1 793 136 EFFECT OF YOGA IN THE THERAPY OF IRRITABLE BOWEL SYNDROME: A SYSTEMATIC REVIEW. BACKGROUND & AIMS: THIS REVIEW AIMS TO SYSTEMATICALLY SURVEY THE EFFECTS OF YOGA ON SYMPTOMS OF IRRITABLE BOWEL SYNDROME (IBS), PAIN, QUALITY OF LIFE, MOOD, STRESS, AND SAFETY IN PATIENTS WITH IBS. METHODS: MEDLINE/PUBMED, SCOPUS, THE COCHRANE LIBRARY, CAM-QUEST, CAMBASE, AND INDMED WERE SCREENED THROUGH NOVEMBER 2015. RANDOMIZED CONTROLLED TRIALS COMPARING YOGA WITH USUAL CARE, NONPHARMACOLOGIC, OR PHARMACOLOGIC INTERVENTIONS WERE ANALYZED FOR PATIENTS WITH IBS. PRIMARY OUTCOMES INCLUDED GASTROINTESTINAL SYMPTOMS, QUALITY OF LIFE, AND PAIN. ANXIETY, MOOD, AND SAFETY WERE DEFINED AS SECONDARY OUTCOMES. RISK OF BIAS WAS ASSESSED ACCORDING TO THE COCHRANE COLLABORATION RECOMMENDATIONS. RESULTS: SIX RANDOMIZED CONTROLLED TRIALS WITH A TOTAL OF 273 PATIENTS WERE INCLUDED IN THE QUALITATIVE ANALYSIS. THERE WAS EVIDENCE FOR A BENEFICIAL EFFECT OF A YOGIC INTERVENTION OVER CONVENTIONAL TREATMENT IN IBS, WITH SIGNIFICANTLY DECREASED BOWEL SYMPTOMS, IBS SEVERITY, AND ANXIETY. FURTHERMORE, THERE WERE SIGNIFICANT IMPROVEMENTS IN QUALITY OF LIFE, GLOBAL IMPROVEMENT, AND PHYSICAL FUNCTIONING AFTER YOGA COMPARED WITH NO TREATMENT. TWO RANDOMIZED CONTROLLED TRIALS REPORTED SAFETY DATA STATING THAT NO ADVERSE EVENTS OCCURRED. OVERALL, RISK OF BIAS OF THE INCLUDED STUDIES WAS UNCLEAR. CONCLUSIONS: THE FINDINGS OF THIS SYSTEMATIC REVIEW SUGGEST THAT YOGA MIGHT BE A FEASIBLE AND SAFE ADJUNCTIVE TREATMENT FOR PEOPLE WITH IBS. NEVERTHELESS, NO RECOMMENDATION CAN BE MADE REGARDING YOGA AS A ROUTINE INTERVENTION FOR PATIENTS WITH IBS BECAUSE OF MAJOR FLAWS IN STUDY METHODS. MORE RESEARCH IS NEEDED WITH RESPECT TO A HIGH-QUALITY STUDY DESIGN AND CONSENSUS IN CLINICAL OUTCOME MEASUREMENTS IN IBS. CLINICALTRIALS.GOV NUMBER, NCT02721836. 2016 2 232 57 A SYSTEMATIC REVIEW OF YOGA FOR MAJOR DEPRESSIVE DISORDER. BACKGROUND: THE PURPOSE OF THIS REVIEW WAS TO INVESTIGATE THE EFFICACY AND SAFETY OF YOGA INTERVENTIONS IN TREATING PATIENTS WITH MAJOR DEPRESSIVE DISORDER. METHODS: MEDLINE, SCOPUS, AND THE COCHRANE LIBRARY WERE SCREENED THROUGH DECEMBER 2016. RANDOMIZED CONTROLLED TRIALS (RCTS) COMPARING YOGA TO INACTIVE OR ACTIVE COMPARATORS IN PATIENTS WITH MAJOR DEPRESSIVE DISORDER WERE ELIGIBLE. PRIMARY OUTCOMES INCLUDED REMISSION RATES AND SEVERITY OF DEPRESSION. ANXIETY AND ADVERSE EVENTS WERE SECONDARY OUTCOMES. RISK OF BIAS WAS ASSESSED USING THE COCHRANE TOOL. RESULTS: SEVEN RCTS WITH 240 PARTICIPANTS WERE INCLUDED. RISK OF BIAS WAS UNCLEAR FOR MOST RCTS. COMPARED TO AEROBIC EXERCISE, NO SHORT- OR MEDIUM-TERM GROUP DIFFERENCES IN DEPRESSION SEVERITY WAS FOUND. HIGHER SHORT-TERM DEPRESSION SEVERITY WAS FOUND FOR YOGA COMPARED TO ELECTRO-CONVULSIVE THERAPY; REMISSION RATES DID NOT DIFFER BETWEEN GROUPS. NO SHORT-TERM GROUP DIFFERENCES OCCURRED WHEN YOGA WAS COMPARED TO ANTIDEPRESSANT MEDICATION. CONFLICTING EVIDENCE WAS FOUND WHEN YOGA WAS COMPARED TO ATTENTION-CONTROL INTERVENTIONS, OR WHEN YOGA AS AN ADD-ON TO ANTIDEPRESSANT MEDICATION WAS COMPARED TO MEDICATION ALONE. ONLY TWO RCTS ASSESSED ADVERSE EVENTS AND REPORTED THAT NO TREATMENT-RELATED ADVERSE EVENTS WERE REPORTED. LIMITATIONS: FEW RCTS WITH LOW SAMPLE SIZE. CONCLUSIONS: THIS REVIEW FOUND SOME EVIDENCE FOR POSITIVE EFFECTS BEYOND PLACEBO AND COMPARABLE EFFECTS COMPARED TO EVIDENCE-BASED INTERVENTIONS. HOWEVER, METHODOLOGICAL PROBLEMS AND THE UNCLEAR RISK-BENEFIT RATIO PRECLUDE DEFINITIVE RECOMMENDATIONS FOR OR AGAINST YOGA AS AN ADJUNCT TREATMENT FOR MAJOR DEPRESSIVE DISORDER. LARGER AND ADEQUATELY POWERED RCTS USING NON-INFERIORITY DESIGNS ARE NEEDED. 