1 1655 75 MUSCULOSKELETAL INJURIES IN YOGA. WHILE YOGA HAS BEEN WIDELY STUDIED FOR ITS BENEFITS TO MANY HEALTH CONDITIONS, LITTLE RESEARCH HAS BEEN PERFORMED ON THE NATURE OF MUSCULOSKELETAL INJURIES OCCURRING DURING YOGA PRACTICE. YOGA IS CONSIDERED TO BE GENERALLY SAFE, HOWEVER, INJURY CAN OCCUR IN NEARLY ANY PART OF THE BODY-ESPECIALLY THE NECK, SHOULDERS, LUMBAR SPINE, HAMSTRINGS, AND KNEES. AS BROAD INTEREST IN YOGA GROWS, SO WILL THE NUMBER OF PATIENTS PRESENTING WITH YOGA-RELATED INJURIES. IN THIS LITERATURE REVIEW, THE PREVALENCE, TYPES OF INJURIES, FORMS OF YOGA RELATED WITH INJURY, SPECIFIC POSES (ASANAS) ASSOCIATED WITH INJURY, AND PREVENTIVE MEASURES ARE DISCUSSED IN ORDER TO FAMILIARIZE PRACTITIONERS WITH YOGA-RELATED INJURIES. 2018 2 304 19 AN EPIDEMIOLOGICAL ANALYSIS OF YOGA-RELATED INJURY PRESENTATIONS TO EMERGENCY DEPARTMENTS IN AUSTRALIA. OBJECTIVES: DESPITE BEING CONSIDERED A LOW-INTENSITY EXERCISE, CONCERNS HAVE BEEN RAISED ABOUT THE RISK OF INJURIES ASSOCIATED WITH YOGA. THIS STUDY AIMED TO ANALYZE THE CHARACTERISTICS AND TREND OF YOGA-RELATED EMERGENCY DEPARTMENT (ED) PRESENTATIONS FROM JULY 2009 TO JUNE 2016 IN VICTORIA, AUSTRALIA. METHODS: THE VICTORIAN EMERGENCY MINIMUM DATASET (VEMD) WAS USED TO COLLECT THE DE-IDENTIFIED DATA. THE DATA WERE FIRST ANALYZED USING DESCRIPTIVE STATISTICS AND SPEARMAN'S CORRELATION. FURTHER INJURY TREND WAS ANALYZED BY CALCULATING THE PERCENTAGE CHANGE OF THE NUMBER OF YOGA-RELATED INJURIES DURING THE 7-YEAR STUDY PERIOD. RESULTS: THERE WERE 118 YOGA-RELATED INJURY CASES THAT SIGNIFICANTLY (P < .05) INCREASED BY 357% FROM JULY 2009 TO JUNE 2016. MOST OF THE CASES WERE FEMALE (N = 96; 81.4%) AND BETWEEN 20 AND 39 YEARS OLD (N = 68, 57.6%). MOST COMMON INJURIES COMPRISED DISLOCATIONS/SPRAINS/STRAINS (N = 60, 51.7%) FOLLOWED BY FRACTURES (N = 17, 14.4%), AND INJURY TO MUSCLE/TENDON (N = 15, 12.7%). CONCLUSION: THE FINDINGS WARRANT FUTURE NATIONWIDE RESEARCH AS WELL AS AN INVESTIGATION INTO THE RISK MANAGEMENT STRATEGIES OF YOGA SERVICE PROVIDERS TO MINIMIZE THE RISK OF INJURY. 2020 3 1157 16 EPIDEMIOLOGY OF YOGA-RELATED INJURIES IN CANADA FROM 1991 TO 2010: A CASE SERIES STUDY. THE AIM IS TO DESCRIBE THE EPIDEMIOLOGY OF YOGA INJURIES PRESENTING TO SELECT CANADIAN EMERGENCY DEPARTMENTS (EDS). THOSE WHO PRESENTED WITH A YOGA INJURY TO A CANADIAN ED PARTICIPATING IN THE CANADIAN HOSPITALS INJURY REPORTING AND PREVENTION PROGRAM AND HAD COMPLETED A DATA COLLECTION FORM BETWEEN 1991 AND 2010 WERE INCLUDED. DEMOGRAPHIC AND INJURY CHARACTERISTICS WERE TABULATED AND INJURY PROFILES OF CHILDREN WERE COMPARED TO ADULTS. SIXTY-SIX INDIVIDUALS (48 FEMALE, 18 MALE) WHO SUSTAINED 67 INJURIES WERE INCLUDED. THE MEDIAN AGE WAS 19 (INTRAQUARTILE RANGE: 13, 32) AND 73% OF INDIVIDUALS WERE INJURED AFTER 2005 (P = 0.0003). SPRAIN WAS THE MOST COMMON INJURY (23/67, 34%) AND THE MOST COMMON BODY REGION INJURED WAS THE LOWER EXTREMITY (27/67, 42%). SIGNIFICANTLY MORE CHILDREN WERE INJURED WHILE BEING INSTRUCTED THAN ADULTS (P = 0.003) BUT MORE ADULTS REQUIRED TREATMENT (P = 0.023). ALTHOUGH YOGA-RELATED INJURIES PRESENTING TO AN ED ARE NOT COMMON, THE NUMBER OF INJURIES ARE INCREASING. 2016 4 2876 26 YOGA-RELATED INJURIES IN THE UNITED STATES FROM 2001 TO 2014. BACKGROUND: YOGA HAS BECOME MORE POPULAR AMONG PEOPLE IN THE UNITED STATES AND HAS BEEN TOUTED BY BOTH YOGA PARTICIPANTS AS WELL AS SOME PHYSICIANS AND RESEARCHERS FOR ITS HEALTH BENEFITS. WHILE THE HEALTH BENEFITS HAVE BEEN STUDIED, THE FREQUENCY OF INJURY AMONG YOGA PARTICIPANTS HAS NOT BEEN WELL DOCUMENTED. PURPOSE: INJURY INCIDENCE, RATES, AND TYPES ASSOCIATED WITH YOGA IN THE UNITED STATES HAVE NOT BEEN QUANTIFIED. THIS STUDY ESTIMATES US YOGA-ASSOCIATED INJURY INCIDENCE AND CHARACTERIZES INJURY TYPE OVER A 13-YEAR PERIOD. STUDY DESIGN: DESCRIPTIVE EPIDEMIOLOGY STUDY. METHODS: DATA FROM THE NATIONAL ELECTRONIC INJURY SURVEILLANCE SYSTEM (NEISS) FROM 2001 TO 2014 WERE USED TO ESTIMATE THE INCIDENCE AND TYPE OF YOGA-ASSOCIATED INJURIES. THE NUMBER AND AGE DISTRIBUTION OF YOGA PARTICIPANTS WAS ESTIMATED USING DATA FROM NATIONAL HEALTH STATISTICS REPORTS. THESE NATIONAL POPULATION ESTIMATES WERE APPLIED TO THE