELETAL PAIN ARE COMMON, ESPECIALLY IN LOW-INCOME POPULATIONS. STUDIES EVALUATING TREATMENTS TO REDUCE STRESS IN PATIENTS WITH CHRONIC PAIN ARE LACKING. WE AIMED TO QUANTIFY THE EFFECT OF TWO EVIDENCE-BASED INTERVENTIONS FOR CHRONIC LOW BACK PAIN (CLBP), YOGA AND PHYSICAL THERAPY (PT), ON PERCEIVED STRESS IN ADULTS WITH CLBP. METHODS: WE USED DATA FROM AN ASSESSOR-BLINDED, PARALLEL-GROUP RANDOMIZED CONTROLLED TRIAL, WHICH RECRUITED PREDOMINANTLY LOW-INCOME AND RACIALLY DIVERSE ADULTS WITH CLBP. PARTICIPANTS (N = 320) WERE RANDOMLY ASSIGNED TO 12 WEEKS OF YOGA, PT, OR BACK PAIN EDUCATION. WE COMPARED CHANGES IN THE 10-ITEM PERCEIVED STRESS SCALE (PSS-10) FROM BASELINE TO 12- AND 52-WEEK FOLLOW-UP AMONG YOGA AND PT PARTICIPANTS WITH THOSE RECEIVING EDUCATION. SUBANALYSES WERE CONDUCTED FOR PARTICIPANTS WITH ELEVATED PRE-INTERVENTION PERCEIVED STRESS (PSS-10 SCORE >/=17). WE CONDUCTED SENSITIVITY ANALYSES USING VARIOUS IMPUTATION METHODS TO ACCOUNT FOR POTENTIAL BIASES IN OUR ESTIMATES DUE TO MISSING DATA. RESULTS: AMONG 248 PARTICIPANTS (MEAN AGE = 46.4 YEARS, 80% NONWHITE) COMPLETING ALL THREE SURVEYS, YOGA AND PT SHOWED GREATER REDUCTIONS IN PSS-10 SCORES COMPARED WITH EDUCATION AT 12 WEEKS (MEAN BETWEEN-GROUP DIFFERENCE = -2.6, 95% CONFIDENCE INTERVAL [CI] = -4.5 TO -0.66, AND MEAN BETWEEN-GROUP DIFFERENCE = -2.4, 95% CI = -4.4 TO -0.48, RESPECTIVELY). THIS EFFECT WAS STRONGER AMONG PARTICIPANTS WITH ELEVATED PRE-INTERVENTION PERCEIVED STRESS. BETWEEN-GROUP EFFECTS HAD ATTENUATED BY 52 WEEKS. RESULTS WERE SIMILAR IN SENSITIVITY ANALYSES. CONCLUSIONS: YOGA AND PT WERE MORE EFFECTIVE THAN BACK PAIN EDUCATION FOR REDUCING PERCEIVED STRESS AMONG LOW-INCOME ADULTS WITH CLBP. 2020 18 2415 44 YOGA AND MEDITATION FOR MENOPAUSAL SYMPTOMS IN BREAST CANCER SURVIVORS-A RANDOMIZED CONTROLLED TRIAL. BACKGROUND: BREAST CANCER SURVIVORS HAVE ONLY VERY LIMITED TREATMENT OPTIONS FOR MENOPAUSAL SYMPTOMS. THE OBJECTIVE OF THIS TRIAL WAS TO EVALUATE THE EFFECTS OF A 12-WEEK TRADITIONAL HATHA YOGA AND MEDITATION INTERVENTION ON MENOPAUSAL SYMPTOMS IN BREAST CANCER SURVIVORS. METHODS: PATIENTS WERE RANDOMLY ASSIGNED EITHER TO A 12-WEEK YOGA AND MEDITATION INTERVENTION OR TO USUAL CARE. THE PRIMARY OUTCOME MEASURE WAS TOTAL MENOPAUSAL SYMPTOMS (MENOPAUSE RATING SCALE [MRS] TOTAL SCORE). SECONDARY OUTCOME MEASURES INCLUDED MRS SUBSCALES, QUALITY OF LIFE (FUNCTIONAL ASSESSMENT OF CANCER THERAPY-BREAST), FATIGUE (FUNCTIONAL ASSESSMENT OF CHRONIC ILLNESS THERAPY-FATIGUE), DEPRESSION, AND ANXIETY (HOSPITAL ANXIETY AND DEPRESSION SCALE). OUTCOMES WERE