2017 3 2573 51 YOGA FOR ESSENTIAL HYPERTENSION: A SYSTEMATIC REVIEW. BACKGROUND: YOGA IS THOUGHT TO BE EFFECTIVE FOR HEALTH CONDITIONS. THE ARTICLE AIMS TO ASSESS THE CURRENT CLINICAL EVIDENCE OF YOGA FOR ESSENTIAL HYPERTENSION (EH). STRATEGY: MEDLINE, EMBASE, AND THE COCHRANE CENTRAL REGISTER OF CONTROLLED TRIALS (CENTRAL) IN THE COCHRANE LIBRARY WERE SEARCHED UNTIL JUNE, 2013. WE INCLUDED RANDOMIZED CLINICAL TRIALS TESTING YOGA AGAINST CONVENTIONAL THERAPY, YOGA VERSUS NO TREATMENT, YOGA COMBINED WITH CONVENTIONAL THERAPY VERSUS CONVENTIONAL THERAPY OR CONVENTIONAL THERAPY COMBINED WITH BREATH AWARENESS. STUDY SELECTION, DATA EXTRACTION, QUALITY ASSESSMENT, AND DATA ANALYSES WERE CONDUCTED ACCORDING TO THE COCHRANE STANDARDS. RESULTS: A TOTAL OF 6 STUDIES (INVOLVING 386 PATIENTS) WERE INCLUDED. THE METHODOLOGICAL QUALITY OF THE INCLUDED TRIALS WAS EVALUATED AS GENERALLY LOW. A TOTAL OF 6 RCTS MET ALL THE INCLUSION CRITERIA. 4 OF THEM COMPARED YOGA PLUS CONVENTIONAL THERAPY WITH CONVENTIONAL THERAPY. 1 RCT DESCRIBED YOGA COMBINED WITH CONVENTIONAL THERAPY VERSUS CONVENTIONAL THERAPY COMBINED WITH BREATH AWARENESS. 2 RCT TESTED THE EFFECT OF YOGA VERSUS CONVENTIONAL THERAPY ALONE. 1 RCT DESCRIBED YOGA COMPARED TO NO TREATMENT. ONLY ONE TRIAL REPORTED ADVERSE EVENTS WITHOUT DETAILS, THE SAFETY OF YOGA IS STILL UNCERTAIN. CONCLUSIONS: THERE IS SOME ENCOURAGING EVIDENCE OF YOGA FOR LOWERING SBP AND DBP. HOWEVER, DUE TO LOW METHODOLOGICAL QUALITY OF THESE IDENTIFIED TRIALS, A DEFINITE CONCLUSION ABOUT THE EFFICACY AND SAFETY OF YOGA ON EH CANNOT BE DRAWN FROM THIS REVIEW. THEREFORE, FURTHER THOROUGH INVESTIGATION, LARGE-SCALE, PROPER STUDY DESIGNED, RANDOMIZED TRIALS OF YOGA FOR HYPERTENSION WILL BE REQUIRED TO JUSTIFY THE EFFECTS REPORTED HERE. 2013 4 1740 51 PHYSICAL AND PSYCHOSOCIAL BENEFITS OF YOGA IN CANCER PATIENTS AND SURVIVORS, A SYSTEMATIC REVIEW AND META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS. BACKGROUND: THIS STUDY AIMED TO SYSTEMATICALLY REVIEW THE EVIDENCE FROM RANDOMIZED CONTROLLED TRIALS (RCTS) AND TO CONDUCT A META-ANALYSIS OF THE EFFECTS OF YOGA ON PHYSICAL AND PSYCHOSOCIAL OUTCOMES IN CANCER PATIENTS AND SURVIVORS. METHODS: A SYSTEMATIC LITERATURE SEARCH IN TEN DATABASES WAS CONDUCTED IN NOVEMBER 2011. STUDIES WERE INCLUDED IF THEY HAD AN RCT DESIGN, FOCUSED ON CANCER PATIENTS OR SURVIVORS, INCLUDED PHYSICAL POSTURES IN THE YOGA PROGRAM, COMPARED YOGA WITH A NON-EXERCISE OR WAITLIST CONTROL GROUP, AND EVALUATED PHYSICAL AND/OR PSYCHOSOCIAL OUTCOMES. TWO RESEARCHERS INDEPENDENTLY RATED THE QUALITY OF THE INCLUDED RCTS, AND HIGH QUALITY WAS DEFINED AS >50% OF THE TOTAL POSSIBLE SCORE. EFFECT SIZES (COHEN'S D) WERE CALCULATED FOR OUTCOMES STUDIED IN MORE THAN THREE STUDIES AMONG PATIENTS WITH BREAST CANCER USING MEANS AND STANDARD DEVIATIONS OF POST-TEST SCORES OF THE INTERVENTION AND CONTROL GROUPS. RESULTS: SIXTEEN PUBLICATIONS OF 13 RCTS MET THE INCLUSION CRITERIA, OF WHICH ONE INCLUDED PATIENTS WITH LYMPHOMAS AND THE OTHERS FOCUSED ON PATIENTS WITH BREAST CANCER. THE MEDIAN QUALITY SCORE WAS 67% (RANGE: 22-89%). THE INCLUDED STUDIES EVALUATED 23 PHYSICAL AND 20 PSYCHOSOCIAL OUTCOMES. OF THE OUTCOMES STUDIED IN MORE THAN THREE STUDIES AMONG PATIENTS WITH BREAST CANCER, WE FOUND LARGE REDUCTIONS IN DISTRESS, ANXIETY, AND DEPRESSION (D = -0.69 TO -0.75), MODERATE REDUCTIONS IN FATIGUE (D = -0.51), MODERATE INCREASES IN GENERAL QUALITY OF LIFE, EMOTIONAL FUNCTION AND SOCIAL FUNCTION (D = 0.33 TO 0.49), AND A SMALL INCREASE IN FUNCTIONAL WELL-BEING (D = 0.31). EFFECTS ON PHYSICAL FUNCTION AND SLEEP WERE SMALL AND NOT SIGNIFICANT. CONCLUSION: YOGA APPEARED TO BE A FEASIBLE INTERVENTION AND BENEFICIAL EFFECTS ON SEVERAL PHYSICAL AND PSYCHOSOCIAL SYMPTOMS WERE REPORTED. IN PATIENTS WITH BREAST CANCER, EFFECT SIZE ON FUNCTIONAL WELL-BEING WAS SMALL, AND THEY WERE MODERATE TO LARGE FOR PSYCHOSOCIAL OUTCOMES. 