NEISS DATA TO DETERMINE INJURY RATES OVERALL AND STRATIFIED ACCORDING TO AGE CATEGORIES. RESULTS: THERE WERE 29,590 YOGA-RELATED INJURIES SEEN IN HOSPITAL EMERGENCY DEPARTMENTS FROM 2001 TO 2014. THE TRUNK (46.6%) WAS THE MOST FREQUENT REGION INJURED, AND SPRAIN/STRAIN (45.0%) ACCOUNTED FOR THE MAJORITY OF DIAGNOSES. THE INJURY RATE INCREASED OVERALL FROM 2001 TO 2014, AND IT WAS GREATEST FOR THOSE AGED 65 YEARS AND OLDER (57.9/100,000) COMPARED WITH THOSE AGED 18 TO 44 YEARS (11.9/100,000) AND 45 TO 64 YEARS (17.7/100,000) IN 2014. CONCLUSION: PARTICIPANTS AGED 65 YEARS AND OLDER HAVE A GREATER RATE OF INJURY FROM PRACTICING YOGA WHEN COMPARED WITH OTHER AGE GROUPS. MOST INJURIES SUSTAINED WERE TO THE TRUNK AND INVOLVED A SPRAIN/STRAIN. WHILE THERE ARE MANY HEALTH BENEFITS TO PRACTICING YOGA, PARTICIPANTS AND THOSE WISHING TO BECOME PARTICIPANTS SHOULD CONFER WITH A PHYSICIAN PRIOR TO ENGAGING IN PHYSICAL ACTIVITY AND PRACTICE ONLY UNDER THE GUIDANCE OF CERTIFIED INSTRUCTORS. 2016 5 639 14 DO SIDE-EFFECTS/INJURIES FROM YOGA PRACTICE RESULT IN DISCONTINUED USE? RESULTS OF A NATIONAL SURVEY. CONTEXT: YOGA-RELATED INJURIES ARE OF INCREASING CONCERN AS THE USE OF YOGA CONTINUES TO RISE. AIMS: THE AIM OF THE FOLLOWING STUDY IS TO EXAMINE WHETHER A NATIONAL SAMPLE OF YOGA PRACTITIONERS WOULD REPORT DISCONTINUED USE OF YOGA DUE TO INJURY FROM THE PRACTICE, ASSESS WHAT INJURIES RESULTED IN DISCONTINUED USE, DETERMINE WHAT INJURIES WERE MOST COMMON AND IDENTIFY INJURIES REQUIRING MEDICAL ATTENTION. METHODS: SECONDARY DATA ANALYSIS OF A NATIONALLY REPRESENTATIVE SAMPLE OF ADULTS IN THE UNITED STATES (N = 23,393). RESULTS: LESS THAN 1% OF INDIVIDUALS WHO HAD EVER PRACTICED YOGA (N = 2230) REPORTED AN INJURY FROM YOGA THAT LED TO DISCONTINUED USE. OF THOSE REPORTING INJURY, LESS THAN ONE-THIRD (N = 4) REPORTED SEEKING MEDICAL ATTENTION. THE MOST COMMON SIDE-EFFECT WAS BACK PAIN. APPROXIMATELY, HALF OF THOSE REPORTING BACK PAIN SOUGHT MEDICAL ATTENTION. CONCLUSIONS: INJURY DUE TO YOGA IS AN INFREQUENT BARRIER TO CONTINUED PRACTICE AND SEVERE INJURY DUE TO YOGA IS RARE. 2014 6 1466 21 INJURY IN YOGA ASANA PRACTICE: ASSESSMENT OF THE RISKS. BACKGROUND: THE RISK OF INJURY FROM MODERN YOGA ASANA PRACTICE IS POORLY CHARACTERIZED IN THE SCIENTIFIC LITERATURE, BUT ANECDOTAL REPORTS IN THE LAY LITERATURE AND PRESS HAVE POSED QUESTIONS ABOUT THE POSSIBILITY OF FREQUENT, SEVERE INJURIES. DESIGN: WE PERFORMED A CROSS-SECTIONAL SURVEY OF YOGA ASANA PARTICIPANTS ASSESSING THEIR EXPERIENCE WITH YOGA-RELATED INJURY, USING A VOLUNTARY CONVENIENCE SAMPLE. RESULTS: A TOTAL OF 2620 PARTICIPANTS RESPONDED TO OUR SURVEY. SEVENTY-NINE PERCENT WERE BETWEEN AGES 31 AND 60 AND 84% WERE FEMALE. THE MAJORITY OF RESPONDENTS LIVED IN NORTH AMERICA OR EUROPE. FORTY-FIVE PERCENT OF PARTICIPANTS REPORTED EXPERIENCING NO INJURIES DURING THE TIME THEY HAD BEEN PRACTICING YOGA. OF THOSE WHO DID EXPERIENCE AN INJURY FROM ASANA PRACTICE, 28% WERE MILD (E.G., SPRAINS OR NONSPECIFIC PAINS NOT REQUIRING A MEDICAL PROCEDURE, WITH SYMPTOMS LASTING LESS THAN 6 MONTHS) AND 63% WERE MODERATE (E.G., SPRAINS OR NONSPECIFIC PAINS NOT REQUIRING A MEDICAL PROCEDURE, WITH SYMPTOMS LASTING FROM 6 MONTHS TO 1 YEAR). ONLY 9% OF THOSE REPORTING INJURIES (4% OF THE TOTAL SAMPLE) HAD A SEVERE INJURY. THE STRONGEST PREDICTORS FOR INCREASED PROBABILITY OF REPORTING AN INJURY OVER A LIFETIME OF YOGA PRACTICE WERE GREATER NUMBER OF YEARS OF PRACTICE (P<.0001) AND TEACHING YOGA (P=.0177). OTHER ASPECTS OF PARTICIPANT DEMOGRAPHICS OR YOGA PRACTICE HABITS WERE NOT RELATED TO LIKELIHOOD OF REPORTING A YOGA-RELATED INJURY. CONCLUSIONS: WE FOUND THE NUMBER OF INJURIES REPORTED BY YOGA PARTICIPANTS PER YEARS OF PRACTICE EXPOSURE TO BE LOW AND THE OCCURRENCE OF SERIOUS INJURIES IN YOGA TO BE INFREQUENT COMPARED TO OTHER PHYSICAL ACTIVITIES, SUGGESTING THAT YOGA IS NOT A HIGH-RISK PHYSICAL ACTIVITY. MORE WORK IS NEEDED TO CLARIFY THE CAUSAL RELATIONSHIPS BETWEEN THE YOGA PARTICIPANT CHARACTERISTICS, THE ASANA PRACTICE STYLE, AND THE RISK OF SIGNIFICANT INJURY. 