1 2386 174 YOGA AIDS BLOOD PRESSURE RECOVERY AFTER EXPOSURE OF FOREHEAD TO COLD: A PILOT STUDY. CONTEXT: HYPOTENSION THAT OCCURS AFTER A SINGLE BOUT OF AEROBIC EXERCISE ALSO ATTENUATES THE VASCULAR RESPONSE TO DISCRETE STRESSORS, AN EFFECT THAT CAN LAST FOR HOURS. IT IS UNKNOWN WHETHER THE HYPOTENSIVE BENEFITS OF TRADITIONAL EXERCISE EXTEND TO ALTERNATIVE FORMS OF MINDFUL EXERCISE, SUCH AS YOGA, TO CONFER TRANSIENT PROTECTION AGAINST NEUROVASCULAR CHALLENGES THAT INCREASE BLOOD PRESSURE (BP). OBJECTIVES: THE STUDY INTENDED TO EXAMINE THE EFFECTS OF ACUTE EXERCISE ON NEUROVASCULAR RESPONSES TO EXPOSURE OF THE FOREHEAD OF FEMALE YOGA PRACTITIONERS TO VASOCONSTRICTIVE COLD (IE, TO COLD PRESSOR STRESS). DESIGN: THE RESEARCH TEAM DESIGNED A STUDY WITH 3 CONDITIONS (IE, WITH PARTICIPANTS' PARTICIPATION IN 3 ACTIVITIES ON SEPARATE DAYS IN A REPEATED-MEASURES DESIGN). PARTICIPANTS WERE RANDOMLY ASSIGNED TO PERFORM THE ACTIVITIES IN 1 OF 3 ORDERS ACROSS SUCCESSIVE VISITS. PARTICIPANTS: PARTICIPANTS WERE 9 FEMALES, 20 TO 33 Y OLD, WHO HAD REGULARLY PRACTICED HATHA YOGA FROM 6 MO TO 12 Y BEFORE THE START OF THE STUDY. ALL PARTICIPANTS WERE NORMOTENSIVE AT ENTRY TO THE STUDY AND HAD NORMAL BODY WEIGHTS FOR THEIR HEIGHTS. INTERVENTIONS: ALL PARTICIPANTS PERFORMED 3 ACTIVITIES: (1) SELF-DIRECTED YOGA PRACTICE, THE INTERVENTION; (2) CYCLING EXERCISE AT A SELF-SELECTED INTENSITY, A POSITIVE CONTROL; AND (3) QUIET REST, A NEGATIVE CONTROL. OUTCOME MEASURES: POSTINTERVENTION, PARTICIPANTS' FOREHEADS WERE EXPOSED TO COLD. THEIR SYSTOLIC BLOOD PRESSURES (SBPS), DIASTOLIC BLOOD PRESSURES (DBPS), PULSE RATES, AND FOREARM OXYGENATION WERE ASSESSED USING NEAR-INFRARED SPECTROSCOPY. RESULTS: PARTICIPANTS' SBPS AND DBPS INCREASED DURING COLD PRESSOR STRESS UNDER ALL CONDITIONS, CONCURRENT WITH DECREASED FOREARM OXYGENATION. DURING RECOVERY FROM THE COLD, PARTICIPANTS' BPS DECLINED TO NEAR PRECOLD PRESSOR BASELINE LEVELS AFTER YOGA AND CYCLING BUT REMAINED ELEVATED AFTER QUIET REST. CONCLUSIONS: THE ENHANCED RECOVERY OF BP FROM COLD APPLIED TO THE FOREHEAD AFTER YOGA PRACTICE OR CYCLING EXERCISE SUGGESTS THAT BOTH TYPES OF EXERCISE PROMOTE A HYPOTENSIVE RESPONSE, WHICH COULD INDICATE LOWERED CARDIOVASCULAR RISK.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