2012 5 1031 45 EFFECTS OF YOGA EXERCISES FOR HEADACHES: A SYSTEMATIC REVIEW OF RANDOMIZED CONTROLLED TRIALS. [PURPOSE] TO ASSESS THE EVIDENCE FOR THE EFFECTIVENESS OF YOGA EXERCISES IN THE MANAGEMENT OF HEADACHES. [SUBJECTS AND METHODS] A SEARCH WAS CONDUCTED OF SIX ELECTRONIC DATABASES TO IDENTIFY RANDOMIZED CONTROLLED TRIALS (RCTS) REPORTING THE EFFECTS OF YOGIC INTERVENTION ON HEADACHES PUBLISHED IN ANY LANGUAGE BEFORE JANUARY 2015. QUALITY ASSESSMENT WAS CONDUCTED USING THE COCHRANE RISK OF BIAS TOOL. [RESULTS] ONE POTENTIAL TRIAL WAS IDENTIFIED AND INCLUDED IN THIS REVIEW. THE QUALITY CRITICAL APPRAISAL INDICATED A MODERATE RISK OF BIAS. THE AVAILABLE DATA COULD ONLY BE INCLUDED AS A NARRATIVE DESCRIPTION. HEADACHE INTENSITY AND FREQUENCY, ANXIETY AND DEPRESSION SCORES, AND SYMPTOMATIC MEDICATION USE WERE SIGNIFICANTLY LOWER IN THE YOGA GROUP COMPARED TO THE CONTROL GROUP. [CONCLUSION] THERE IS EVIDENCE FROM ONE RCT THAT YOGA EXERCISES MAY BE BENEFICIAL FOR HEADACHES. HOWEVER, THE FINDINGS SHOULD BE INTERPRETED WITH CAUTION DUE TO THE SMALL NUMBER OF RCTS. THEREFORE, FURTHER RIGOROUS METHODOLOGICAL AND HIGH QUALITY RCTS ARE REQUIRED TO INVESTIGATE THE HYPOTHESIS THAT YOGA EXERCISES ALLEVIATE HEADACHES, AND TO CONFIRM AND FURTHER COMPREHEND THE EFFECTS OF STANDARDIZED YOGA PROGRAMS ON HEADACHES. 2015 6 1079 36 EFFECTS OF YOGA ON PSYCHOLOGICAL HEALTH, QUALITY OF LIFE, AND PHYSICAL HEALTH OF PATIENTS WITH CANCER: A META-ANALYSIS. YOGA IS ONE OF THE MOST WIDELY USED COMPLEMENTARY AND ALTERNATIVE MEDICINE THERAPIES TO MANAGE ILLNESS. THIS META-ANALYSIS AIMED TO DETERMINE THE EFFECTS OF YOGA ON PSYCHOLOGICAL HEALTH, QUALITY OF LIFE, AND PHYSICAL HEALTH OF PATIENTS WITH CANCER. STUDIES WERE IDENTIFIED THROUGH A SYSTEMATIC SEARCH OF SEVEN ELECTRONIC DATABASES AND WERE SELECTED IF THEY USED A RANDOMIZED CONTROLLED TRIAL DESIGN TO EXAMINE THE EFFECTS OF YOGA IN PATIENTS WITH CANCER. THE QUALITY OF EACH ARTICLE WAS RATED BY TWO OF THE AUTHORS USING THE PEDRO SCALE. TEN ARTICLES WERE SELECTED; THEIR PEDRO SCORES RANGED FROM 4 TO 7. THE YOGA GROUPS COMPARED TO WAITLIST CONTROL GROUPS OR SUPPORTIVE THERAPY GROUPS SHOWED SIGNIFICANTLY GREATER IMPROVEMENTS IN PSYCHOLOGICAL HEALTH: ANXIETY (P = .009), DEPRESSION (P = .002), DISTRESS (P = .003), AND STRESS (P = .006). HOWEVER, DUE TO THE MIXED AND LOW TO FAIR QUALITY AND SMALL NUMBER OF STUDIES CONDUCTED, THE FINDINGS ARE PRELIMINARY AND LIMITED AND SHOULD BE CONFIRMED THROUGH HIGHER-QUALITY, RANDOMIZED CONTROLLED TRIALS. 2011 7 559 50 COULD YOGA PRACTICE IMPROVE TREATMENT-RELATED SIDE EFFECTS AND QUALITY OF LIFE FOR WOMEN WITH BREAST CANCER? A SYSTEMATIC REVIEW AND META-ANALYSIS. AIM: TO DETERMINE IF YOGA AS A COMPLEMENTARY AND ALTERNATIVE THERAPY WAS ASSOCIATED WITH ENHANCED HEALTH AND TREATMENT-RELATED SIDE EFFECTS IN PATIENTS WITH BREAST CANCER. THIS SYSTEMATIC REVIEW EXAMINES WHETHER YOGA PRACTICE PROVIDES ANY MEASURABLE BENEFIT, BOTH PHYSICALLY AND PSYCHOLOGICALLY, FOR WOMEN WITH BREAST CANCER. METHODS: PUBMED, EMBASE AND THE COCHRANE LIBRARY FOR RANDOMIZED CONTROLLED TRIALS (RCTS) THROUGHOUT JUNE 2013. WE EVALUATED THE QUALITY OF THE INCLUDED STUDIES BY THE COCHRANE HANDBOOK 5.2 STANDARDS AND ANALYZED THE DATA USING THE STATA SOFTWARE, VERSION 10.0. META-REGRESSION AND SUBGROUP ANALYSIS WERE ALSO PERFORMED TO IDENTIFY ADDITIONAL PREDICTORS OF OUTCOME AND TO ASSESS HETEROGENEITY. RESULTS: SIXTEEN RCTS WITH A TOTAL OF 930 PARTICIPANTS WERE INCLUDED. COMPARING YOGA GROUPS TO CONTROL GROUPS, THERE WAS A STATISTICALLY SIGNIFICANT DIFFERENCE IN OVERALL HEALTH-RELATED QUALITY OF LIFE, DEPRESSION, ANXIETY AND GASTROINTESTINAL SYMPTOMS. META-REGRESSION ANALYSES REVEALED THAT THE DURATION OF YOGA PRACTICE AND TYPE OF CONTROL GROUP PARTLY EXPLAINED THE HETEROGENEITY. SUBGROUP ANALYSES REVEALED THAT YOGA HAD A POSITIVE EFFECT ON ANXIETY ONLY WHEN IT HAD BEEN PRACTICED FOR LONGER THAN 3 MONTHS. ONLY THE WAIT-LIST CONTROL GROUP SHOWED AN EFFECT OF YOGA ON PHYSICAL WELL-BEING. CONCLUSION: THE CURRENT EVIDENCE DEMONSTRATES THAT YOGA PRACTICE COULD BE EFFECTIVE IN ENHANCING HEALTH AND MANAGING SOME TREATMENT-RELATED SIDE EFFECTS FOR PATIENTS RECOVERING FROM BREAST CANCER. IN FUTURE CLINICAL STUDIES, CLINICIANS SHOULD CONSIDER THE PATIENT'S WISHES ALONG WITH THE CURRENT BEST EVIDENCE OF THE EFFECTS OF YOGA PRACTICE IN THEIR CLINICAL DECISION-MAKING. 