2019 7 339 15 ARE SCREENING BY YOGA INSTRUCTORS AND THEIR PRACTICE PATTERNS IMPORTANT TO PREVENT INJURIES IN YOGA CLIENTS? BACKGROUND AND PURPOSE: LITTLE INFORMATION EXISTS REGARDING THE ASSOCIATION OF YOGA-RELATED INJURIES WITH YOGA INSTRUCTOR (YI) PRACTICE PATTERNS. THEREFORE, THIS CROSS-SECTIONAL SURVEY EXAMINED THE SCREENING AND PRACTICE CHARACTERISTICS OF YI AND ITS RELATIONSHIP WITH YOGA-RELATED INJURIES. METHODS AND MATERIALS: YI FROM NORTHEASTERN US COMPLETED A CUSTOMIZED WEB-BASED 57-ITEM QUESTIONNAIRE. RESULTS: THE RESPONSE RATE OF OUR QUESTIONNAIRE WAS 46%. IN THIS STUDY, ONLY 8.8% OF THE YI REPORTED PHYSICAL PERFORMANCE SCREENING AND 33.7% OF THE PARTICIPANTS DID MEDICAL SCREENINGS WITH THEIR CLIENTS. A BINOMIAL LOGISTIC REGRESSION ANALYSIS WITH THE ABOVE VARIABLES REVEALED THAT ADHERENCE TO TRAINING BY YI (P = 0.031) AND THE USE OF SUN SALUTATIONS (P = 0.002) PREDICTED LOWER YOGA-RELATED INJURIES IN CLIENTS REPORTED BY YI. CONCLUSIONS: REDUCTION IN CLIENT YOGA-RELATED INJURIES WAS PREDICTED BY YI ADHERING TO THEIR TRAINING AND PERFORMING SUN SALUTATIONS IN THEIR CLASSES. 2020 8 291 28 ADVERSE EFFECTS OF YOGA: A NATIONAL CROSS-SECTIONAL SURVEY. BACKGROUND: WHILE YOGA IS INCREASINGLY USED FOR HEALTH PURPOSES, ITS SAFETY HAS BEEN QUESTIONED. THE AIM OF THIS CROSS-SECTIONAL SURVEY WAS TO ANALYZE YOGA-ASSOCIATED ADVERSE EFFECTS AND THEIR CORRELATES. METHODS: A CROSS-SECTIONAL ANONYMOUS NATIONAL ONLINE SURVEY AMONG GERMAN YOGA PRACTITIONERS (N = 1702; 88.9% FEMALE; 47.2 +/- 10.8 YEARS) WAS CONDUCTED FROM JANUARY TO JUNE 2016. PARTICIPANTS WERE QUERIED REGARDING THEIR YOGA PRACTICE, I.E. YOGA STYLES USED, LENGTH AND INTENSITY OF YOGA PRACTICE, PRACTICE PATTERNS, AND WHETHER THEY HAD EXPERIENCED ACUTE OR CHRONIC ADVERSE EFFECTS OF THEIR YOGA PRACTICE. INDEPENDENT PREDICTORS OF ACUTE OR CHRONIC ADVERSE EFFECTS WERE IDENTIFIED USING MULTIPLE LOGISTIC REGRESSION ANALYSES. RESULTS: ASHTANGA YOGA (15.7%), TRADITIONAL HATHA YOGA (14.2%), AND SIVANANDA YOGA (22.4%) WERE THE MOST COMMONLY USED YOGA STYLES. 364 (21.4%) YOGA USERS REPORTED 702 ACUTE ADVERSE EFFECTS, OCCURRING AFTER A MEAN OF 7.6 +/- 8.0 YEARS OF YOGA PRACTICE. THE MOST COMMONLY REPORTED YOGA PRACTICES THAT WERE ASSOCIATED WITH ACUTE ADVERSE EFFECTS WERE HAND-, SHOULDER- AND HEAD STANDS (29.4%). USING VINIYOGA WAS ASSOCIATED WITH A DECREASED RISK OF ACUTE ADVERSE EFFECTS; PRACTICING ONLY BY SELF-STUDY WITHOUT SUPERVISION WAS ASSOCIATED WITH HIGHER RISK. ONE HUNDRED SEVENTY-THREE PARTICIPANTS (10.2%) REPORTED 239 CHRONIC ADVERSE EFFECTS. THE RISK OF CHRONIC ADVERSE EFFECTS WAS HIGHER IN PARTICIPANTS WITH CHRONIC ILLNESSES AND THOSE PRACTICING ONLY BY SELF-STUDY WITHOUT SUPERVISION. MOST REPORTED ADVERSE EFFECTS CONCERNED THE MUSCULOSKELETAL SYSTEM. 76.9% OF ACUTE CASES, AND 51.6% OF CHRONIC CASES REACHED FULL RECOVERY. ON AVERAGE 0.60 INJURIES (95% CONFIDENCE INTERVAL = 0.51-0.71) PER 1000 H OF PRACTICE WERE REPORTED, WITH POWER YOGA USERS REPORTING THE HIGHEST RATE (1.50 INJURIES PER 1000 H; 95% CONFIDENCE INTERVAL = 0.98-3.15). CONCLUSIONS: ONE IN FIVE ADULT YOGA USERS REPORTED AT LEAST ONE ACUTE ADVERSE EFFECT IN THEIR YOGA PRACTICE, AND ONE IN TEN REPORTED AT LEAST ONE CHRONIC ADVERSE EFFECT, MAINLY MUSCULOSKELETAL EFFECTS. ADVERSE EFFECTS WERE ASSOCIATED WITH HAND-, SHOULDER- AND HEAD STANDS; AND WITH YOGA SELF-STUDY WITHOUT SUPERVISION. MORE THAN THREE QUARTERS OF OF CASES REACHED FULL RECOVERY. BASED ON THE OVERALL INJURY RATE PER 1000 PRACTICE HOURS, YOGA APPEARS TO BE AS SAFE OR SAFER WHEN COMPARED TO OTHER EXERCISE TYPES. 2019 9 1465 22 INJURIES AND OTHER ADVERSE EVENTS ASSOCIATED WITH YOGA PRACTICE: A SYSTEMATIC REVIEW OF EPIDEMIOLOGICAL STUDIES. OBJECTIVES: TO SYSTEMATICALLY ASSESS THE PREVALENCE OF YOGA-ASSOCIATED INJURIES AND OTHER ADVERSE EVENTS IN EPIDEMIOLOGICAL STUDIES. DESIGN: SYSTEMATIC REVIEW OF OBSERVATIONAL STUDIES. METHODS: MEDLINE/PUBMED, SCOPUS, THE COCHRANE LIBRARY, AND INDMED WERE SEARCHED THROUGH OCTOBER 2016 FOR EPIDEMIOLOGICAL STUDIES ASSESSING THE PREVALENCE OF ADVERSE EVENTS OF YOGA PRACTICE OR COMPARING THE RISK OF ANY ADVERSE EVENTS BETWEEN YOGA PRACTITIONERS AND NON-YOGA PRACTITIONERS. RESULTS: NINE OBSERVATIONAL STUDIES WITH A TOTAL 9129 YOGA PRACTITIONERS AND 9903 NON-YOGA PRACTITIONERS WERE INCLUDED. INCIDENCE PROPORTION