2 2743  41 YOGA PRACTICE IMPROVES EXECUTIVE FUNCTION BY ATTENUATING STRESS LEVELS. BACKGROUND: PROLONGED ACTIVATION OF THE HYPOTHALAMUS-PITUITARY-ADRENAL SYSTEM IS THOUGHT TO HAVE DELETERIOUS EFFECTS ON BRAIN FUNCTION. NEUROENDOCRINE STUDIES SUGGEST THAT BRAIN EXPOSURE TO HIGHER CORTISOL CONCENTRATIONS CONTRIBUTE TO COGNITIVE DEFICITS AS WE AGE. MIND-BODY TECHNIQUES SUCH AS YOGA HAVE SHOWN TO IMPROVE STRESS LEVELS BY RESTORING THE BODY'S SYMPATHETIC-PARASYMPATHETIC BALANCE. THE OBJECTIVE OF THIS STUDY WAS TO DETERMINE WHETHER YOGA PRACTICE MODERATED THE STRESS RESPONSE RESULTING IN IMPROVED EXECUTIVE FUNCTION. METHODS: SEDENTARY COMMUNITY DWELLING OLDER ADULTS (N=118, MEAN AGE=62.02) WERE RANDOMIZED TO AN 8-WEEK YOGA INTERVENTION OR A STRETCHING CONTROL GROUP. AT BASELINE AND FOLLOWING 8 WEEKS, ALL PARTICIPANTS COMPLETED MEASURES OF EXECUTIVE FUNCTION, SELF-REPORTED STRESS AND ANXIETY AND PROVIDED SALIVA SAMPLES BEFORE AND AFTER COGNITIVE TESTING TO ASSESS CORTISOL. RESULTS: YOGA PARTICIPANTS SHOWED IMPROVED ACCURACY ON EXECUTIVE FUNCTION MEASURES AND AN ATTENUATED CORTISOL RESPONSE COMPARED TO THEIR STRETCHING COUNTERPARTS WHO SHOWED INCREASED CORTISOL LEVELS AND POOR COGNITIVE PERFORMANCE AT FOLLOW UP. THE CHANGE IN CORTISOL LEVELS AS WELL AS SELF-REPORTED STRESS AND ANXIETY LEVELS PREDICTED PERFORMANCE ON THE RUNNING SPAN TASK, N-BACK WORKING MEMORY AND TASK SWITCHING PARADIGM (BETA'S=0.27-0.38, P'S</=0.05 FOR YOGA AND BETA'S=-0.37-0.47, P'S</=0.01 FOR STRETCHING CONTROL). CONCLUSION: EIGHT WEEKS OF REGULAR YOGA PRACTICE RESULTED IN IMPROVED WORKING MEMORY PERFORMANCE THAT WAS MEDIATED BY AN ATTENUATED RESPONSE TO STRESS AS MEASURED BY SELF-REPORT STRESS AND OBJECTIVE SALIVARY CORTISOL MEASUREMENTS. THIS TRIAL OFFERS EVIDENCE FOR NON-TRADITIONAL PHYSICAL ACTIVITY INTERVENTIONS SUCH AS YOGA THAT MAY BE HELPFUL IN RESTORING HPA BALANCE IN OLDER ADULTS, THEREBY PREVENTING COGNITIVE DECLINE.	2016	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
3 2731  33 YOGA OFFERS CARDIOVASCULAR PROTECTION IN EARLY POSTMENOPAUSAL WOMEN. CONTEXT: POSTMENOPAUSE, AN ESTROGEN DEFICIENT STATE COMES WITH INCREASED INCIDENCE OF CARDIOVASCULAR DISEASES (CVDS). YOGA HAS BEEN DESCRIBED AS HAVING A BENEFICIAL EFFECT ON HEART RATE VARIABILITY (HRV), A MARKER FOR CARDIAC AUTONOMIC ACTIVITY WHICH CAN ASSESS CARDIOVASCULAR RISK, IN VARIOUS POPULATIONS. AIM: THE AIM OF THE STUDY WAS TO STUDY THE EFFECT OF 3-MONTH LONG YOGA PRACTICE ON HRV IN EARLY POSTMENOPAUSAL WOMEN. SETTINGS AND DESIGN: A PROSPECTIVE LONGITUDINAL STUDY OF 67 WOMEN WITHIN 5 YEARS OF