2017 8 2592 45 YOGA FOR MENOPAUSAL SYMPTOMS: A SYSTEMATIC REVIEW. OBJECTIVE: THE AIM OF THIS STUDY WAS TO ASSESS THE EFFECTIVENESS OF YOGA AS A TREATMENT OPTION FOR MENOPAUSAL SYMPTOMS. METHODS: WE SEARCHED THE LITERATURE USING 14 DATABASES FROM THEIR INCEPTION TO JULY 2008 AND INCLUDED ALL TYPES OF CLINICAL STUDIES REGARDLESS OF THEIR DESIGN. THE METHODOLOGICAL QUALITY OF ALL STUDIES WAS ASSESSED USING A MODIFIED JADAD SCORE. RESULTS: SEVEN STUDIES MET OUR INCLUSION CRITERIA. TWO RANDOMIZED CLINICAL TRIALS COMPARED THE EFFECTS OF YOGA WITH THOSE OF WALKING OR PHYSICAL EXERCISE. THE META-ANALYSIS OF THESE DATA FAILED TO SHOW SPECIFIC EFFECTS OF YOGA ON MENOPAUSAL COMPLAINTS INCLUDING PSYCHOLOGICAL, SOMATIC, AND VASOMOTOR SYMPTOMS. TWO RANDOMIZED CLINICAL TRIALS FOUND NO EFFECTS OF YOGA ON TOTAL MENOPAUSAL SYMPTOMS COMPARED WITH WAIT-LIST CONTROL OR NO TREATMENT. THE REMAINING STUDIES WERE EITHER NON-RANDOMIZED (N = 1) OR UNCONTROLLED CLINICAL TRIALS (N = 3). THEY REPORTED FAVORABLE EFFECTS OF YOGA ON MENOPAUSAL SYMPTOMS. THESE DATA COLLECTIVELY SHOW THAT THE RESULTS OF RIGOROUS STUDIES OF THE EFFECTS OF YOGA FOR MENOPAUSAL SYMPTOMS ARE UNCONVINCING. CONCLUSION: THE EVIDENCE IS INSUFFICIENT TO SUGGEST THAT YOGA IS AN EFFECTIVE INTERVENTION FOR MENOPAUSE. FURTHER RESEARCH IS REQUIRED TO INVESTIGATE WHETHER THERE ARE SPECIFIC BENEFITS OF YOGA FOR TREATING MENOPAUSAL SYMPTOMS. 2009 9 1042 50 EFFECTS OF YOGA INTERVENTIONS ON FATIGUE IN CANCER PATIENTS AND SURVIVORS: A SYSTEMATIC REVIEW OF RANDOMIZED CONTROLLED TRIALS. BACKGROUND: FATIGUE IS ONE OF THE MOST FREQUENTLY REPORTED, DISTRESSING SIDE EFFECTS REPORTED BY CANCER SURVIVORS AND OFTEN HAS SIGNIFICANT LONG-TERM CONSEQUENCES. RESEARCH INDICATES THAT YOGA CAN PRODUCE INVIGORATING EFFECTS ON PHYSICAL AND MENTAL ENERGY, AND THEREBY MAY IMPROVE LEVELS OF FATIGUE. THE OBJECTIVE OF THIS SYSTEMATIC REVIEW WAS TO EXAMINE THE LITERATURE THAT REPORTS THE EFFECTS OF RANDOMIZED, CONTROLLED YOGA INTERVENTIONS ON SELF-REPORTED FATIGUE IN CANCER PATIENTS AND SURVIVORS. THE ONLINE ELECTRONIC DATABASES, PUBMED AND PSYCINFO, WERE USED TO SEARCH FOR PEER-REVIEWED RESEARCH ARTICLES STUDYING THE EFFECTS OF YOGA INTERVENTIONS ON FATIGUE IN CANCER SURVIVORS. COMBINATIONS OF YOGA, CANCER, AND FATIGUE-RELATED SEARCH TERMS WERE ENTERED SIMULTANEOUSLY TO OBTAIN ARTICLES THAT INCLUDED ALL THREE ELEMENTS. STUDIES WERE INCLUDED IF THEY MET THE FOLLOWING INCLUSION CRITERIA: PARTICIPANTS WERE MALE OR FEMALE CANCER PATIENTS OR SURVIVORS PARTICIPATING IN RANDOMIZED, CONTROLLED YOGA INTERVENTIONS. THE MAIN OUTCOME OF INTEREST WAS CHANGE IN FATIGUE FROM PRE- TO POST-INTERVENTION. INTERVENTIONS OF ANY LENGTH WERE INCLUDED IN THE ANALYSIS. RISK OF BIAS USING THE FORMAT OF THE COCHRANE COLLABORATION'S TOOL FOR ASSESSING RISK OF BIAS WAS ALSO EXAMINED ACROSS STUDIES. RESULTS: TEN ARTICLES MET INCLUSION CRITERIA AND INVOLVED A TOTAL OF 583 PARTICIPANTS WHO WERE PREDOMINANTLY FEMALE, BREAST CANCER SURVIVORS. FOUR STUDIES INDICATED THAT THE YOGA INTERVENTION RESULTED IN SIGNIFICANT REDUCTIONS IN SELF-REPORTED FATIGUE FROM PRE- TO POST-INTERVENTION. THREE OF THE STUDIES REPORTED THAT THERE WERE SIGNIFICANT REDUCTIONS OF FATIGUE AMONG PARTICIPANTS WHO ATTENDED A GREATER NUMBER OF YOGA CLASSES. RISK OF BIAS WAS HIGH FOR AREAS OF ADEQUATE SELECTION, PERFORMANCE, DETECTION, AND PATIENT-REPORTED BIAS AND MIXED FOR ATTRITION AND REPORTING BIAS. RISK OF BIAS WAS UNIFORMLY LOW FOR OTHER FORMS OF BIAS, INCLUDING FINANCIAL CONFLICTS OF INTEREST. CONCLUSIONS: RESULTS OF THE STUDIES INCLUDED IN THIS REVIEW SUGGEST THAT YOGA INTERVENTIONS MAY BE BENEFICIAL FOR REDUCING CANCER-RELATED FATIGUE IN WOMEN WITH BREAST CANCER; HOWEVER, CONCLUSIONS SHOULD BE INTERPRETED WITH CAUTION AS A RESULT OF LEVELS OF BIAS AND INCONSISTENT METHODS USED ACROSS STUDIES. MORE WELL-CONSTRUCTED RANDOMIZED CONTROLLED TRIALS ARE NEEDED TO DETERMINE THE IMPACT OF YOGA INTERVENTIONS ON FATIGUE IN CANCER PATIENTS AND SURVIVORS. 