OF ADVERSE EVENTS DURING A YOGA CLASS WAS 22.7% (95% CONFIDENCE INTERVAL [CI]=21.1%-24.3%); 12-MONTHS PREVALENCE WAS 4.6% (95%CI=3.8%-5.4%), AND LIFETIME PREVALENCE RANGED FROM 21.3% (95%CI=19.7%-22.9%) TO 61.8% (95%CI=52.8%-70.8%) OF YOGA PRACTITIONERS. SERIOUS ADVERSE EVENTS OCCURRED IN 1.9% (95%CI=1.4%-2.4%). THE MOST COMMON ADVERSE EVENTS RELATED TO THE MUSCULOSKELETAL SYSTEM; THE MOST COMMON INJURIES WERE SPRAINS AND STRAINS. COMPARED TO NON-YOGA PRACTITIONERS, YOGA PRACTITIONERS HAD A COMPARABLE RISK OF FALLS (ODDS RATIO [OR]=0.90; 95%CI=0.76-1.08), AND FALLS-RELATED INJURIES (OR=1.04; 95%CI=0.83-1.29), AND HIGHER RISK OF MENISCUS INJURIES (OR=1.72; 95%CI=1.23-2.41). CONCLUSIONS: A CONSIDERABLE PROPORTION OF YOGA PRACTITIONERS EXPERIENCED INJURIES OR OTHER ADVERSE EVENTS; HOWEVER MOST WERE MILD AND TRANSIENT AND RISKS WERE COMPARABLE TO THOSE OF NON-YOGA PRACTITIONERS. THERE IS NO NEED TO DISCOURAGE YOGA PRACTICE FOR HEALTHY PEOPLE. PEOPLE WITH SERIOUS ACUTE OR CHRONIC ILLNESSES SHOULD SEEK MEDICAL ADVICE BEFORE PRACTICING YOGA. 2018 10 1658 19 MUSCULOSKELETAL PAIN ASSOCIATED WITH RECREATIONAL YOGA PARTICIPATION: A PROSPECTIVE COHORT STUDY WITH 1-YEAR FOLLOW-UP. BACKGROUND: YOGA IS A POPULAR COMPLEMENTARY THERAPY FOR MUSCULOSKELETAL PAIN. THERE ARE FEW STUDIES HOWEVER, THAT HAVE EXAMINED THE RISKS OF RECREATIONAL PARTICIPATION FOR CAUSING MUSCULOSKELETAL PAIN. OBJECTIVES: TO EXAMINE THE RELATIONSHIP BETWEEN MUSCULOSKELETAL PAIN AND RECREATIONAL YOGA PARTICIPATION. METHODS: THIS WAS A PROSPECTIVE COHORT STUDY WITH ONE-YEAR FOLLOW-UP. DATA WERE COLLECTED VIA ELECTRONIC QUESTIONNAIRES, ONE YEAR APART. OUTCOMES INCLUDED INCIDENCE AND IMPACT OF PAIN CAUSED BY YOGA AND PREVALENCE OF PAIN CAUSED, EXACERBATED, UNAFFECTED, AND IMPROVED BY YOGA. PREDICTORS INCLUDED AGE, EXPERIENCE, HOURS OF PARTICIPATION, AND INTENSITY OF PARTICIPATION. RESULTS: THE FINAL SAMPLE INCLUDED 354 PARTICIPANTS FROM TWO SUBURBAN YOGA STUDIOS. THE INCIDENCE RATE OF PAIN CAUSED BY YOGA WAS 10.7%. MORE THAN ONE-THIRD OF INCIDENT CASES RESULTED IN LOST YOGA PARTICIPATION TIME AND/OR SYMPTOMS LASTING MORE THAN 3 MONTHS. NONE OF THE RISK FACTORS AT BASELINE INCREASED THE RISK FOR SUBSEQUENT INCIDENT CASES OF PAIN CAUSED BY YOGA. CONCLUSIONS: YOGA CAN CAUSE MUSCULOSKELETAL PAIN. PARTICIPANTS MAY BENEFIT FROM DISCLOSURE OF PRACTICE TO THEIR HEALTHCARE PROFESSIONALS AND BY INFORMING TEACHERS OF INJURIES THEY MAY HAVE PRIOR TO PARTICIPATION. YOGA TEACHERS SHOULD ALSO DISCUSS THE RISKS FOR INJURY WITH THEIR STUDENTS. 2018 11 2749 24 YOGA PRACTICE IN THE UK: A CROSS-SECTIONAL SURVEY OF MOTIVATION, HEALTH BENEFITS AND BEHAVIOURS. OBJECTIVES: DESPITE THE POPULARITY OF YOGA AND EVIDENCE OF ITS POSITIVE EFFECTS ON PHYSICAL AND MENTAL HEALTH, LITTLE IS KNOWN ABOUT YOGA PRACTICE IN THE UK. THIS STUDY INVESTIGATED THE CHARACTERISTICS OF PEOPLE WHO PRACTISE YOGA, REASONS FOR INITIATING AND MAINTAINING PRACTICE, AND PERCEIVED IMPACT OF YOGA ON HEALTH AND WELL-BEING. DESIGN, SETTING AND PARTICIPANTS: A CROSS-SECTIONAL ONLINE ANONYMOUS SURVEY DISTRIBUTED THROUGH UK-BASED YOGA ORGANISATIONS, STUDIOS AND EVENTS, THROUGH EMAIL INVITES AND FLYERS. 2434 YOGA PRACTITIONERS COMPLETED THE SURVEY, INCLUDING 903 YOGA TEACHERS: 87% WERE WOMEN, 91% WHITE AND 71% DEGREE EDUCATED; MEAN AGE WAS 48.7 YEARS. MAIN OUTCOME MEASURES: PERCEIVED IMPACT OF YOGA ON HEALTH CONDITIONS, HEALTH OUTCOMES AND INJURIES. RELATIONSHIPS BETWEEN YOGA PRACTICE AND MEASURES OF HEALTH, LIFESTYLE, STRESS AND WELL-BEING. RESULTS: IN COMPARISON WITH NATIONAL POPULATION NORMS, PARTICIPANTS REPORTED SIGNIFICANTLY HIGHER WELL-BEING BUT ALSO HIGHER ANXIETY; LOWER PERCEIVED STRESS, BODY MASS INDEX AND INCIDENCE OF OBESITY, AND HIGHER RATES OF POSITIVE HEALTH BEHAVIOURS. 47% REPORTED CHANGING THEIR MOTIVATIONS TO PRACTISE YOGA, WITH GENERAL WELLNESS AND FITNESS KEY TO INITIAL UPTAKE, AND STRESS MANAGEMENT AND SPIRITUALITY IMPORTANT TO CURRENT PRACTICE. 16% OF PARTICIPANTS REPORTED STARTING YOGA TO MANAGE A PHYSICAL OR MENTAL HEALTH CONDITION. RESPONDENTS REPORTED THE VALUE OF YOGA FOR A WIDE RANGE OF HEALTH CONDITIONS, MOST NOTABLY FOR MUSCULOSKELETAL AND MENTAL HEALTH CONDITIONS. 