1 2787 181 YOGA THERAPY DECREASES DYSPNEA-RELATED DISTRESS AND IMPROVES FUNCTIONAL PERFORMANCE IN PEOPLE WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE: A PILOT STUDY. BACKGROUND: THERE HAS BEEN LIMITED STUDY OF YOGA TRAINING AS A COMPLEMENTARY EXERCISE STRATEGY TO MANAGE THE SYMPTOM OF DYSPNEA IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD). PURPOSE: THE PRIMARY PURPOSE OF THIS PILOT STUDY WAS TO EVALUATE A YOGA PROGRAM FOR ITS SAFETY, FEASIBILITY, AND EFFICACY FOR DECREASING DYSPNEA INTENSITY (DI) AND DYSPNEA-RELATED DISTRESS (DD) IN OLDER ADULTS WITH COPD. METHODS: CLINICALLY STABLE PATIENTS WITH COPD (N = 29; AGE 69.9 +/- 9.5; FORCED EXPIRATORY VOLUME IN 1 SECOND (FEV(1)) 47.7 +/- 15.6% PREDICTED; FEMALE = 21) WERE RANDOMIZED TO A 12-WEEK YOGA PROGRAM SPECIFICALLY DESIGNED FOR PEOPLE WITH COPD OR USUAL-CARE CONTROL (UC). THE TWICE-WEEKLY YOGA PROGRAM INCLUDED ASANAS (YOGA POSTURES) AND VISAMA VRITTI PRANAYAMA (TIMED BREATHING). SAFETY MEASURE OUTCOMES INCLUDED HEART RATE, OXYGEN SATURATION, DYSPNEA, AND PAIN. FEASIBILITY WAS MEASURED BY PATIENT-REPORTED ENJOYMENT, DIFFICULTY, AND ADHERENCE TO YOGA SESSIONS. AT BASELINE AND AT 12 WEEKS, DI AND DD WERE MEASURED DURING INCREMENTAL CYCLE ERGOMETRY AND A 6-MINUTE WALK (6MW) TEST. SECONDARY EFFICACY OUTCOMES INCLUDED PHYSICAL PERFORMANCE, PSYCHOLOGIC WELL-BEING, AND HEALTH-RELATED QUALITY OF LIFE (HRQOL). RESULTS: YOGA TRAINING WAS SAFE AND FEASIBLE FOR PATIENTS WITH COPD. WHILE YOGA TRAINING HAD ONLY SMALL EFFECTS ON DI AFTER THE 6MW TEST (EFFECT SIZE [ES], 0.20; P = 0.60), THERE WERE GREATER REDUCTIONS IN DD IN THE YOGA GROUP COMPARED TO UC (ES, 0.67; P = 0.08). YOGA TRAINING ALSO IMPROVED 6MW DISTANCE (+71.7 +/- 21.8 FEET VERSUS -27.6 +/- 36.2 FEET; ES = 0.78, P = 0.04) AND SELF-REPORTED FUNCTIONAL PERFORMANCE (ES = 0.79, P = 0.04) COMPARED TO UC. THERE WERE SMALL POSITIVE CHANGES IN MUSCLE STRENGTH AND HRQOL. CONCLUSIONS: ELDERLY PATIENTS WITH COPD PARTICIPATED SAFELY IN A 12-WEEK YOGA PROGRAM ESPECIALLY DESIGNED FOR PATIENTS WITH THIS CHRONIC ILLNESS. AFTER THE PROGRAM, THE SUBJECTS TOLERATED MORE ACTIVITY WITH LESS DD AND IMPROVED THEIR FUNCTIONAL PERFORMANCE. THESE FINDINGS NEED TO BE CONFIRMED IN A LARGER, MORE SUFFICIENTLY POWERED EFFICACY STUDY.	2009	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
2  557  40 COST-EFFECTIVENESS OF YOGA FOR CHRONIC LOW BACK PAIN IN VETERANS. BACKGROUND: YOGA INTERVENTIONS CAN IMPROVE FUNCTION AND REDUCE PAIN IN PERSONS WITH CHRONIC LOW BACK PAIN (CLBP). OBJECTIVE: USING DATA FROM A RECENT TRIAL OF YOGA FOR MILITARY VETERANS WITH CLBP, WE ANALYZED THE INCREMENTAL COST-EFFECTIVENESS OF YOGA COMPARED WITH USUAL CARE. METHODS: PARTICIPANTS (N=150) WERE RANDOMIZED TO EITHER 2X WEEKLY, 60-MINUTE YOGA SESSIONS FOR 12 WEEKS, OR TO DELAYED TREATMENT (DT). OUTCOMES WERE MEASURED AT 12 WEEKS, AND 6 MONTHS. QUALITY-ADJUSTED LIFE YEARS (QALYS) WERE MEASURED USING THE EQ-5D SCALE. A 30% IMPROVEMENT ON THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE (PRIMARY OUTCOME) SERVED AS AN ADDITIONAL EFFECTIVENESS MEASURE. INTERVENTION COSTS INCLUDING PERSONNEL, MATERIALS, AND TRANSPORTATION WERE TRACKED DURING THE STUDY. HEALTH CARE COSTS WERE OBTAINED FROM PATIENT MEDICAL RECORDS. HEALTH CARE ORGANIZATION AND SOCIETAL PERSPECTIVES WERE EXAMINED WITH A 12-MONTH HORIZON. RESULTS: INCREMENTAL QALYS GAINED BY THE YOGA GROUP OVER 12 MONTHS WERE 0.043. INTERVENTION COSTS TO DELIVER YOGA WERE $307/PARTICIPANT. NEGLIGIBLE DIFFERENCES IN HEALTH CARE COSTS WERE FOUND BETWEEN GROUPS. FROM THE HEALTH CARE ORGANIZATION PERSPECTIVE, THE INCREMENTAL COST-EFFECTIVENESS RATIO TO PROVIDE YOGA WAS $4488/QALY. FROM THE SOCIETAL PERSPECTIVE, YOGA WAS "DOMINANT" PROVIDING BOTH HEALTH BENEFIT AND COST SAVINGS. PROBABILISTIC SENSITIVITY ANALYSIS INDICATES AN 89% CHANCE OF YOGA BEING COST-EFFECTIVE AT A WILLINGNESS-TO-PAY OF $50,000. A SCENARIO COMPARING THE COSTS OF YOGA AND PHYSICAL THERAPY SUGGEST THAT YOGA MAY PRODUCE SIMILAR RESULTS AT A MUCH LOWER COST. DISCUSSION/CONCLUSIONS: YOGA IS A COST-EFFECTIVE TREATMENT FOR REDUCING PAIN AND DISABILITY AMONG MILITARY VETERANS WITH CLBP.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