2013 10 1519 38 IS YOGA EFFECTIVE FOR PAIN? A SYSTEMATIC REVIEW OF RANDOMIZED CLINICAL TRIALS. OBJECTIVE: THE OBJECTIVE OF THIS SYSTEMATIC REVIEW WAS TO ASSESS THE EFFECTIVENESS OF YOGA AS A TREATMENT OPTION FOR ANY TYPE OF PAIN. METHOD: SEVEN DATABASES WERE SEARCHED FROM THEIR INCEPTION TO FEBRUARY 2011. RANDOMIZED CLINICAL TRIALS WERE CONSIDERED IF THEY INVESTIGATED YOGA IN PATIENTS WITH ANY TYPE OF PAIN AND IF THEY ASSESSED PAIN AS A PRIMARY OUTCOME MEASURE. THE 5-POINT JADAD SCALE WAS USED TO ASSESS METHODOLOGICAL QUALITY OF STUDIES. THE SELECTION OF STUDIES, DATA EXTRACTION AND QUALITY ASSESSMENT WERE PERFORMED INDEPENDENTLY BY TWO REVIEWERS. RESULTS: TEN RANDOMIZED CLINICAL TRIALS (RCTS) MET THE INCLUSION CRITERIA. THEIR METHODOLOGICAL QUALITY RANGED BETWEEN 1 AND 4 ON THE JADAD SCALE. NINE RCTS SUGGESTED THAT YOGA LEADS TO A SIGNIFICANTLY GREATER REDUCTION IN PAIN THAN VARIOUS CONTROL INTERVENTIONS SUCH AS STANDARD CARE, SELF CARE, THERAPEUTIC EXERCISES, RELAXING YOGA, TOUCH AND MANIPULATION, OR NO INTERVENTION. ONE RCT FAILED TO PROVIDE BETWEEN GROUP DIFFERENCES IN PAIN SCORES. CONCLUSIONS: IT IS CONCLUDED THAT YOGA HAS THE POTENTIAL FOR ALLEVIATING PAIN. HOWEVER, DEFINITIVE JUDGMENTS ARE NOT POSSIBLE. 2011 11 1055 40 EFFECTS OF YOGA ON CHRONIC NECK PAIN: A SYSTEMATIC REVIEW OF RANDOMIZED CONTROLLED TRIALS. [PURPOSE] THE AIM OF THIS STUDY WAS TO INVESTIGATE THE EFFECTIVENESS OF YOGA IN THE MANAGEMENT OF CHRONIC NECK PAIN. [SUBJECTS AND METHODS] FIVE ELECTRONIC DATABASES WERE SEARCHED TO IDENTIFY RANDOMIZED CONTROLLED TRIALS (RCTS) OF YOGA INTERVENTION ON CHRONIC NECK PAIN. THE TRIALS WERE PUBLISHED IN THE ENGLISH LANGUAGE BETWEEN JANUARY 1966 AND DECEMBER 2015. THE COCHRANE RISK OF BIAS TOOL WAS USED TO ASSESS THE QUALITY OF THE TRIALS. [RESULTS] THREE TRIALS WERE IDENTIFIED AND INCLUDED IN THIS REVIEW. A CRITICAL APPRAISAL WAS PERFORMED ON THE TRIALS, AND THE RESULT INDICATED A HIGH RISK OF BIAS. A NARRATIVE DESCRIPTION WAS PROCESSED BECAUSE OF THE SMALL NUMBER OF RCTS. NECK PAIN INTENSITY AND FUNCTIONAL DISABILITY WERE SIGNIFICANTLY LOWER IN THE YOGA GROUPS THAN IN THE CONTROL GROUPS. [CONCLUSION] EVIDENCE FROM THE 3 RANDOMLY CONTROLLED TRIALS SHOWS THAT YOGA MAY BE BENEFICIAL FOR CHRONIC NECK PAIN. THE LOW-QUALITY RESULT OF THE CRITICAL APPRAISAL AND THE SMALL NUMBER OF TRIALS SUGGEST THAT HIGH-QUALITY RCTS ARE REQUIRED TO EXAMINE FURTHER THE EFFECTS OF YOGA INTERVENTION ON CHRONIC NECK PAIN RELIEF. 2016 12 2589 40 YOGA FOR LOW BACK PAIN: A SYSTEMATIC REVIEW OF RANDOMIZED CLINICAL TRIALS. IT HAS BEEN SUGGESTED THAT YOGA HAS A POSITIVE EFFECT ON LOW BACK PAIN AND FUNCTION. THE OBJECTIVE OF THIS SYSTEMATIC REVIEW WAS TO ASSESS THE EFFECTIVENESS OF YOGA AS A TREATMENT OPTION FOR LOW BACK PAIN. SEVEN DATABASES WERE SEARCHED FROM THEIR INCEPTION TO MARCH 2011. RANDOMIZED CLINICAL TRIALS WERE CONSIDERED IF THEY INVESTIGATED YOGA IN PATIENTS WITH LOW BACK PAIN AND IF THEY ASSESSED PAIN AS AN OUTCOME MEASURE. THE SELECTION OF STUDIES, DATA EXTRACTION AND VALIDATION WERE PERFORMED INDEPENDENTLY BY TWO REVIEWERS. SEVEN RANDOMIZED CONTROLLED CLINICAL TRIALS (RCTS) MET THE INCLUSION CRITERIA. THEIR METHODOLOGICAL QUALITY RANGED BETWEEN 2 AND 4 ON THE JADAD SCALE. FIVE RCTS SUGGESTED THAT YOGA LEADS TO A SIGNIFICANTLY GREATER REDUCTION IN LOW BACK PAIN THAN USUAL CARE, EDUCATION OR CONVENTIONAL THERAPEUTIC EXERCISES. TWO RCTS SHOWED NO BETWEEN-GROUP DIFFERENCES. IT IS CONCLUDED THAT YOGA HAS THE POTENTIAL TO ALLEVIATE LOW BACK PAIN. HOWEVER, ANY DEFINITIVE CLAIMS SHOULD BE TREATED WITH CAUTION. 