20.7% REPORTED AT LEAST ONE YOGA-RELATED INJURY OVER THEIR LIFETIME. CONTROLLING FOR DEMOGRAPHIC FACTORS, FREQUENCY OF YOGA PRACTICE ACCOUNTED FOR SMALL BUT SIGNIFICANT VARIANCE IN HEALTH-RELATED REGRESSION MODELS (P<0.001). CONCLUSION: THE FINDINGS OF THIS FIRST DETAILED UK SURVEY WERE CONSISTENT WITH SURVEYS IN OTHER WESTERN COUNTRIES. YOGA WAS PERCEIVED TO HAVE A POSITIVE IMPACT ON PHYSICAL AND MENTAL HEALTH CONDITIONS AND WAS LINKED TO POSITIVE HEALTH BEHAVIOURS. FURTHER INVESTIGATION OF YOGA'S ROLE IN SELF-CARE COULD INFORM HEALTH-RELATED CHALLENGES FACED BY MANY COUNTRIES. 2020 12 365 20 ASSOCIATIONS OF YOGA PRACTICE, HEALTH STATUS, AND HEALTH BEHAVIOR AMONG YOGA PRACTITIONERS IN GERMANY-RESULTS OF A NATIONAL CROSS-SECTIONAL SURVEY. BACKGROUND: WHILE YOGA CAN IMPROVE HEALTH-RELATED VARIABLES AND HEALTH BEHAVIOR, DIFFERENT YOGA STYLES AND PRACTICE COMPONENTS APPEAR TO BE ASSOCIATED WITH SPECIFIC HEALTH OUTCOMES. THE AIM OF THIS STUDY WAS TO EXPLORE THE CONNECTION BETWEEN YOGA USE, HEALTH, AND HEALTH BEHAVIORS ACROSS DIFFERENT YOGA STYLES. METHODS: A CROSS-SECTIONAL ANONYMOUS ONLINE SURVEY (N = 1,702; 88.9% FEMALE; 93.3% GERMAN NATIONALITY; MEAN AGE 47.2 +/- 10.8 YEARS; 58.2% YOGA TEACHERS) ASSESSED YOGA PRACTICE CHARACTERISTICS, HEALTH-RELATED VARIABLES AND HEALTH BEHAVIOR. THE SURVEY WAS DISTRIBUTED IN GERMANY ONLY BUT NOT LIMITED TO GERMAN PARTICIPANTS. RESULTS: ASHTANGA YOGA (15.7%), HATHA YOGA (14.2%), AND SIVANANDA YOGA (22.4%) WERE THE MOST COMMONLY PRACTICED YOGA STYLES; PARTICIPANTS PRACTICED FOR A MEAN OF 12.7 +/- 10.0 YEARS. MOST PARTICIPANTS HAD GOOD TO EXCELLENT (96.1%) OVERALL HEALTH; 87.7% REPORTED IMPROVED HEALTH SINCE STARTING YOGA. CONTROLLING FOR SOCIODEMOGRAPHIC AND CLINICAL FACTORS, HEALTH-RELATED VARIABLES WERE MAINLY ASSOCIATED WITH FREQUENCY OF YOGA POSTURES PRACTICE (P < 0.05), HEALTH BEHAVIORS ALSO WITH YOGA PHILOSOPHY STUDY (P < 0.05). THE VARIOUS YOGA STYLES WERE ASSOCIATED WITH SPECIFIC HEALTH-RELATED VARIABLES (P < 0.05). CONCLUSION: YOGA PRACTITIONERS GENERALLY HAVE A GOOD OVERALL HEALTH AND A HEALTHY LIFESTYLE. WHILE HEALTH VARIABLES ARE MAINLY ASSOCIATED WITH PRACTICE OF YOGA POSTURES, HEALTH BEHAVIORS ARE ALSO ASSOCIATED WITH THE STUDY OF YOGA PHILOSOPHY. YOGA INTERVENTIONS TARGETING PREVENTION OR HEALTH PROMOTION SHOULD INCLUDE YOGA PHILOSOPHY TO MODIFY HEALTH BEHAVIORS. THE SPECIFIC YOGA STYLE EMPLOYED MAY ALSO INFLUENCE HEALTH OUTCOMES. 2019 13 95 22 A NATIONAL SURVEY OF YOGA INSTRUCTORS AND THEIR DELIVERY OF YOGA THERAPY. YOGA THERAPY MAY IMPROVE A VARIETY OF SYMPTOMS AND HEALTH CONDITIONS, BUT LITTLE IS KNOWN ABOUT HOW YOGA THERAPY IS BEING DELIVERED IN THE REAL WORLD. THE PURPOSE OF THIS STUDY WAS TO DESCRIBE THE DELIVERY OF YOGA THERAPY BY YOGA INSTRUCTORS ACROSS THE U.S. IN THIS CROSS-SECTIONAL SURVEY, CERTIFIED INSTRUCTORS WERE RECRUITED FROM THE IYENGAR YOGA NATIONAL ASSOCIATION, UNITED STATES (IYNAUS) (N = 966) VIA AN EMAIL THAT CONTAINED A LINK TO AN ANONYMOUS ONLINE SURVEY THAT COLLECTED INFORMATION ON DEMOGRAPHICS, THEIR DELIVERY OF YOGA THERAPY, AND THE HEALTH CONDITIONS AND SYMPTOMS SEEN AND RECORDS KEPT BY THE INSTRUCTORS. A TOTAL OF 487 INSTRUCTORS (50.4%) COMPLETED THE SURVE Y. INSTRUCTORS RANGED FROM 28 TO 82 YEARS IN AGE (M = 56.4 +/- 10.1 YEARS) AND HAD BEEN TEACHING FOR 17.0 +/- 10.0 YEARS. THE MAJORITY (N = 384, 81.4%) REPORTED TEACHING SOME FORM OF THERAPEUTIC YOGA EITHER IN GROUPS (N = 261, 55%) AND/OR PRIVATELY (N = 340, 73.4%). ALL INSTRUCTORS (100%) REPORTED MODIFYING POSES IN THEIR REGULAR YOGA CLASSES FOR STUDENTS BECAUSE OF HEALTH CONDITIONS OR SYMPTOMS. OTHER THAN ATTENDANCE, THE MAJORITY (N = 255, 57.3%) REPORTED KEEPING NO RECORDS ON THEIR SESSIONS. STUDENTS CAME TO INSTRUCTORS FOR HELP WITH OVER 54 HEALTH CONDITIONS, MOST COMMONLY MUSCULOSKELETAL CONDITIONS AND INJURIES (N = 267, 62.8%), FOLLOWED BY PREGNANCY (N = 56, 13.2%) AND HYPERTENSION (N = 22, 5.2%). NEARLY ALL (N = 373, 85.6%) REPORTED PAIN TO BE THE SYMPTOM THAT BROUGHT STUDENTS TO YOGA THERAPY MOST FREQUENTLY. WHEREAS YOGA IN RANDOMIZED CONTROLLED TRIALS TYPICALLY IS DELIVERED TO INDIVIDUALS IN LARGE, HOMOGENOUS GROUPS, THE INSTRUCTORS REPORTED THAT MOST YOGA THERAPY IS BEING PROVIDED INDIVIDUALLY OR IN SMALL, GENERAL THERAPEUTIC CLASSES THAT INCLUDE A VARIETY OF HEALTH CONDITIONS. RESEARCH IS NEEDED TO EXAMINE THE EFFECTIVENESS OF YOGA THERAPY UNDER SUCH CONDITIONS. A CLEAR SET OF GUIDELINES FOR ASSESSING AND DOCUMENTING THE EFFECTIVENESS OF YOGA THERAPY USING STANDARDIZED, VALID, AND RELIABLE METHODS IS NEEDED, PARTICULARLY FOR PAIN-RELATED CONDITIONS. 