3  558  28 COST-EFFECTIVENESS OF YOGA FOR MANAGING MUSCULOSKELETAL CONDITIONS IN THE WORKPLACE. BACKGROUND: BACK PAIN AND MUSCULOSKELETAL CONDITIONS NEGATIVELY AFFECT THE HEALTH-RELATED QUALITY OF LIFE (HRQL) OF EMPLOYEES AND GENERATE SUBSTANTIAL COSTS TO EMPLOYERS. AIMS: TO ASSESS THE COST-EFFECTIVENESS OF YOGA FOR MANAGING MUSCULOSKELETAL CONDITIONS. METHODS: A RANDOMIZED CONTROLLED TRIAL EVALUATED AN 8-WEEK YOGA PROGRAMME, WITH A 6-MONTH FOLLOW-UP, FOR NATIONAL HEALTH SERVICE (NHS) EMPLOYEES. EFFECTIVENESS IN MANAGING MUSCULOSKELETAL CONDITIONS WAS ASSESSED USING REPEATED-MEASURES GENERALIZED LINEAR MODELLING FOR THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE (RDQ) AND THE KEELE START BACK SCREENING TOOL. COST-EFFECTIVENESS WAS DETERMINED USING AREA-UNDER-THE-CURVE LINEAR REGRESSION FOR ASSESSING HRQL FROM HEALTHCARE AND SOCIETAL PERSPECTIVES. THE INCREMENTAL COST PER QUALITY-ADJUSTED LIFE YEAR (QALY) WAS ALSO CALCULATED. SICKNESS ABSENCE WAS MEASURED USING ELECTRONIC STAFF RECORDS AT 6 MONTHS. RESULTS: THERE WERE 151 PARTICIPANTS. AT 6 MONTHS, MEAN DIFFERENCES BETWEEN GROUPS FAVOURING YOGA WERE OBSERVED FOR RDQ [-0.63 (95% CI, -1.78, 0.48)], KEELE START [-0.28 (95% CI, -0.97, 0.07)] AND HRQL (0.016 QALY GAIN). FROM A HEALTHCARE PERSPECTIVE, YOGA YIELDED AN INCREMENTAL COST-EFFECTIVENESS RATIO OF POUND2103 PER QALY. GIVEN A WILLINGNESS TO PAY FOR AN ADDITIONAL QALY OF POUND20 000, THE PROBABILITY OF YOGA BEING COST-EFFECTIVE WAS 95%. FROM A SOCIETAL PERSPECTIVE, YOGA WAS THE DOMINANT TREATMENT COMPARED WITH USUAL CARE. AT 6 MONTHS, ELECTRONIC STAFF RECORDS SHOWED THAT YOGA PARTICIPANTS MISSED A TOTAL OF 2 WORKING DAYS DUE TO MUSCULOSKELETAL CONDITIONS COMPARED WITH 43 DAYS FOR USUAL CARE PARTICIPANTS. CONCLUSIONS: YOGA FOR NHS EMPLOYEES MAY ENHANCE HRQL, REDUCE DISABILITY ASSOCIATED WITH BACK PAIN, LOWER SICKNESS ABSENCE DUE TO MUSCULOSKELETAL CONDITIONS AND IS LIKELY TO BE COST-EFFECTIVE.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
4  521  48 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
5  518  40 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
6  193  39 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
7 1059  52 EFFECTS OF YOGA ON EXERCISE CAPACITY IN PATIENTS WITH LYMPHANGIOLEIOMYOMATOSIS: A NONRANDOMIZED CONTROLLED STUDY. OBJECTIVE: TO EVALUATE THE EFFECTS OF YOGA ON EXERCISE CAPACITY AND QUALITY OF LIFE IN PATIENTS WITH LYMPHANGIOLEIOMYOMATOSIS (LAM), A RARE CYSTIC LUNG DISEASE IN WOMEN. PATIENTS AND METHODS: THIS WAS A NONRANDOMIZED, CONTROLLED STUDY CONDUCTED IN BEIJING, CHINA (AUGUST 27, 2017 - APRIL 26, 2018). TWENTY-SIX PARTICIPANTS WERE ALLOCATED TO THE INTERVENTION (YOGA) GROUP (N = 13) OR CONTROL GROUP (N = 13). THE YOGA INTERVENTION INVOLVED A 24-WEEK PROGRAM OF YOGA CLASS TRAINING FOR 90 MIN ONCE A WEEK AND NO FEWER THAN 2 AT-HOME SESSIONS PER WEEK (AT LEAST 15 MIN PER SESSION). THE 6-MIN WALKING DISTANCE (6MWD), LUNG FUNCTION, SERUM VASCULAR ENDOTHELIAL GROWTH FACTOR-D (VEGF-D) LEVELS, QUALITY OF LIFE, AND SYMPTOMS OF ANXIETY AND DEPRESSION WERE MEASURED AT BASELINE, 12-WEEK AND 24-WEEK FOLLOW-UP. AN INCREMENTAL CARDIOPULMONARY EXERCISE TEST WAS CONDUCTED AT BASELINE AND THE 24-WEEK FOLLOW-UP. RESULTS: ELEVEN PATIENTS COMPLETED THE YOGA TRAINING PROGRAM. THE YOGA GROUP EXHIBITED IMPROVEMENTS IN THE FOLLOWING OUTCOMES VERSUS THOSE OF THE CONTROL GROUP: 6MWD (+ 55 +/- 29 M VS + 18 +/- 49 M, P = 0.04), ANAEROBIC THRESHOLD (3.4 +/- 2.4 ML/MIN/KG VS 1.6 +/- 1.4 ML/MIN/KG, P = 0.035) AND PEAK WORK LOAD (11.7 +/- 14.6 W VS 0.2 +/- 9.1 W, P = 0.027). THERE WAS NO SIGNIFICANT DIFFERENCE IN PEAK OXYGEN CONSUMPTION (VO2PEAK), LUNG FUNCTION, VEGF-D LEVEL, AND QUALITY OF LIFE BETWEEN THE YOGA AND CONTROL GROUPS. NO ADVERSE EFFECTS WERE FOUND IN THE YOGA GROUP. CONCLUSION: YOGA IS A FEASIBLE AND SAFE INTERVENTION FOR PULMONARY REHABILITATION AND POTENTIALLY IMPROVES EXERCISE CAPACITY IN PATIENTS WITH LAM. TRIAL REGISTRATION: (CLINICAL TRIAL REGISTRATION NUMBER AT WWW.CHICTR.ORG.CN: CHICTR-OON-1701274).	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