ASSESSED AT WEEK 12 AND WEEK 24 AFTER RANDOMIZATION. RESULTS: IN TOTAL, 40 WOMEN (MEAN AGE +/- STANDARD DEVIATION, 49.2 +/- 5.9 YEARS) WERE RANDOMIZED TO YOGA (N = 19) OR TO USUAL CARE (N = 21). WOMEN IN THE YOGA GROUP REPORTED SIGNIFICANTLY LOWER TOTAL MENOPAUSAL SYMPTOMS COMPARED WITH THE USUAL CARE GROUP AT WEEK 12 (MEAN DIFFERENCE, -5.6; 95% CONFIDENCE INTERVAL, -9.2 TO -1.9; P = .004) AND AT WEEK 24 (MEAN DIFFERENCE, -4.5; 95% CONFIDENCE INTERVAL, -8.3 TO -0.7; P = .023). AT WEEK 12, THE YOGA GROUP REPORTED LESS SOMATOVEGETATIVE, PSYCHOLOGICAL, AND UROGENITAL MENOPAUSAL SYMPTOMS; LESS FATIGUE; AND IMPROVED QUALITY OF LIFE (ALL P < .05). AT WEEK 24, ALL EFFECTS PERSISTED EXCEPT FOR PSYCHOLOGICAL MENOPAUSAL SYMPTOMS. SHORT-TERM EFFECTS ON MENOPAUSAL SYMPTOMS REMAINED SIGNIFICANT WHEN ONLY WOMEN WHO WERE RECEIVING ANTIESTROGEN MEDICATION (N = 36) WERE ANALYZED. SIX MINOR ADVERSE EVENTS OCCURRED IN EACH GROUP. CONCLUSIONS: YOGA COMBINED WITH MEDITATION CAN BE CONSIDERED A SAFE AND EFFECTIVE COMPLEMENTARY INTERVENTION FOR MENOPAUSAL SYMPTOMS IN BREAST CANCER SURVIVORS. THE EFFECTS SEEM TO PERSIST FOR AT LEAST 3 MONTHS. 2015 19 1699 40 PARTICIPANT CHARACTERISTICS ASSOCIATED WITH SYMPTOMATIC IMPROVEMENT FROM YOGA FOR CHRONIC LOW BACK PAIN. CONTEXT: STUDIES SUGGEST THAT YOGA IS EFFECTIVE FOR MODERATE TO SEVERE CHRONIC LOW BACK PAIN (CLBP) IN DIVERSE PREDOMINANTLY LOWER SOCIOECONOMIC STATUS POPULATIONS. HOWEVER, LITTLE IS KNOWN ABOUT FACTORS ASSOCIATED WITH BENEFIT FROM THE YOGA INTERVENTION. OBJECTIVE: IDENTIFY FACTORS AT BASELINE INDEPENDENTLY ASSOCIATED WITH GREATER EFFICACY AMONG PARTICIPANTS IN A STUDY OF YOGA FOR CLBP. DESIGN: FROM SEPTEMBER-DECEMBER 2011, A 12-WEEK RANDOMIZED DOSING TRIAL WAS CONDUCTED COMPARING WEEKLY VS. TWICE-WEEKLY 75-MINUTE HATHA YOGA CLASSES FOR 95 PREDOMINANTLY LOW-INCOME MINORITY ADULTS WITH NONSPECIFIC CLBP. PARTICIPANT CHARACTERISTICS COLLECTED AT BASELINE WERE USED TO DETERMINE FACTORS BEYOND TREATMENT ASSIGNMENT (REPORTED IN THE INITIAL STUDY) THAT PREDICTED OUTCOME. WE USED BIVARIATE TESTING TO IDENTIFY BASELINE CHARACTERISTICS ASSOCIATED WITH IMPROVEMENT IN FUNCTION AND PAIN, AND INCLUDED SELECT FACTORS IN A MULTIVARIATE LINEAR REGRESSION. SETTING: RECRUITMENT AND CLASSES OCCURRED IN AN ACADEMIC SAFETY-NET HOSPITAL AND FIVE AFFILIATED COMMUNITY HEALTH CENTERS IN BOSTON, MASSACHUSETTS. PARTICIPANTS: NINETY-FIVE ADULTS WITH NONSPECIFIC CLBP, AGES RANGING FROM 20-64 (MEAN 48) YEARS; 72 WOMEN AND 23 MEN. OUTCOME MEASURES: PRIMARY OUTCOMES WERE CHANGES IN BACK-RELATED FUNCTION (MODIFIED