2016 14 2052 24 THE ASSOCIATION BETWEEN REGULAR YOGA AND MEDITATION PRACTICE AND FALLS AND INJURIES: RESULTS OF A NATIONAL CROSS-SECTIONAL SURVEY AMONG AUSTRALIAN WOMEN. INTRODUCTION: FALLS ARE THE LEADING CAUSE OF INJURIES IN WOMEN ACROSS ALL AGES. WHILE YOGA HAS BEEN SHOWN TO INCREASE BALANCE, IT HAS ALSO BEEN ASSOCIATED WITH INJURIES DUE TO FALLS DURING PRACTICE. THIS STUDY AIMED TO ANALYSE WHETHER REGULAR YOGA OR MEDITATION PRACTICE IS ASSOCIATED WITH THE FREQUENCY OF FALLS AND FALL-RELATED INJURIES IN UPPER MIDDLE-AGED AUSTRALIAN WOMEN. METHODS: WOMEN AGED 59-64 YEARS FROM THE AUSTRALIAN LONGITUDINAL STUDY ON WOMEN'S HEALTH (ALSWH) WERE QUERIED REGARDING FALLS AND FALLS-RELATED INJURIES; AND WHETHER THEY REGULARLY PRACTICED YOGA OR MEDITATION. ASSOCIATIONS OF FALLS AND FALLS-RELATED INJURIES WITH YOGA OR MEDITATION PRACTICE WERE ANALYSED USING CHI-SQUARED TESTS AND MULTIPLE LOGISTIC REGRESSION MODELLING. RESULTS: OF 10,011 WOMEN, 4413 (44.1%) HAD SLIPPED, TRIPPED OR STUMBLED, 2770 (27.7%) HAD FALLEN TO THE GROUND, 1398 (14.0%) HAD BEEN INJURED AS A RESULT OF FALLING, AND 901 (9.0%) WOMEN HAD SOUGHT MEDICAL ATTENTION FOR A FALL-RELATED INJURY WITHIN THE PREVIOUS 12 MONTHS. YOGA OR MEDITATION WAS PRACTICED REGULARLY BY 746 (7.5%) WOMEN. NO ASSOCIATIONS OF FALLS, FALL-RELATED INJURIES AND TREATMENT DUE TO FALLS-RELATED INJURY WITH YOGA OR MEDITATION PRACTICE WERE FOUND. DISCUSSION: NO ASSOCIATION BETWEEN YOGA OR MEDITATION PRACTICE AND FALLS OR FALL-RELATED INJURIES HAVE BEEN FOUND. FURTHER STUDIES ARE WARRANTED FOR CONCLUSIVE JUDGEMENT OF BENEFITS AND SAFETY OF YOGA AND MEDITATION IN RELATION TO BALANCE, FALLS AND FALL-RELATED INJURIES. 2016 15 1778 16 PRACTITIONERS' PERCEPTIONS OF YOGA'S POSITIVE AND NEGATIVE EFFECTS: RESULTS OF A NATIONAL UNITED STATES SURVEY. OBJECTIVES: YOGA IS BECOMING INCREASINGLY POPULAR, YET LITTLE INFORMATION IS AVAILABLE REGARDING PRACTITIONERS' PERCEPTIONS OF EFFECTS OF THEIR PRACTICE. THIS STUDY AIMED TO CHARACTERIZE PERCEPTIONS OF BOTH POSITIVE AND NEGATIVE CHANGES PRACTITIONERS REPORTED IN PHYSICAL AND PSYCHOSOCIAL DOMAINS. DESIGN: CROSS-SECTIONAL INTERNET-BASED SURVEY. PARTICIPANTS: YOGA PRACTITIONERS (N = 542, INCLUDING 162 TEACHERS) RECRUITED VIA EMAIL AND FLYERS SENT TO YOGA STUDIOS ACROSS THE UNITED STATES (US). PARTICIPANTS RANGED IN AGE FROM 18 TO 85 YEARS (M = 44). MEASURES: PARTICIPANTS RATED THE EXTENT TO WHICH THEY EXPERIENCED POSITIVE OR NEGATIVE CHANGE IN PHYSICAL HEALTH AND PSYCHOSOCIAL DIMENSIONS AND THEN LISTED UP TO THREE POSITIVE AND THREE NEGATIVE EFFECTS OF THEIR PRACTICE. RESULTS: BOTH STUDENTS AND TEACHERS REPORTED MODERATELY HIGH LEVELS OF POSITIVE PHYSICAL CHANGES AND PSYCHOSOCIAL CHANGES, ALTHOUGH TEACHERS GENERALLY REPORTED MORE POSITIVE CHANGES. FEW NEGATIVE CHANGES WERE REPORTED. IN OPEN-ENDED RESPONSES, THE MOST COMMONLY REPORTED POSITIVE EFFECTS WERE GENERAL HEALTH AND FITNESS AND RELAXATION. MOST COMMONLY REPORTED NEGATIVE EFFECTS WERE INJURIES, SORENESS, EMOTIONAL TRIGGERS/IRRITABILITY, AND EXPENSE. CONCLUSIONS: FINDINGS SUGGEST THAT YOGA PRACTITIONERS GENERALLY PERCEIVE HIGH LEVELS OF POSITIVE CHANGES, BUT SOME ALSO EXPERIENCE ADVERSE EFFECTS. FUTURE RESEARCH SHOULD ASSESS SUBJECTIVE EXPERIENCES OF CHANGE ALONGSIDE MORE OBJECTIVE MEASURES OF IMPROVEMENT. 