8 2852  52 YOGA, PHYSICAL THERAPY, OR EDUCATION FOR CHRONIC LOW BACK PAIN: A RANDOMIZED NONINFERIORITY TRIAL. BACKGROUND: YOGA IS EFFECTIVE FOR MILD TO MODERATE CHRONIC LOW BACK PAIN (CLBP), BUT ITS COMPARATIVE EFFECTIVENESS WITH PHYSICAL THERAPY (PT) IS UNKNOWN. MOREOVER, LITTLE IS KNOWN ABOUT YOGA'S EFFECTIVENESS IN UNDERSERVED PATIENTS WITH MORE SEVERE FUNCTIONAL DISABILITY AND PAIN. OBJECTIVE: TO DETERMINE WHETHER YOGA IS NONINFERIOR TO PT FOR CLBP. DESIGN: 12-WEEK, SINGLE-BLIND, 3-GROUP RANDOMIZED NONINFERIORITY TRIAL AND SUBSEQUENT 40-WEEK MAINTENANCE PHASE. (CLINICALTRIALS.GOV: NCT01343927). SETTING: ACADEMIC SAFETY-NET HOSPITAL AND 7 AFFILIATED COMMUNITY HEALTH CENTERS. PARTICIPANTS: 320 PREDOMINANTLY LOW-INCOME, RACIALLY DIVERSE ADULTS WITH NONSPECIFIC CLBP. INTERVENTION: PARTICIPANTS RECEIVED 12 WEEKLY YOGA CLASSES, 15 PT VISITS, OR AN EDUCATIONAL BOOK AND NEWSLETTERS. THE MAINTENANCE PHASE COMPARED YOGA DROP-IN CLASSES VERSUS HOME PRACTICE AND PT BOOSTER SESSIONS VERSUS HOME PRACTICE. MEASUREMENTS: PRIMARY OUTCOMES WERE BACK-RELATED FUNCTION, MEASURED BY THE ROLAND MORRIS DISABILITY QUESTIONNAIRE (RMDQ), AND PAIN, MEASURED BY AN 11-POINT SCALE, AT 12 WEEKS. PRESPECIFIED NONINFERIORITY MARGINS WERE 1.5 (RMDQ) AND 1.0 (PAIN). SECONDARY OUTCOMES INCLUDED PAIN MEDICATION USE, GLOBAL IMPROVEMENT, SATISFACTION WITH INTERVENTION, AND HEALTH-RELATED QUALITY OF LIFE. RESULTS: ONE-SIDED 95% LOWER CONFIDENCE LIMITS WERE 0.83 (RMDQ) AND 0.97 (PAIN), DEMONSTRATING NONINFERIORITY OF YOGA TO PT. HOWEVER, YOGA WAS NOT SUPERIOR TO EDUCATION FOR EITHER OUTCOME. YOGA AND PT WERE SIMILAR FOR MOST SECONDARY OUTCOMES. YOGA AND PT PARTICIPANTS WERE 21 AND 22 PERCENTAGE POINTS LESS LIKELY, RESPECTIVELY, THAN EDUCATION PARTICIPANTS TO USE PAIN MEDICATION AT 12 WEEKS. IMPROVEMENTS IN YOGA AND PT GROUPS WERE MAINTAINED AT 1 YEAR WITH NO DIFFERENCES BETWEEN MAINTENANCE STRATEGIES. FREQUENCY OF ADVERSE EVENTS, MOSTLY MILD SELF-LIMITED JOINT AND BACK PAIN, DID NOT DIFFER BETWEEN THE YOGA AND PT GROUPS. LIMITATIONS: PARTICIPANTS WERE NOT BLINDED TO TREATMENT ASSIGNMENT. THE PT GROUP HAD DISPROPORTIONATE LOSS TO FOLLOW-UP. CONCLUSION: A MANUALIZED YOGA PROGRAM FOR NONSPECIFIC CLBP WAS NONINFERIOR TO PT FOR FUNCTION AND PAIN. PRIMARY FUNDING SOURCE: NATIONAL CENTER FOR COMPLEMENTARY AND INTEGRATIVE HEALTH OF THE NATIONAL INSTITUTES OF HEALTH.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
9  132  41 A PRAGMATIC MULTICENTERED RANDOMIZED CONTROLLED TRIAL OF YOGA FOR CHRONIC LOW BACK PAIN: ECONOMIC EVALUATION. STUDY DESIGN: MULTICENTERED RANDOMIZED CONTROLLED TRIAL WITH QUALITY OF LIFE AND RESOURCE USE DATA COLLECTED. OBJECTIVE: THE OBJECTIVE OF THIS STUDY WAS TO EVALUATE THE COST-EFFECTIVENESS OF YOGA INTERVENTION PLUS USUAL CARE COMPARED WITH USUAL CARE ALONE FOR CHRONIC OR RECURRENT LOW BACK PAIN. SUMMARY OF BACKGROUND DATA: YOGA HAS BEEN SHOWN AS AN EFFECTIVE INTERVENTION FOR TREATING CHRONIC OR RECURRENT LOW BACK PAIN. HOWEVER, THERE IS LITTLE EVIDENCE ON ITS COST-EFFECTIVENESS. THE DATA ARE EXTRACTED FROM A PRAGMATIC, MULTICENTERED, RANDOMIZED CONTROLLED TRIAL THAT HAS BEEN CONDUCTED TO EVALUATE THE EFFECTIVENESS AND COST-EFFECTIVENESS OF A 12-WEEK PROGRESSIVE PROGRAM OF YOGA PLUS USUAL CARE IN PATIENTS WITH CHRONIC OR RECURRENT LOW BACK PAIN. METHODS: WITH THIS TRIAL DATA, A COST-EFFECTIVENESS ANALYSIS DURING THE TIME PERIOD OF 12 MONTHS FROM BOTH PERSPECTIVES OF THE UK NATIONAL HEALTH SERVICE AND THE SOCIETAL IS PRESENTED. MAIN OUTCOME MEASURE IS AN INCREMENTAL COST PER QUALITY-ADJUSTED LIFE-YEAR (QALY). RESULTS: FROM THE PERSPECTIVE OF THE U.K. NATIONAL HEALTH SERVICE, YOGA INTERVENTION YIELDS AN INCREMENTAL COST-EFFECTIVENESS RATIO OF POUND13,606 PER QALY. GIVEN A WILLINGNESS TO PAY FOR AN ADDITIONAL QALY