2011 13 1043 43 EFFECTS OF YOGA INTERVENTIONS ON FATIGUE: A META-ANALYSIS. BACKGROUND. RESEARCHERS AIMED AT SYSTEMATICALLY REVIEWING AND META-ANALYZING THE EFFECTIVENESS OF YOGA INTERVENTIONS FOR FATIGUE. METHODS. PUBMED/MEDLINE WAS SEARCHED UNTIL JANUARY 2012 FOR CONTROLLED CLINICAL STUDIES. TWO REVIEWERS INDEPENDENTLY EXTRACTED THE DATA. THE METHODOLOGICAL QUALITY OF THE STUDIES WAS ASSESSED. A META-ANALYSIS WAS PERFORMED. RESULTS. NINETEEN CLINICAL STUDIES (TOTAL N = 948) WERE INCLUDED IN THIS REVIEW. INVESTIGATED YOGA STYLES INCLUDED HATHA, IYENGAR, ASANAS, PATANJALI, SAHAJA, AND TIBETAN YOGA. PARTICIPANTS WERE SUFFERING FROM CANCER, MULTIPLE SCLEROSIS, DIALYSIS, CHRONIC PANCREATITIS, FIBROMYALGIA, ASTHMA, OR WERE HEALTHY. YOGA HAD A SMALL POSITIVE EFFECT ON FATIGUE (SMD = 0.27, 59% CI = 0.23-0.31). SEVEN STUDIES RECEIVED 4 POINTS ON THE JADAD SCORE. THERE WERE BASELINE DIFFERENCES IN AT LEAST 5 STUDIES. CONCLUSION. OVERALL, THE EFFECTS OF YOGA INTERVENTIONS ON FATIGUE WERE ONLY SMALL, PARTICULARLY IN CANCER PATIENTS. ALTHOUGH YOGA IS GENERALLY A SAFE THERAPEUTIC INTERVENTION AND EFFECTIVE TO ATTENUATE OTHER HEALTH-RELATED SYMPTOMS, THIS META-ANALYSIS WAS NOT ABLE TO DEFINE THE POWERFUL EFFECT OF YOGA ON PATIENTS SUFFERING FROM FATIGUE. TREATMENT EFFECTS OF YOGA COULD BE IMPROVED IN WELL-DESIGNED FUTURE STUDIES. ACCORDING TO THE GRADE RECOMMENDATIONS ASSESSING THE OVERALL QUALITY OF EVIDENCE, THERE IS A MODERATE EFFECT OF THE CONFIDENCE PLACED IN THE ESTIMATES OF THE EFFECTS DISCUSSED HERE. 2012 14 2612 53 YOGA FOR RHEUMATIC DISEASES: A SYSTEMATIC REVIEW. OBJECTIVE: TO EVALUATE THE QUALITY OF EVIDENCE AND THE STRENGTH OF RECOMMENDATION FOR YOGA AS AN ANCILLARY INTERVENTION IN RHEUMATIC DISEASES. METHODS: MEDLINE/PUBMED, SCOPUS, THE COCHRANE LIBRARY AND INDMED WERE SEARCHED THROUGH FEBRUARY 2013. RANDOMIZED CONTROLLED TRIALS (RCTS) COMPARING YOGA WITH CONTROL INTERVENTIONS IN PATIENTS WITH RHEUMATIC DISEASES WERE INCLUDED. TWO AUTHORS INDEPENDENTLY ASSESSED THE RISK OF BIAS USING THE COCHRANE BACK REVIEW GROUP RISK OF BIAS TOOL. THE QUALITY OF EVIDENCE AND THE STRENGTH OF THE RECOMMENDATION FOR OR AGAINST YOGA WERE GRADED ACCORDING TO THE GRADE RECOMMENDATIONS. RESULTS: EIGHT RCTS WITH A TOTAL OF 559 SUBJECTS WERE INCLUDED; TWO RCTS HAD A LOW RISK OF BIAS. IN TWO RCTS ON FM SYNDROME, THERE WAS VERY LOW EVIDENCE FOR EFFECTS ON PAIN AND LOW EVIDENCE FOR EFFECTS ON DISABILITY. IN THREE RCTS ON OA, THERE WAS VERY LOW EVIDENCE FOR EFFECTS ON PAIN AND DISABILITY. BASED ON TWO RCTS, VERY LOW EVIDENCE WAS FOUND FOR EFFECTS ON PAIN IN RA. NO EVIDENCE FOR EFFECTS ON PAIN WAS FOUND IN ONE RCT ON CTS. NO RCT EXPLICITLY REPORTED SAFETY DATA. CONCLUSION: BASED ON THE RESULTS OF THIS REVIEW, ONLY WEAK RECOMMENDATIONS CAN BE MADE FOR THE ANCILLARY USE OF YOGA IN THE MANAGEMENT OF FM SYNDROME, OA AND RA AT THIS POINT. 2013 15 2742 47 YOGA PRACTICE FOR THE MANAGEMENT OF TYPE II DIABETES MELLITUS IN ADULTS: A SYSTEMATIC REVIEW. THE EFFECT OF PRACTICING YOGA FOR THE MANAGEMENT OF TYPE II DIABETES WAS ASSESSED IN THIS SYSTEMATIC REVIEW THROUGH SEARCHING RELATED ELECTRONIC DATABASES AND THE GREY LITERATURE TO THE END OF MAY 2007 USING OVID. ALL RANDOMIZED CONTROLLED CLINICAL TRIALS (RCTS) COMPARING YOGA PRACTICE WITH OTHER TYPE OF INTERVENTION OR WITH REGULAR PRACTICE OR BOTH, WERE INCLUDED REGARDLESS OF LANGUAGE OR TYPE OF PUBLICATION. EACH STUDY WAS ASSESSED FOR QUALITY BY TWO INDEPENDENT REVIEWERS. MEAN DIFFERENCE WAS USED FOR SUMMARIZING THE EFFECT OF EACH STUDY OUTCOMES WITH 95% CONFIDENCE INTERVALS. POOLING OF THE STUDIES DID NOT TAKE PLACE DUE TO THE WIDE CLINICAL VARIATION BETWEEN THE STUDIES. PUBLICATION BIAS WAS ASSESSED BY STATISTICAL METHODS. FIVE TRIALS WITH 363 PARTICIPANTS MET THE INCLUSION CRITERIA WITH MEDIUM TO HIGH RISK OF BIAS AND DIFFERENT INTERVENTION CHARACTERISTICS. THE STUDIES' RESULTS SHOW IMPROVEMENT IN OUTCOMES AMONG PATIENTS WITH DIABETES TYPE II. THESE IMPROVEMENTS WERE MAINLY AMONG SHORT TERM OR IMMEDIATE DIABETES OUTCOMES AND NOT ALL WERE