ROLAND-MORRIS DISABILITY QUESTIONNAIRE, RMDQ; 0-23) AND MEAN LOW BACK PAIN INTENSITY (0-10) IN THE PREVIOUS WEEK, FROM BASELINE TO WEEK 12. RESULTS: ADJUSTING FOR GROUP ASSIGNMENT, BASELINE RMDQ, AGE, AND GENDER, FOREIGN NATIONALITY AND LOWER BASELINE SF36 PHYSICAL COMPONENT SCORE (PCS) WERE INDEPENDENTLY ASSOCIATED WITH IMPROVEMENT IN RMDQ. GREATER THAN HIGH SCHOOL EDUCATION LEVEL, CLBP LESS THAN 1 YEAR, AND LOWER BASELINE SF36 PCS WERE INDEPENDENTLY ASSOCIATED WITH IMPROVEMENT IN PAIN INTENSITY. OTHER DEMOGRAPHICS INCLUDING RACE, INCOME, GENDER, BMI, AND USE OF PAIN MEDICATIONS WERE NOT ASSOCIATED WITH EITHER OUTCOME. CONCLUSIONS: POOR PHYSICAL HEALTH AT BASELINE IS ASSOCIATED WITH GREATER IMPROVEMENT FROM YOGA IN BACK-RELATED FUNCTION AND PAIN. RACE, INCOME, AND BODY MASS INDEX DO NOT AFFECT THE POTENTIAL FOR A PERSON WITH LOW BACK PAIN TO EXPERIENCE BENEFIT FROM YOGA. 2014 20 1527 38 IYENGAR YOGA FOR DISTRESSED WOMEN: A 3-ARMED RANDOMIZED CONTROLLED TRIAL. DISTRESS IS AN INCREASING PUBLIC HEALTH PROBLEM. WE AIMED TO INVESTIGATE THE EFFECTS OF AN IYENGAR YOGA PROGRAM ON PERCEIVED STRESS AND PSYCHOLOGICAL OUTCOMES IN DISTRESSED WOMEN AND EVALUATED A POTENTIAL DOSE-EFFECT RELATIONSHIP. SEVENTY-TWO FEMALE DISTRESSED SUBJECTS WERE INCLUDED INTO A 3-ARMED RANDOMIZED CONTROLLED TRIAL AND ALLOCATED TO YOGA GROUP 1 (N = 24) WITH TWELVE 90 MIN SESSIONS OVER 3 MONTHS, YOGA GROUP 2 (N = 24) WITH 24 SESSIONS OVER 3 MONTHS, OR A WAITING LIST CONTROL GROUP (N = 24). THE PRIMARY OUTCOME WAS STRESS PERCEPTION, MEASURED BY COHEN STRESS SCALE; SECONDARY OUTCOMES INCLUDED STATE TRAIT ANXIETY, DEPRESSION, PSYCHOLOGICAL AND PHYSICAL QUALITY OF LIFE (QOL), PROFILE OF MOOD STATES, WELL BEING, AND BODILY COMPLAINTS. AFTER THREE MONTHS, WOMEN IN THE YOGA GROUPS SHOWED SIGNIFICANT IMPROVEMENTS IN PERCEIVED STRESS (P = 0.003), STATE TRAIT ANXIETY (P = 0.021 AND P = 0.003), DEPRESSION (P = 0.008), PSYCHOLOGICAL QOL (P = 0.012), MOOD STATES BEING (P = 0.007), AND BODILY COMPLAINTS WELL(P = 0.012) WHEN COMPARED TO CONTROLS. BOTH YOGA PROGRAMS WERE SIMILARLY EFFECTIVE FOR THESE OUTCOMES; HOWEVER, COMPLIANCE WAS BETTER IN THE GROUP WITH FEWER SESSIONS (YOGA GROUP 1). DOSE EFFECTS WERE SEEN ONLY IN THE ANALYSIS OF GROUP-INDEPENDENT EFFECTS FOR BACK PAIN, ANXIETY, AND DEPRESSION. THESE FINDINGS SUGGEST THAT IYENGAR YOGA EFFECTIVELY REDUCES DISTRESS AND IMPROVES RELATED PSYCHOLOGICAL AND PHYSICAL OUTCOMES. FURTHERMORE, ATTENDING TWICE-WEEKLY YOGA CLASSES WAS NOT SUPERIOR TO ONCE-WEEKLY CLASSES, AS A RESULT OF LIMITED COMPLIANCE IN THE TWICE-WEEKLY GROUP. 2012