OF POUND20,000, THE PROBABILITY OF YOGA INTERVENTION BEING COST-EFFECTIVE IS 72%. FROM THE PERSPECTIVE OF THE SOCIETY, YOGA INTERVENTION IS A DOMINANT TREATMENT COMPARED WITH USUAL CARE ALONE. THIS RESULT IS SURROUNDED BY FEWER UNCERTAINTIES-THE PROBABILITY OF YOGA BEING COST-EFFECTIVE REACHES 95% AT A WILLINGNESS TO PAY FOR AN ADDITIONAL QALY OF POUND20,000. SENSITIVE ANALYSES SUGGEST THE SAME RESULTS THAT YOGA INTERVENTION IS LIKELY TO BE COST-EFFECTIVE IN BOTH PERSPECTIVES. CONCLUSION: ON THE BASIS OF THIS TRIAL, 12 WEEKLY GROUP CLASSES OF SPECIALIZED YOGA ARE LIKELY TO BE A COST-EFFECTIVE INTERVENTION FOR TREATING PATIENTS WITH CHRONIC OR RECURRENT LOW BACK PAIN.	2012	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
10 2560  42 YOGA FOR CHRONIC LOW BACK PAIN: A RANDOMIZED TRIAL. BACKGROUND: PREVIOUS STUDIES INDICATE THAT YOGA MAY BE AN EFFECTIVE TREATMENT FOR CHRONIC OR RECURRENT LOW BACK PAIN. OBJECTIVE: TO COMPARE THE EFFECTIVENESS OF YOGA AND USUAL CARE FOR CHRONIC OR RECURRENT LOW BACK PAIN. DESIGN: PARALLEL-GROUP, RANDOMIZED, CONTROLLED TRIAL USING COMPUTER-GENERATED RANDOMIZATION CONDUCTED FROM APRIL 2007 TO MARCH 2010. OUTCOMES WERE ASSESSED BY POSTAL QUESTIONNAIRE. (INTERNATIONAL STANDARD RANDOMISED CONTROLLED TRIAL NUMBER REGISTER: ISRCTN 81079604) SETTING: 13 NON-NATIONAL HEALTH SERVICE PREMISES IN THE UNITED KINGDOM. PATIENTS: 313 ADULTS WITH CHRONIC OR RECURRENT LOW BACK PAIN. INTERVENTION: YOGA (N = 156) OR USUAL CARE (N = 157). ALL PARTICIPANTS RECEIVED A BACK PAIN EDUCATION BOOKLET. THE INTERVENTION GROUP WAS OFFERED A 12-CLASS, GRADUALLY PROGRESSING YOGA PROGRAM DELIVERED BY 12 TEACHERS OVER 3 MONTHS. MEASUREMENTS: SCORES ON THE ROLAND-MORRIS DISABILITY QUESTIONNAIRE (RMDQ) AT 3 (PRIMARY OUTCOME), 6, AND 12 (SECONDARY OUTCOMES) MONTHS; PAIN, PAIN SELF-EFFICACY, AND GENERAL HEALTH MEASURES AT 3, 6, AND 12 MONTHS (SECONDARY OUTCOMES). RESULTS: 93 (60%) PATIENTS OFFERED YOGA ATTENDED AT LEAST 3 OF THE FIRST 6 SESSIONS AND AT LEAST 3 OTHER SESSIONS. THE YOGA GROUP HAD BETTER BACK FUNCTION AT 3, 6, AND 12 MONTHS THAN THE USUAL CARE GROUP. THE ADJUSTED MEAN RMDQ SCORE WAS 2.17 POINTS (95% CI, 1.03 TO 3.31 POINTS) LOWER IN THE YOGA GROUP AT 3 MONTHS, 1.48 POINTS (CI, 0.33 TO 2.62 POINTS) LOWER AT 6 MONTHS, AND 1.57 POINTS (CI, 0.42 TO 2.71 POINTS) LOWER AT 12 MONTHS. THE YOGA AND USUAL CARE GROUPS HAD SIMILAR BACK PAIN AND GENERAL HEALTH SCORES AT 3, 6, AND 12 MONTHS, AND THE YOGA GROUP HAD HIGHER PAIN SELF-EFFICACY SCORES AT 3 AND 6 MONTHS BUT NOT AT 12 MONTHS. TWO OF THE 157 USUAL CARE PARTICIPANTS AND 12 OF THE 156 YOGA PARTICIPANTS REPORTED ADVERSE EVENTS, MOSTLY INCREASED PAIN. LIMITATION: THERE WERE MISSING DATA FOR THE PRIMARY OUTCOME (YOGA GROUP, N = 21; USUAL CARE GROUP, N = 18) AND DIFFERENTIAL MISSING DATA (MORE IN THE YOGA GROUP) FOR SECONDARY OUTCOMES. CONCLUSION: OFFERING A 12-WEEK YOGA PROGRAM TO ADULTS WITH CHRONIC OR RECURRENT LOW BACK PAIN LED TO GREATER IMPROVEMENTS IN BACK FUNCTION THAN DID USUAL CARE. PRIMARY FUNDING SOURCE: ARTHRITIS RESEARCH UK.	2011	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
11  556  38 COST-EFFECTIVENESS OF EARLY INTERVENTIONS FOR NON-SPECIFIC LOW BACK PAIN: A RANDOMIZED CONTROLLED STUDY INVESTIGATING MEDICAL YOGA, EXERCISE THERAPY AND SELF-CARE ADVICE. OBJECTIVE: TO EVALUATE THE COST-EFFECTIVENESS OF MEDICAL YOGA AS AN EARLY INTERVENTION COMPARED WITH EVIDENCE-BASED EXERCISE THERAPY AND SELF-CARE ADVICE FOR NON-SPECIFIC LOW BACK PAIN. DESIGN: RANDOMIZED CONTROLLED TRIAL WITH A COST-EFFECTIVENESS ANALYSIS. SUBJECTS: A TOTAL OF 159 PARTICIPANTS RANDOMIZED INTO THE MEDICAL YOGA GROUP (N = 52), THE EXERCISE THERAPY GROUP (N = 52) AND THE SELF-CARE ADVICE GROUP (N = 55). METHODS: THE HEALTH OUTCOME MEASURE EQ-5D WAS APPLIED TO MEASURE QUALITY OF LIFE DATA COMBINED WITH COST DATA COLLECTED FROM TREATMENT GROUPS FROM BASELINE TO 12 MONTHS FOLLOW-UP. OUTCOME MEASURE WAS HEALTH-RELATED QUALITY OF LIFE (HRQL). INCREMENTAL COST PER QUALITY ADJUSTED LIFE YEAR (QALY) WAS ALSO