STATISTICALLY SIGNIFICANT. THE RESULTS WERE INCONCLUSIVE AND NOT SIGNIFICANT FOR THE LONG-TERM OUTCOMES. NO ADVERSE EFFECTS WERE REPORTED IN ANY OF THE INCLUDED STUDIES. SHORT-TERM BENEFITS FOR PATIENTS WITH DIABETES MAY BE ACHIEVED FROM PRACTICING YOGA. FURTHER RESEARCH IS NEEDED IN THIS AREA. FACTORS LIKE QUALITY OF THE TRIALS AND OTHER METHODOLOGICAL ISSUES SHOULD BE IMPROVED BY LARGE RANDOMIZED CONTROL TRIALS WITH ALLOCATION CONCEALMENT TO ASSESS THE EFFECTIVENESS OF YOGA ON DIABETES TYPE II. A DEFINITIVE RECOMMENDATION FOR PHYSICIANS TO ENCOURAGE THEIR PATIENTS TO PRACTICE YOGA CANNOT BE REACHED AT PRESENT. 2010 16 2468 45 YOGA AS A THERAPY FOR IRRITABLE BOWEL SYNDROME. THE AIM OF THIS STATE-OF-THE-ART NARRATIVE REVIEW IS TO EVALUATE THE CURRENT EVIDENCE ABOUT THE EFFECTIVENESS OF YOGA AS THERAPY FOR IBS AND EXPLORE ITS POTENTIAL MECHANISMS OF ACTION. THE CURRENT LITERATURE SUGGESTS YOGA IS EFFECTIVE AND SAFE AND MAY TARGET MULTIPLE MECHANISMS INVOLVED IN TREATMENT OF IBS. EVIDENCE FROM RANDOMIZED CONTROLLED TRIALS IDENTIFIED YOGA AS MORE EFFECTIVE COMPARED TO PHARMACOLOGICAL TREATMENT AND EQUALLY EFFECTIVE AS DIETARY INTERVENTIONS OR MODERATE-INTENSITY WALKING. IMPROVEMENTS WERE SEEN IN BOTH PHYSICAL HEALTH (IBS SYMPTOM SEVERITY, GASTRIC MOTILITY, AUTONOMIC AND SOMATIC SYMPTOM SCORES, AND PHYSICAL FUNCTIONING) AND MENTAL HEALTH OUTCOMES (DEPRESSION, ANXIETY, GASTROINTESTINAL-SPECIFIC ANXIETY, AND QUALITY OF LIFE). GIVEN FAVORABLE CHANGES IN IBS-RELATED PHYSICAL AND MENTAL HEALTH OUTCOMES, PRELIMINARY DATA SUPPORTS YOGA AS BENEFICIAL IN THIS POPULATION. HOWEVER, THE RELATIVELY LOW-QUALITY EVIDENCE RESULTING FROM HETEROGENEITY OF STUDY DESIGNS, INTERVENTIONS, AND OUTCOME MEASURES LIMIT OUR ABILITY TO MAKE SPECIFIC RECOMMENDATIONS ABOUT THE USE OF YOGA AS THERAPY FOR PATIENTS WITH IBS. 2020 17 2354 43 UTILIZING YOGA IN ONCOLOGIC PATIENTS TREATED WITH RADIOTHERAPY: REVIEW. PURPOSE: SEVERAL TRIALS ON NONCANCER POPULATION INDICATE THAT YOGA IS ASSOCIATED WITH MEANINGFUL CLINICAL EFFECTS. THIS STUDY EVALUATED THE PHYSICAL AND PSYCHOSOCIAL OUTCOMES OF YOGA IN ONCOLOGIC PATIENTS TREATED WITH RADIOTHERAPY. METHODS: WE FOCUSED ON A RESEARCH THROUGH COCHRANE REGISTER OF CONTROLLED TRIALS (CENTRAL), BIOMED CENTRAL, AND MEDLINE STUDIES UP TO MAY 2017. RESULTS: YOGA WAS FOUND TO HAVE A SUBSTANTIAL BENEFIT IN CANCER PATIENTS' DISTRESS, ANXIETY, AND DEPRESSION. IT ALSO DEMONSTRATED A MODERATE IMPACT ON FATIGUE AND EMOTIONAL FUNCTION AND A SMALL AND INSIGNIFICANT EFFECT ON FUNCTIONAL WELL-BEING AND SLEEP DISTURBANCES. AS FAR AS THE EFFECTS ON PSYCHOLOGICAL OUTCOMES ARE CONCERNED, THERE WAS INSUFFICIENT EVIDENCE. CONCLUSIONS: THIS SYSTEMATIC REVIEW OF RANDOMIZED CONTROLLED TRIALS SHOWED THAT YOGA HAS STRONG BENEFICIAL EFFECTS ON ONCOLOGIC PATIENTS' QUALITY OF LIFE. RESULTS OF THE CURRENT REVIEW MUST BE INTERPRETED WITH CAUTION DUE TO THE RELATIVE SMALL SAMPLE SIZES OF MOST OF THE INCLUDED STUDIES, WHILE A PROSPECTIVE RANDOMIZED STUDY STANDS IN NEED FOR THE CONFIRMATION OF OUR RESULTS. 2018 18 2677 48 YOGA IN SCHIZOPHRENIA: A SYSTEMATIC REVIEW OF RANDOMISED CONTROLLED TRIALS. OBJECTIVE: THE OBJECTIVE OF THIS SYSTEMATIC REVIEW WAS TO ASSESS THE EFFECTIVENESS OF YOGA AS A COMPLEMENTARY TREATMENT ON GENERAL PSYCHOPATHOLOGY, POSITIVE AND NEGATIVE SYMPTOMS AND HEALTH-RELATED QUALITY OF LIFE (HRQL) FOR PEOPLE WITH SCHIZOPHRENIA. METHOD: RANDOMISED CONTROLLED TRIALS (RCTS) WERE CONSIDERED WHETHER THEY INVESTIGATED A YOGA INTERVENTION IN PATIENTS WITH SCHIZOPHRENIA. THE SELECTION OF STUDIES, DATA EXTRACTION AND QUALITY ASSESSMENT WERE PERFORMED INDEPENDENTLY BY TWO REVIEWERS. RESULTS: ONLY THREE RCTS MET THE INCLUSION CRITERIA. LOWER POSITIVE AND NEGATIVE SYNDROME SCALE (PANSS) TOTAL SCORES AND SUBSCALE SCORES FOR POSITIVE AND NEGATIVE SYMPTOMS WERE OBTAINED AFTER YOGA COMPARED WITH EXERCISE OR WAITING LIST CONTROL CONDITIONS. IN THE SAME WAY, THE