2016 16 2661 25 YOGA IN AUSTRALIA: RESULTS OF A NATIONAL SURVEY. INTRODUCTION: THE THERAPEUTIC BENEFITS OF YOGA AND MEDITATION ARE WELL DOCUMENTED, YET LITTLE IS KNOWN ABOUT THE PRACTICE OF YOGA IN AUSTRALIA OR ELSEWHERE, WHETHER AS A PHYSICAL ACTIVITY, A FORM OF THERAPY, A SPIRITUAL PATH OR A LIFESTYLE. MATERIALS AND METHODS: TO INVESTIGATE THE PRACTICE OF YOGA IN AUSTRALIA, A NATIONAL SURVEY OF YOGA PRACTITIONERS WAS CONDUCTED UTILIZING A COMPREHENSIVE WEB-BASED QUESTIONNAIRE. RESPONDENTS WERE SELF-SELECTING TO PARTICIPATE. A TOTAL OF 3,892 RESPONDENTS COMPLETED THE SURVEY. SIXTY OVERSEAS RESPONDENTS AND 1265 YOGA TEACHERS (TO BE REPORTED SEPARATELY) WERE EXCLUDED, LEAVING 2,567 YOGA PRACTITIONER RESPONDENTS. RESULTS: THE TYPICAL YOGA SURVEY RESPONDENT WAS A 41-YEAR-OLD, TERTIARY EDUCATED, EMPLOYED, HEALTH-CONSCIOUS FEMALE (85% WOMEN). ASANA (POSTURES) AND VINYASA (SEQUENCES OF POSTURES) REPRESENTED 61% OF THE TIME SPENT PRACTICING, WITH THE OTHER 39% DEVOTED TO THE GENTLER PRACTICES OF RELAXATION, PRANAYAMA (BREATHING TECHNIQUES), MEDITATION AND INSTRUCTION. RESPONDENTS COMMONLY STARTED PRACTICING YOGA FOR HEALTH AND FITNESS BUT OFTEN CONTINUED PRACTICING FOR STRESS MANAGEMENT. ONE IN FIVE RESPONDENTS PRACTICED YOGA FOR A SPECIFIC HEALTH OR MEDICAL REASON WHICH WAS SEEN TO BE IMPROVED BY YOGA PRACTICE. OF THESE, MORE PEOPLE USED YOGA FOR STRESS MANAGEMENT AND ANXIETY THAN BACK, NECK OR SHOULDER PROBLEMS, SUGGESTING THAT MENTAL HEALTH MAY BE THE PRIMARY HEALTH-RELATED MOTIVATION FOR PRACTICING YOGA. HEALTHY LIFESTYLE CHOICES WERE SEEN TO BE MORE PREVALENT IN RESPONDENTS WITH MORE YEARS OF PRACTICE. YOGA-RELATED INJURIES OCCURRING UNDER SUPERVISION IN THE PREVIOUS 12 MONTHS WERE LOW AT 2.4% OF RESPONDENTS. CONCLUSIONS: YOGA PRACTICE WAS SEEN TO ASSIST IN THE MANAGEMENT OF SPECIFIC HEALTH ISSUES AND MEDICAL CONDITIONS. REGULAR YOGA PRACTICE MAY ALSO EXERT A HEALTHY LIFESTYLE EFFECT INCLUDING VEGETARIANISM, NON-SMOKING, REDUCED ALCOHOL CONSUMPTION, INCREASED EXERCISE AND REDUCED STRESS WITH RESULTING COST BENEFITS TO THE COMMUNITY. 2012 17 362 21 ASSOCIATIONS BETWEEN YOGA PRACTICE AND JOINT PROBLEMS: A CROSS-SECTIONAL SURVEY AMONG 9151 AUSTRALIAN WOMEN. YOGA EXERCISES HAVE BEEN ASSOCIATED WITH JOINT PROBLEMS RECENTLY, INDICATING THAT YOGA PRACTICE MIGHT BE POTENTIALLY DANGEROUS FOR JOINT HEALTH. THIS STUDY AIMED TO ANALYSE WHETHER REGULAR YOGA PRACTICE IS ASSOCIATED WITH THE FREQUENCY OF JOINT PROBLEMS IN UPPER MIDDLE-AGED AUSTRALIAN WOMEN. WOMEN AGED 62-67 YEARS FROM THE AUSTRALIAN LONGITUDINAL STUDY ON WOMEN'S HEALTH (ALSWH) WERE QUESTIONED IN 2013 WHETHER THEY EXPERIENCED REGULAR JOINT PAIN OR PROBLEMS IN THE PAST 12 MONTHS AND WHETHER THEY REGULARLY PRACTICED YOGA. ASSOCIATIONS OF JOINT PROBLEMS WITH YOGA PRACTICE WERE ANALYSED USING CHI-SQUARED TESTS AND MULTIPLE LOGISTIC REGRESSION MODELLING. OF 9151 WOMEN, 29.8% REPORTED REGULAR PROBLEMS WITH STIFF OR PAINFUL JOINTS, AND 15.2, 11.9, 18.1 AND 15.9% REPORTED REGULAR PROBLEMS WITH SHOULDERS, HIPS, KNEES AND FEET, RESPECTIVELY, IN THE PAST 12 MONTHS. YOGA WAS PRACTICED SOMETIMES BY 10.1% AND OFTEN BY 8.4% OF WOMEN. PRACTICING YOGA WAS NOT ASSOCIATED WITH UPPER OR LOWER LIMB JOINT PROBLEMS. NO ASSOCIATION BETWEEN YOGA PRACTICE AND JOINT PROBLEMS HAS BEEN IDENTIFIED. FURTHER STUDIES ARE WARRANTED FOR CONCLUSIVE JUDGEMENT OF BENEFITS AND SAFETY OF YOGA IN RELATION TO JOINT PROBLEMS. 2017 18 1646 16 MOTIVATIONS FOR ADOPTING AND MAINTAINING A YOGA PRACTICE: A NATIONAL CROSS-SECTIONAL SURVEY. BACKGROUND: YOGA PRACTICE IS BECOMING INCREASINGLY POPULAR AROUND THE WORLD, YET LITTLE IS KNOWN REGARDING WHY PEOPLE ADOPT THE PRACTICE OF YOGA OR HOW THEIR REASONS FOR PRACTICE CHANGE WITH CONTINUED PRACTICE. FURTHERMORE, WHETHER THOSE WHO PRACTICE DIFFERENT TYPES OF YOGA HAVE DIFFERENT MOTIVES REMAINS UNKNOWN. METHODS: TO ADDRESS THESE ISSUES, THE AUTHORS CONDUCTED A NATIONAL CROSS-SECTIONAL ONLINE SURVEY OF 1,702 YOGA PRACTITIONERS IN GERMANY, ASKING ABOUT DEMOGRAPHIC INFORMATION AND MOTIVES FOR INITIATING AND CONTINUING YOGA PRACTICE. RESULTS: THE MOST COMMON PRIMARY REASONS FOR STARTING YOGA WERE RELAXATION (26.6%) AND PREVENTION (25.5%), WHICH WERE ALSO THE MOST COMMON SECONDARY REASONS. NINE HUNDRED AND FORTY-ONE (55.3%) REPORTED A DIFFERENT PRIMARY REASON FOR MAINTAINING THAN FOR ADOPTING YOGA PRACTICE. PREVENTION (38.4%) AND SPIRITUALITY (26.4%) WERE THE MOST COMMONLY REPORTED PRIMARY REASONS FOR MAINTAINING YOGA PRACTICE. MORE HIGHLY EDUCATED PARTICIPANTS AND THOSE PRACTICING LONGER THAN 5 YEARS AT THE TIME OF THE SURVEY WERE MORE LIKELY TO HAVE REPORTED A DIFFERENT CURRENT PRIMARY REASON FOR YOGA PRACTICE THAN THAT FOR WHICH THEY STARTED PRACTICING. CONCLUSIONS: THESE RESULTS SHED LIGHT ON YOGA'S APPEAL TO NOVICES AND REGULAR PRACTITIONERS, WITH IMPORTANT IMPLICATIONS FOR MAKING YOGA APPEALING TO BEGINNERS AS WELL AS PROMOTING THE PRACTICE AS A LONG-TERM LIFESTYLE BEHAVIOR. 