CALCULATED. COST-EFFECTIVENESS ANALYSIS WAS CONDUCTED PRIMARILY FROM THE SOCIETAL AND EMPLOYER PERSPECTIVES. RESULTS: MEDICAL YOGA IS COST-EFFECTIVE COMPARED WITH SELF-CARE ADVICE IF AN EMPLOYER CONSIDERS THE SIGNIFICANT IMPROVEMENT IN THE HRQL OF AN EMPLOYEE WITH LOW BACK PAIN JUSTIFIES THE ADDITIONAL COST OF TREATMENT (I.E. IN THIS STUDY EUR 150). FROM A SOCIETAL PERSPECTIVE, MEDICAL YOGA IS A COST-EFFECTIVE TREATMENT COMPARED WITH EXERCISE THERAPY AND SELF-CARE ADVICE IF AN ADDITIONAL QALY IS WORTH EUR 11,500. SENSITIVITY ANALYSIS SUGGESTS THAT MEDICAL YOGA IS MORE COST-EFFECTIVE THAN ITS ALTERNATIVES. CONCLUSION: SIX WEEKS OF UNINTERRUPTED MEDICAL YOGA THERA-PY IS A COST-EFFECTIVE EARLY INTERVENTION FOR NON-SPECIFIC LOW BACK PAIN, WHEN TREATMENT RECOMMENDATIONS ARE ADHERED TO.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
12 1107  48 EFFECTS OF YOGA, STRENGTH TRAINING AND ADVICE ON BACK PAIN: A RANDOMIZED CONTROLLED TRIAL. BACKGROUND: AMONG THE WORKING POPULATION, NON-SPECIFIC LOW-BACK PAIN AND NECK PAIN ARE ONE OF THE MOST COMMON REASONS FOR SICKNESS ABSENTEEISM. THE AIM WAS TO EVALUATE THE EFFECTS OF AN EARLY INTERVENTION OF YOGA - COMPARED WITH STRENGTH TRAINING OR EVIDENCE-BASED ADVICE - ON SICKNESS ABSENTEEISM, SICKNESS PRESENTEEISM, BACK AND NECK PAIN AND DISABILITY AMONG A WORKING POPULATION. METHODS: A RANDOMIZED CONTROLLED TRIAL WAS CONDUCTED ON 159 PARTICIPANTS WITH PREDOMINANTLY (90%) CHRONIC BACK AND NECK PAIN. AFTER SCREENING, THE PARTICIPANTS WERE RANDOMIZED TO KUNDALINI YOGA, STRENGTH TRAINING OR EVIDENCE-BASED ADVICE. PRIMARY OUTCOME WAS SICKNESS ABSENTEEISM. SECONDARY OUTCOMES WERE SICKNESS PRESENTEEISM, BACK AND NECK PAIN AND DISABILITY. SELF-REPORTED QUESTIONNAIRES AND SMS TEXT MESSAGES WERE COMPLETED AT BASELINE, 6 WEEKS, 6 AND 12 MONTHS. RESULTS: THE RESULTS DID NOT INDICATE THAT KUNDALINI YOGA AND STRENGTH TRAINING HAD ANY STATISTICALLY SIGNIFICANT EFFECTS ON THE PRIMARY OUTCOME COMPARED WITH EVIDENCE-BASED ADVICE. AN INTERACTION EFFECT WAS FOUND BETWEEN ADHERENCE TO RECOMMENDATIONS AND SICKNESS ABSENTEEISM, INDICATING LARGER SIGNIFICANT EFFECTS AMONG THE ADHERERS TO KUNDALINI YOGA VERSUS EVIDENCE-BASED ADVICE: RR = 0.47 (CI 0.30; 0.74, P = 0.001), STRENGTH TRAINING VERSUS EVIDENCE-BASED ADVICE: RR = 0.60 (CI 0.38; 0.96, P = 0.032). SOME SIGNIFICANT DIFFERENCES WERE ALSO FOUND FOR THE SECONDARY OUTCOMES TO THE ADVANTAGE OF KUNDALINI YOGA AND STRENGTH TRAINING. CONCLUSIONS: GUIDED EXERCISE IN THE FORMS OF KUNDALINI YOGA OR STRENGTH TRAINING DOES NOT REDUCE SICKNESS ABSENTEEISM MORE THAN EVIDENCE-BASED ADVICE ALONE. HOWEVER, SECONDARY ANALYSES REVEAL THAT AMONG THOSE WHO PURSUE KUNDALINI YOGA OR STRENGTH TRAINING AT LEAST TWO TIMES A WEEK, A SIGNIFICANTLY REDUCTION IN SICKNESS ABSENTEEISM WAS FOUND. METHODS TO INCREASE ADHERENCE TO TREATMENT RECOMMENDATIONS SHOULD BE FURTHER DEVELOPED AND APPLIED IN EXERCISE INTERVENTIONS. TRIAL REGISTRATION: CLINICALTRIALS.GOV NCT01653782, DATE OF REGISTRATION: JUNE, 28, 2012, RETROSPECTIVELY REGISTERED.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
13 2596  53 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 2851  46 YOGA, PHYSICAL THERAPY, AND BACK PAIN EDUCATION FOR SLEEP QUALITY IN LOW-INCOME RACIALLY DIVERSE ADULTS WITH CHRONIC LOW BACK PAIN: A SECONDARY ANALYSIS OF A RANDOMIZED CONTROLLED TRIAL. BACKGROUND: POOR SLEEP IS COMMON AMONG ADULTS WITH CHRONIC LOW BACK PAIN (CLBP), BUT THE INFLUENCE OF CLBP TREATMENTS, SUCH AS YOGA AND PHYSICAL THERAPY (PT), ON SLEEP QUALITY IS UNDER STUDIED. OBJECTIVE: EVALUATE THE EFFECTIVENESS OF YOGA AND PT FOR IMPROVING SLEEP QUALITY IN ADULTS WITH CLBP. DESIGN: SECONDARY ANALYSIS OF A RANDOMIZED CONTROLLED TRIAL. SETTING: ACADEMIC SAFETY-NET HOSPITAL AND 7 AFFILIATED COMMUNITY HEALTH CENTERS. PARTICIPANTS: A TOTAL OF 320 ADULTS WITH CLBP. INTERVENTION: TWELVE WEEKLY YOGA CLASSES, 1-ON-1 PT SESSIONS, OR AN EDUCATIONAL BOOK. MAIN MEASURES: SLEEP QUALITY WAS MEASURED USING THE PITTSBURGH SLEEP QUALITY INDEX (PSQI) GLOBAL SCORE (0-21) AT BASELINE, 12 WEEKS, AND 52 WEEKS. ADDITIONALLY, WE ALSO EVALUATED HOW THE PROPORTION OF PARTICIPANTS WHO ACHIEVED A CLINICALLY MEANINGFUL IMPROVEMENT IN SLEEP QUALITY (> 3-POINT REDUCTION IN PSQI) AT 12 WEEKS VARIED BY CHANGES IN PAIN AND PHYSICAL FUNCTION AT 6 WEEKS. KEY RESULTS: AMONG PARTICIPANTS (MEAN AGE = 46.0, 64% FEMALE, 82% NON-WHITE), NEARLY ALL (92%) REPORTED POOR SLEEP QUALITY (PSQI > 5) AT BASELINE. AT 12 WEEKS, MODEST IMPROVEMENTS IN SLEEP QUALITY WERE OBSERVED AMONG THE YOGA (PSQI MEAN DIFFERENCE [MD] = - 1.19, 95% CONFIDENCE INTERVAL [CI] - 1.82, - 0.55) AND PT (PSQI MD = - 0.91, 95% CI - 1.61, - 0.20) GROUPS. PARTICIPANTS WHO REPORTED A >/= 30% IMPROVEMENT IN PAIN OR PHYSICAL FUNCTION AT 6 WEEKS, COMPARED WITH THOSE WHO IMPROVED < 10%, WERE MORE LIKELY TO BE A SLEEP QUALITY RESPONDER AT 12 WEEKS (ODDS RATIO [OR] = 3.51, 95% CI 1.73, 7.11 AND OR = 2.16, 95% CI 1.18, 3.95, RESPECTIVELY). RESULTS WERE SIMILAR AT 52 WEEKS. CONCLUSION: IN A SAMPLE OF ADULTS WITH CLBP, VIRTUALLY ALL WITH POOR SLEEP QUALITY PRIOR TO INTERVENTION, MODEST BUT STATISTICALLY SIGNIFICANT IMPROVEMENTS IN SLEEP QUALITY WERE OBSERVED WITH BOTH YOGA AND PT. IRRESPECTIVE OF TREATMENT, CLINICALLY IMPORTANT SLEEP IMPROVEMENTS AT THE END OF THE INTERVENTION WERE ASSOCIATED WITH MID-INTERVENTION PAIN AND PHYSICAL FUNCTION IMPROVEMENTS. TRIAL REGISTRATION: CLINICALTRIALS.GOV IDENTIFIER: NCT01343927.	2020	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
15  162  47 A RANDOMISED CONTROLLED TRIAL OF YOGA FOR THE TREATMENT OF CHRONIC LOW BACK PAIN: RESULTS OF A PILOT STUDY. OBJECTIVE: TO CONDUCT A PILOT TRIAL OF YOGA FOR THE TREATMENT OF CHRONIC LOW BACK PAIN (LBP) TO INFORM THE FEASIBILITY AND PRACTICALITY OF CONDUCTING A FULL-SCALE TRIAL IN THE UK; AND TO ASSESS THE EFFICACY OF YOGA FOR THE TREATMENT OF CHRONIC LOW BACK PAIN. DESIGN: A PRAGMATIC RANDOMISED CONTROLLED TRIAL WAS UNDERTAKEN COMPARING YOGA TO USUAL CARE. PARTICIPANTS: TWENTY PARTICIPANTS WHO HAD PRESENTED TO THEIR GP WITH CHRONIC LOW BACK PAIN IN THE PREVIOUS 18 MONTHS WERE RECRUITED VIA GP RECORDS FROM ONE PRACTICE IN YORK, UK. INTERVENTIONS: TWENTY PATIENTS WERE RANDOMISED TO EITHER 12 WEEKLY 75-MIN SESSIONS OF SPECIALISED YOGA PLUS WRITTEN ADVICE, OR USUAL CARE PLUS WRITTEN ADVICE. ALLOCATION WAS 50/50. MAIN OUTCOME MEASURES: RECRUITMENT RATE, LEVELS OF INTERVENTION ATTENDANCE, AND LOSS TO FOLLOW-UP WERE THE MAIN NON-CLINICAL OUTCOMES. CHANGE AS MEASURED BY THE ROLAND AND MORRIS DISABILITY QUESTIONNAIRE WAS THE PRIMARY CLINICAL OUTCOME. CHANGES IN THE ABERDEEN BACK PAIN SCALE, SF-12, EQ-5D, AND PAIN SELF-EFFICACY WERE SECONDARY CLINICAL OUTCOMES. DATA WERE COLLECTED VIA POSTAL QUESTIONNAIRE AT BASELINE, 4 WEEKS, AND 12 WEEKS FOLLOW-UP. RESULTS: OF THE 286 PATIENTS IDENTIFIED FROM THE GP DATABASE, 52 (18%) CONSENTED AND RETURNED THE ELIGIBILITY QUESTIONNAIRE, OUT OF THESE 20 (6.9%) WERE ELIGIBLE AND RANDOMISED. THE TOTAL PERCENTAGE OF PATIENTS RANDOMISED FROM THE GP PRACTICE POPULATION WAS 0.28%. TEN PATIENTS WERE RANDOMISED TO YOGA, RECEIVING AN AVERAGE OF 1.7 SESSIONS (RANGE 0-5), AND 10 WERE RANDOMISED TO USUAL CARE. AT 12 WEEKS FOLLOW-UP DATA WAS RECEIVED FROM 60% OF PATIENTS IN THE YOGA GROUP AND 90% OF PATIENTS IN THE USUAL CARE GROUP (75% OVERALL). NO SIGNIFICANT DIFFERENCES WERE SEEN BETWEEN GROUPS IN CLINICAL OUTCOMES APART FROM ON THE ABERDEEN BACK PAIN SCALE AT FOUR WEEKS FOLLOW-UP WHERE THE YOGA GROUP REPORTED SIGNIFICANTLY LESS PAIN. CONCLUSION: THIS PILOT STUDY PROVIDED USEFUL DATA AND INFORMATION TO INFORM THE DESIGN AND DEVELOPMENT OF A FULL-SCALE TRIAL OF YOGA FOR CLBP IN THE UK. A KEY FINDING IS THE CALCULATION OF GP PRACTICE TOTAL LIST SIZE REQUIRED FOR PATIENT RECRUITMENT IN A FULL-SCALE TRIAL, AND THE NEED TO IMPLEMENT METHODS TO INCREASE CLASS ATTENDANCE.	2010	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
16   74  47 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	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