PHYSICAL, PSYCHOLOGICAL, SOCIAL AND ENVIRONMENTAL HRQL AS MEASURED WITH THE ABBREVIATED VERSION OF THE WORLD HEALTH ORGANIZATION QUALITY OF LIFE QUESTIONNAIRE (WHOQOL-BREF) INCREASED MORE SIGNIFICANTLY AFTER YOGA THAN AFTER EXERCISE OR WAITING LIST CONTROL CONDITIONS. NONE OF THE RCTS ENCOUNTERED ADVERSE EVENTS. DOSE-RESPONSE RELATIONSHIPS COULD, HOWEVER, NOT BE DETERMINED. CONCLUSION: ALTHOUGH THE NUMBER OF RCTS INCLUDED IN THIS REVIEW WAS LIMITED, RESULTS INDICATED THAT YOGA THERAPY CAN BE AN USEFUL ADD-ON TREATMENT TO REDUCE GENERAL PSYCHOPATHOLOGY AND POSITIVE AND NEGATIVE SYMPTOMS. IN THE SAME WAY, HRQL IMPROVED IN THOSE ANTIPSYCHOTIC-STABILISED PATIENTS WITH SCHIZOPHRENIA FOLLOWING YOGA. 2012 19 2689 47 YOGA IN THE WORKPLACE AND HEALTH OUTCOMES: A SYSTEMATIC REVIEW. BACKGROUND: HEALTH PROMOTION IN THE WORKPLACE IS INTENDED TO ENHANCE EMPLOYEE HEALTH AND WELL-BEING. YOGA PROGRAMMES ARE EASY TO IMPLEMENT AND HAVE BEEN EFFECTIVE IN THE MANAGEMENT OF VARIOUS HEALTH CONDITIONS. AIMS: TO ASSESS THE EVIDENCE REGARDING THE EFFECTIVENESS OF YOGA PROGRAMMES AT WORK. METHODS: A SEARCH OF ELECTRONIC DATABASES OF PUBLISHED STUDIES UP UNTIL THE 1ST OF APRIL 2017. INCLUSION CRITERIA FOR THE SYSTEMATIC REVIEW WERE RANDOMIZED CONTROLLED TRIALS OF ADULT EMPLOYEES AND YOGA IN THE WORKPLACE. QUALITY APPRAISAL WAS CARRIED OUT USING THE COCHRANE COLLABORATION'S TOOL FOR ASSESSING RISK OF BIAS IN RANDOMIZED TRIALS. RESULTS: OF 1343 PAPERS IDENTIFIED, 13 STUDIES MET THE INCLUSION CRITERIA. NINE OUT OF 13 TRIALS WERE CLASSIFIED AS HAVING AN UNCLEAR RISK OF BIAS. THE OVERALL EFFECTS OF YOGA ON MENTAL HEALTH OUTCOMES WERE BENEFICIAL, MAINLY ON STRESS. MOST OF THE CARDIOVASCULAR ENDPOINTS SHOWED NO DIFFERENCES BETWEEN YOGA AND CONTROLS. OTHER OUTCOMES REPORTED POSITIVE EFFECTS OF YOGA OR NO CHANGE. CONCLUSIONS: THE FINDINGS OF THIS STUDY SUGGEST THAT YOGA HAS A POSITIVE EFFECT ON HEALTH IN THE WORKPLACE, PARTICULARLY IN REDUCING STRESS, AND NO NEGATIVE EFFECTS WERE REPORTED IN ANY OF THE RANDOMIZED CONTROLLED TRIALS. FURTHER LARGER STUDIES ARE REQUIRED TO CONFIRM THIS. 2019 20 2569 51 YOGA FOR DEPRESSION: THE RESEARCH EVIDENCE. BACKGROUND: YOGA-BASED INTERVENTIONS MAY PROVE TO BE AN ATTRACTIVE OPTION FOR THE TREATMENT OF DEPRESSION. THE AIM OF THIS STUDY IS TO SYSTEMATICALLY REVIEW THE RESEARCH EVIDENCE ON THE EFFECTIVENESS OF YOGA FOR THIS INDICATION. METHODS: SEARCHES OF THE MAJOR BIOMEDICAL DATABASES INCLUDING MEDLINE, EMBASE, CLNAHL, PSYCINFO AND THE COCHRANE LIBRARY WERE CONDUCTED. SPECIALIST COMPLEMENTARY AND ALTERNATIVE MEDICINE (CAM) AND THE INDMED DATABASES WERE ALSO SEARCHED AND EFFORTS MADE TO IDENTIFY UNPUBLISHED AND ONGOING RESEARCH. SEARCHES WERE CONDUCTED BETWEEN JANUARY AND JUNE 2004. RELEVANT RESEARCH WAS CATEGORISED BY STUDY TYPE AND APPRAISED. CLINICAL COMMENTARIES WERE OBTAINED FOR STUDIES REPORTING CLINICAL OUTCOMES. RESULTS: FIVE RANDOMISED CONTROLLED TRIALS WERE LOCATED, EACH OF WHICH UTILISED DIFFERENT FORMS OF YOGA INTERVENTIONS AND IN WHICH THE SEVERITY OF THE CONDITION RANGED FROM MILD TO SEVERE. ALL TRIALS REPORTED POSITIVE FINDINGS BUT METHODOLOGICAL DETAILS SUCH AS METHOD OF RANDOMISATION, COMPLIANCE AND ATTRITION RATES WERE MISSING. NO ADVERSE EFFECTS WERE REPORTED WITH THE EXCEPTION OF FATIGUE AND BREATHLESSNESS IN PARTICIPANTS IN ONE STUDY. LIMITATIONS: NO LANGUAGE RESTRICTIONS WERE IMPOSED ON THE SEARCHES CONDUCTED BUT NO SEARCHES OF DATABASES IN LANGUAGES OTHER THAN ENGLISH WERE INCLUDED. CONCLUSIONS: OVERALL, THE INITIAL INDICATIONS ARE OF POTENTIALLY BENEFICIAL EFFECTS OF YOGA INTERVENTIONS ON DEPRESSIVE DISORDERS. VARIATION IN INTERVENTIONS, SEVERITY AND REPORTING OF TRIAL METHODOLOGY SUGGESTS THAT THE FINDINGS MUST BE INTERPRETED WITH CAUTION. SEVERAL OF THE INTERVENTIONS MAY NOT BE FEASIBLE IN THOSE WITH REDUCED OR IMPAIRED MOBILITY. NEVERTHELESS, FURTHER INVESTIGATION OF YOGA AS A THERAPEUTIC INTERVENTION IS WARRANTED. 2005