2019 19 2306 28 TRAINING BENEFITS AND INJURY RISKS OF STANDING YOGA APPLIED IN MUSCULOSKELETAL PROBLEMS: LOWER LIMB BIOMECHANICAL ANALYSIS. STANDING YOGA POSES STRENGTHEN A PERSON'S LEGS AND HELPS TO ACHIEVE THE GOAL OF MUSCULOSKELETAL REHABILITATION, BUT INADEQUATE EXERCISE PLANNING CAN CAUSE INJURIES. THIS STUDY INVESTIGATED CHANGES IN THE ELECTROMYOGRAM AND JOINT MOMENTS OF FORCE (JMOFS) OF LOWER EXTREMITIES DURING COMMON STANDING YOGA POSES IN ORDER TO EXPLORE THE FEASIBILITY AND POSSIBLE INJURY RISK IN DEALING WITH MUSCULOSKELETAL PROBLEMS. ELEVEN YOGA INSTRUCTORS WERE RECRUITED TO EXECUTE FIVE YOGA POSES (CHAIR, TREE, WARRIOR 1, 2, AND 3). THE RESULTS REVEALED SIGNIFICANT DIFFERENCES IN HIP, KNEE, AND ANKLE JMOFS AND VARYING DEGREES OF MUSCLE ACTIVATION AMONG THE POSES. AMONG THESE POSES, RECTUS FEMORIS MUSCLE ACTIVATION DURING THE CHAIR POSE WAS THE HIGHEST, WARRIOR 2 PRODUCED THE HIGHEST MUSCLE ACTIVATION IN THE VASTUS LATERALIS OF THE FRONT LIMB, WHILE WARRIOR 1 HAD THE HIGHEST MUSCLE ACTIVATION IN THE VASTUS MEDIALIS OF THE BACK LIMB. THEREFORE, ALL THREE POSES CAN POSSIBLY BE SUGGESTED AS A THERAPEUTIC INTERVENTION FOR QUADRICEPS STRENGTHENING. WARRIOR 1 WAS POSSIBLY SUGGESTED AS A THERAPEUTIC INTERVENTION IN ORDER TO REDUCE EXCESSIVE LATERAL OVERLOAD OF THE PATELLA, BUT THE POSSIBLE ADVERSE EFFECTS OF WARRIOR 2 WITH THE HIGHEST KNEE ADDUCTOR JMOF IN THE BACK LIMB COULD RAISE JOINT REACTION FORCES ACROSS THE MEDIAL CONDYLES. IN SINGLE-LEG BALANCE POSTURES, WARRIOR 3 HAD UNIQUE TRAINING EFFECTS ON THE HAMSTRING, AND IS THEREFORE SUGGESTED AS A PART OF HAMSTRING REHABILITATION EXERCISES. THE TREE POSE INDUCED LOW LOWER-EXTREMITY JMOFS AND A LOW LEVEL OF THIGH MUSCLE ACTIVATIONS WHEN IT WAS PERFORMED BY SENIOR INSTRUCTORS WITH EXCELLENT BALANCE CONTROL; HOWEVER, FOR YOGA BEGINNERS WITH INSUFFICIENT STABILITY, IT WILL BE A USEFUL TRAINING MODE FOR STRENGTHENING THE MUSCLES THAT HELP TO KEEP ONE UPRIGHT. THIS STUDY QUANTIFIED THE PHYSICAL DEMANDS OF YOGA POSES USING BIOMECHANICAL DATA AND ELUCIDATED THE STRUCTURES AND PRINCIPLES UNDERLYING EACH YOGA MOVEMENT. THIS IS CRUCIAL FOR YOGA PRACTITIONERS. 2021 20 1445 23 INCREASING TREND OF YOGA PRACTICE AMONG U.S. ADULTS FROM 2002 TO 2017. INTRODUCTION: BENEFITS, RISKS, AND THE INCREASING POPULARITY OF YOGA USE WARRANT ASSESSING YOGA PRACTICE PREVALENCE AND USERS' PROFILES. THIS STUDY DESCRIBES TRENDS IN YOGA PRACTICE EXCLUSIVELY AMONG AMERICAN ADULTS FROM 2002 TO 2017, COMPARES THE PROFILE OF YOGA USERS, AND IDENTIFIES FACTORS RELATED TO YOGA USE OVER TIME. MATERIALS AND METHODS: THIS STUDY IS A SECONDARY ANALYSIS DONE IN 2019 AND 2020 USING THE NATIONAL HEALTH INTERVIEW SURVEY (NHIS) 2002, 2007, 2012, AND 2017 DATA. POPULATION WEIGHTS WERE USED TO OBTAIN STATISTICALLY ACCURATE ESTIMATES OF YOGA USE PREVALENCE FOR THE U.S. POPULATION. DESCRIPTIVE STATISTICS WERE USED TO PROFILE THE SOCIODEMOGRAPHIC AND HEALTH-RELATED CHARACTERISTICS OF YOGA USERS. MULTIVARIABLE LOGISTIC REGRESSION WAS USED TO IDENTIFY FACTORS ASSOCIATED WITH YOGA USE IN EACH COHORT DEFINED BY THE NHIS YEAR. RESULTS: YOGA PRACTICE PREVALENCE NEARLY TRIPLED FROM 5.1% IN 2002 TO 13.7% IN 2017 (WEIGHTED ESTIMATE 10,386,456 AND 32,761,194 AMERICAN ADULTS, RESPECTIVELY). TYPICAL YOGA USERS WERE YOUNG NON-HISPANIC SINGLE WHITE FEMALE ADULTS WITH BACHELOR OR HIGHER EDUCATION AND HEALTH INSURANCE, AND RESIDED IN THE WEST REGION OF THE UNITED STATES. YOGA USE PATTERN CHANGE OVER TIME WAS SIGNIFICANTLY RELATED TO ONLY YOUNGER AGE (P < 0.001) BUT NOT TO OTHER SOCIODEMOGRAPHIC OR HEALTH-RELATED FACTORS. CONCLUSIONS: YOGA HAS GAINED INCREASING POPULARITY IN THE PAST TWO DECADES AMONG AMERICAN ADULTS, WITH YOUNGER ADULTS BEING THE DRIVING FORCE. YOGA APPEARS TO BE ADOPTED FOR GENERAL WELL-BEING OR PREVENTION MORE THAN FOR SPECIFIC DISEASE TREATMENT. FUTURE RESEARCH SHOULD EVALUATE HOW YOGA CAN BE EFFECTIVELY AND SAFELY INTEGRATED INTO PREVENTIVE MEDICINE STRATEGIES. 2021