17 2831  40 YOGA VS. PHYSICAL THERAPY VS. EDUCATION FOR CHRONIC LOW BACK PAIN IN PREDOMINANTLY MINORITY POPULATIONS: STUDY PROTOCOL FOR A RANDOMIZED CONTROLLED TRIAL. BACKGROUND: CHRONIC LOW BACK PAIN CAUSES SUBSTANTIAL MORBIDITY AND COST TO SOCIETY WHILE DISPROPORTIONATELY IMPACTING LOW-INCOME AND MINORITY ADULTS. SEVERAL RANDOMIZED CONTROLLED TRIALS SHOW YOGA IS AN EFFECTIVE TREATMENT. HOWEVER, THE COMPARATIVE EFFECTIVENESS OF YOGA AND PHYSICAL THERAPY, A COMMON MAINSTREAM TREATMENT FOR CHRONIC LOW BACK PAIN, IS UNKNOWN. METHODS/DESIGN: THIS IS A RANDOMIZED CONTROLLED TRIAL FOR 320 PREDOMINANTLY LOW-INCOME MINORITY ADULTS WITH CHRONIC LOW BACK PAIN, COMPARING YOGA, PHYSICAL THERAPY, AND EDUCATION. INCLUSION CRITERIA ARE ADULTS 18-64 YEARS OLD WITH NON-SPECIFIC LOW BACK PAIN LASTING >/= 12 WEEKS AND A SELF-REPORTED AVERAGE PAIN INTENSITY OF >/= 4 ON A 0-10 SCALE. RECRUITMENT TAKES PLACE AT BOSTON MEDICAL CENTER, AN URBAN ACADEMIC SAFETY-NET HOSPITAL AND SEVEN FEDERALLY QUALIFIED COMMUNITY HEALTH CENTERS LOCATED IN DIVERSE NEIGHBORHOODS. THE 52-WEEK STUDY HAS AN INITIAL 12-WEEK TREATMENT PHASE WHERE PARTICIPANTS ARE RANDOMIZED IN A 2:2:1 RATIO INTO I) A STANDARDIZED WEEKLY HATHA YOGA CLASS SUPPLEMENTED BY HOME PRACTICE; II) A STANDARDIZED EVIDENCE-BASED EXERCISE THERAPY PROTOCOL ADAPTED FROM THE TREATMENT BASED CLASSIFICATION METHOD, INDIVIDUALLY DELIVERED BY A PHYSICAL THERAPIST AND SUPPLEMENTED BY HOME PRACTICE; AND III) EDUCATION DELIVERED THROUGH A SELF-CARE BOOK. CO-PRIMARY OUTCOME MEASURES ARE 12-WEEK PAIN INTENSITY MEASURED ON AN 11-POINT NUMERICAL RATING SCALE AND BACK-SPECIFIC FUNCTION MEASURED USING THE MODIFIED ROLAND MORRIS DISABILITY QUESTIONNAIRE. IN THE SUBSEQUENT 40-WEEK MAINTENANCE PHASE, YOGA PARTICIPANTS ARE RE-RANDOMIZED IN A 1:1 RATIO TO EITHER STRUCTURED MAINTENANCE YOGA CLASSES OR HOME PRACTICE ONLY. PHYSICAL THERAPY PARTICIPANTS ARE SIMILARLY RE-RANDOMIZED TO EITHER FIVE BOOSTER SESSIONS OR HOME PRACTICE ONLY. EDUCATION PARTICIPANTS CONTINUE TO FOLLOW RECOMMENDATIONS OF EDUCATIONAL MATERIALS. WE WILL ALSO ASSESS COST EFFECTIVENESS FROM THE PERSPECTIVES OF THE INDIVIDUAL, INSURERS, AND SOCIETY USING CLAIMS DATABASES, ELECTRONIC MEDICAL RECORDS, SELF-REPORT COST DATA, AND STUDY RECORDS. QUALITATIVE DATA FROM INTERVIEWS WILL ADD SUBJECTIVE DETAIL TO COMPLEMENT QUANTITATIVE DATA. TRIAL REGISTRATION: THIS TRIAL IS REGISTERED IN CLINICALTRIALS.GOV, WITH THE ID NUMBER: NCT01343927.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
18 2824  42 YOGA VERSUS EDUCATION FOR VETERANS WITH CHRONIC LOW BACK PAIN: STUDY PROTOCOL FOR A RANDOMIZED CONTROLLED TRIAL. BACKGROUND: CHRONIC LOW BACK PAIN IS THE MOST FREQUENT PAIN CONDITION IN VETERANS AND CAUSES SUBSTANTIAL SUFFERING, DECREASED FUNCTIONAL CAPACITY, AND LOWER QUALITY OF LIFE. SYMPTOMS OF POST-TRAUMATIC STRESS, DEPRESSION, AND MILD TRAUMATIC BRAIN INJURY ARE HIGHLY PREVALENT IN VETERANS WITH BACK PAIN. YOGA FOR LOW BACK PAIN HAS BEEN DEMONSTRATED TO BE EFFECTIVE FOR CIVILIANS IN RANDOMIZED CONTROLLED TRIALS. HOWEVER, IT IS UNKNOWN IF RESULTS FROM PREVIOUSLY PUBLISHED TRIALS GENERALIZE TO MILITARY POPULATIONS. METHODS/DESIGN: THIS STUDY IS A PARALLEL RANDOMIZED CONTROLLED TRIAL COMPARING YOGA TO EDUCATION FOR 120 VETERANS WITH CHRONIC LOW BACK PAIN. PARTICIPANTS ARE VETERANS >/=18 YEARS OLD WITH LOW BACK PAIN PRESENT ON AT LEAST HALF THE DAYS IN THE PAST SIX MONTHS AND A SELF-REPORTED AVERAGE PAIN INTENSITY IN THE PREVIOUS WEEK OF >/=4 ON A 0-10 SCALE. THE 24-WEEK STUDY HAS AN INITIAL 12-WEEK INTERVENTION PERIOD, WHERE PARTICIPANTS ARE RANDOMIZED EQUALLY INTO (1) A STANDARDIZED WEEKLY GROUP YOGA CLASS WITH HOME PRACTICE OR (2) EDUCATION DELIVERED WITH A SELF-CARE BOOK. PRIMARY OUTCOME MEASURES ARE CHANGE AT 12 WEEKS IN LOW BACK PAIN INTENSITY MEASURED BY THE DEFENSE AND VETERANS PAIN RATING SCALE (0-10) AND BACK-RELATED FUNCTION USING THE 23-POINT ROLAND MORRIS DISABILITY QUESTIONNAIRE. IN THE SUBSEQUENT 12-WEEK FOLLOW-UP PERIOD, YOGA PARTICIPANTS ARE ENCOURAGED TO CONTINUE HOME YOGA PRACTICE AND EDUCATION PARTICIPANTS CONTINUE FOLLOWING RECOMMENDATIONS FROM THE BOOK. QUALITATIVE INTERVIEWS WITH VETERANS IN THE YOGA GROUP AND THEIR PARTNERS EXPLORE THE IMPACT OF CHRONIC LOW BACK PAIN AND YOGA ON FAMILY RELATIONSHIPS. WE ALSO ASSESS COST-EFFECTIVENESS FROM THREE PERSPECTIVES: THE VETERAN, THE VETERANS HEALTH ADMINISTRATION, AND SOCIETY USING ELECTRONIC MEDICAL RECORDS, SELF-REPORTED COST DATA, AND STUDY RECORDS. DISCUSSION: THIS STUDY WILL HELP DETERMINE IF YOGA CAN BECOME AN EFFECTIVE TREATMENT FOR VETERANS WITH CHRONIC LOW BACK PAIN AND PSYCHOLOGICAL COMORBIDITIES. TRIAL REGISTRATION: CLINICALTRIALS.GOV: NCT02224183.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
19 2518  49 YOGA COMPARED TO NON-EXERCISE OR PHYSICAL THERAPY EXERCISE ON PAIN, DISABILITY, AND QUALITY OF LIFE FOR PATIENTS WITH CHRONIC LOW BACK PAIN: A SYSTEMATIC REVIEW AND META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS. BACKGROUND: CHRONIC LOW BACK PAIN (CLBP) IS A COMMON AND OFTEN DISABLING MUSCULOSKELETAL CONDITION. YOGA HAS BEEN PROVEN TO BE AN EFFECTIVE THERAPY FOR CHRONIC LOW BACK PAIN. HOWEVER, THERE ARE STILL CONTROVERSIES ABOUT THE EFFECTS OF YOGA AT DIFFERENT FOLLOW-UP PERIODS AND COMPARED WITH OTHER PHYSICAL THERAPY EXERCISES. OBJECTIVE: TO CRITICALLY COMPARE THE EFFECTS OF YOGA FOR PATIENTS WITH CHRONIC LOW BACK PAIN ON PAIN, DISABILITY, QUALITY OF LIFE WITH NON-EXERCISE (E.G. USUAL CARE, EDUCATION), PHYSICAL THERAPY EXERCISE. METHODS: THIS STUDY WAS REGISTERED IN PROSPERO, AND THE REGISTRATION NUMBER WAS CRD42020159865. RANDOMIZED CONTROLLED TRIALS (RCTS) OF ONLINE DATABASES INCLUDED PUBMED, WEB OF SCIENCE, COCHRANE CENTRAL REGISTER OF CONTROLLED TRIALS, EMBASE WHICH EVALUATED EFFECTS OF YOGA FOR PATIENTS WITH CHRONIC LOW BACK PAIN ON PAIN, DISABILITY, AND QUALITY OF LIFE WERE SEARCHED FROM INCEPTION TIME TO NOVEMBER 1, 2019. STUDIES WERE ELIGIBLE IF THEY ASSESSED AT LEAST ONE IMPORTANT OUTCOME, NAMELY PAIN, BACK-SPECIFIC DISABILITY, QUALITY OF LIFE. THE COCHRANE RISK OF BIAS TOOL WAS USED TO ASSESS THE METHODOLOGICAL QUALITY OF INCLUDED RANDOMIZED CONTROLLED TRIALS. THE CONTINUOUS OUTCOMES WERE ANALYZED BY CALCULATING THE MEAN DIFFERENCE (MD) OR STANDARDIZED MEAN DIFFERENCE (SMD) WITH 95% CONFIDENCE INTERVALS (CI) ACCORDING TO WHETHER COMBINING OUTCOMES MEASURED ON DIFFERENT SCALES OR NOT. RESULTS: A TOTAL OF 18 RANDOMIZED CONTROLLED TRIALS WERE INCLUDED IN THIS META-ANALYSIS. YOGA COULD SIGNIFICANTLY REDUCE PAIN AT 4 TO 8 WEEKS (MD = -0.83, 95% CI = -1.19 TO -0.48, P<0.00001, I2 = 0%), 3 MONTHS (MD = -0.43, 95% CI = -0.64 TO -0.23, P<0.0001, I2 = 0%), 6 TO 7 MONTHS (MD = -0.56, 95% CI = -1.02 TO -0.11, P = 0.02, I2 = 50%), AND WAS NOT SIGNIFICANT IN 12 MONTHS (MD = -0.52, 95% CI = -1.64 TO 0.59, P = 0.36, I2 = 87%) COMPARED WITH NON-EXERCISE. YOGA WAS BETTER THAN NON-EXERCISE ON DISABILITY AT 4 TO 8 WEEKS (SMD = -0.30, 95% CI = -0.51 TO -0.10, P = 0.003, I2 = 0%), 3 MONTHS (SMD = -0.31, 95% CI = -0.45 TO -0.18, P<0.00001, I2 = 30%), 6 MONTHS (SMD = -0.38, 95% CI = -0.53 TO -0.23, P<0.00001, I2 = 0%), 12 MONTHS (SMD = -0.33, 95% CI = -0.54 TO -0.12, P = 0.002, I2 = 9%). THERE WAS NO SIGNIFICANT DIFFERENCE ON PAIN, DISABILITY COMPARED WITH PHYSICAL THERAPY EXERCISE GROUP. FURTHERMORE, IT SUGGESTED THAT THERE WAS A NON-SIGNIFICANT DIFFERENCE ON PHYSICAL AND MENTAL QUALITY OF LIFE BETWEEN YOGA AND ANY OTHER INTERVENTIONS. CONCLUSION: THIS META-ANALYSIS PROVIDED EVIDENCE FROM VERY LOW TO MODERATE INVESTIGATING THE EFFECTIVENESS OF YOGA FOR CHRONIC LOW BACK PAIN PATIENTS AT DIFFERENT TIME POINTS. YOGA MIGHT DECREASE PAIN FROM SHORT TERM TO INTERMEDIATE TERM AND IMPROVE FUNCTIONAL DISABILITY STATUS FROM SHORT TERM TO LONG TERM COMPARED WITH NON-EXERCISE (E.G. USUAL CARE, EDUCATION). YOGA HAD THE SAME EFFECT ON PAIN AND DISABILITY AS ANY OTHER EXERCISE OR PHYSICAL THERAPY. YOGA MIGHT NOT IMPROVE THE PHYSICAL AND MENTAL QUALITY OF LIFE BASED ON THE RESULT OF A MERGING.	2020	

20  461  43 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