MENOPAUSE BETWEEN 45 AND 60 YEARS OF AGE ATTENDING MENOPAUSE CLINIC OF DEPARTMENT OF GYNAECOLOGY, SUCHETA KRIPLANI HOSPITAL FULFILLING INCLUSION AND EXCLUSION CRITERIA AND CONSENTING WERE ENROLLED FOR THE STUDY. SUBJECTS AND METHODS: HRV OF 37 CASES (YOGA GROUP) AND 30 CONTROLS (NON-YOGA GROUP) WAS RECORDED PRE AND 3-MONTH POSTINTERVENTION. STATISTICAL ANALYSIS USED: GRAPHPAD PRISM VERSION 5 SOFTWARE WAS USED. VALUES ARE A MEAN AND STANDARD ERROR OF MEAN. STATISTICAL SIGNIFICANCE WAS SET UP AT P < 0.05. RESULTS: IN HRV, FREQUENCY DOMAIN ANALYSIS SHOWED A SIGNIFICANT FALL IN LOW FREQUENCY (LF) IN NORMALIZED UNITS (NU) AND LF: HIGH FREQUENCY (HF) RATIO AND SIGNIFICANT RISE IN HF IN NU IN THE YOGA GROUP (DEPICTING PARASYMPATHETIC DOMINANCE) AGAINST A SIGNIFICANT RISE IN LF (NU) AND LF: HF RATIO AND SIGNIFICANT FALL IN HF (NU) IN NON-YOGA GROUP (INDICATING SYMPATHETIC DOMINANCE). TIME DOMAIN ANALYSIS SHOWED A SIGNIFICANT DECREASE IN STANDARD DEVIATION OF NN INTERVALS IN NON-YOGA GROUP AGAINST NONSIGNIFICANT CHANGES IN YOGA GROUP INDICATING DETERIORATION IN PARASYMPATHETIC ACTIVITY IN NON-YOGA GROUP. CONCLUSIONS: THREE-MONTH LONG YOGA PRACTICE IMPROVED HRV IN EARLY POSTMENOPAUSAL WOMEN SIGNIFICANTLY AND HAS THE POTENTIAL TO ATTENUATE THE CVD RISK IN POSTMENOPAUSAL WOMEN.	2018	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
4  724  54 EFFECT OF LAUGHTER YOGA ON MOOD AND HEART RATE VARIABILITY IN PATIENTS AWAITING ORGAN TRANSPLANTATION: A PILOT STUDY. CONTEXT: RESEARCH SHOWS THAT LAUGHTER HAS MYRIAD HEALTH BENEFITS, YET THE MEDICAL COMMUNITY HAS NOT IMPLEMENTED IT FORMALLY AS A TREATMENT. PATIENTS AWAITING ORGAN TRANSPLANTATION HAVE SIGNIFICANT PHYSICAL DISABILITIES AND ARE AT RISK FOR PSYCHOLOGICAL DISTRESS. ATTENUATED HEART RATE VARIABILITY (HRV) IS A RISK FACTOR FOR A NEGATIVE LONG-TERM OUTCOME IN SOME PATIENTS. OBJECTIVE: THE STUDY INTENDED TO EVALUATE THE CLINICAL UTILITY OF LAUGHTER YOGA IN IMPROVING PSYCHOLOGICAL AND PHYSIOLOGICAL MEASURES IN OUTPATIENTS AWAITING ORGAN TRANSPLANTATION. POSITIVE RESULTS WOULD INDICATE PROMISING AREAS TO PURSUE IN A FOLLOW-UP STUDY. DESIGN: SIX PARTICIPANTS MET FOR 10 SESSIONS OVER 4 WEEKS. THE RESEARCH TEAM MEASURED EACH PARTICIPANT'S HEART RATE, HRV, BLOOD PRESSURE (BP), AND IMMEDIATE MOOD BEFORE AND AFTER THE LAUGHTER AND CONTROL INTERVENTIONS. THE TEAM ASSESSED PARTICIPANTS' LONGER-TERM MOOD (ANXIETY AND DEPRESSION) AT THE STUDY'S INITIATION, AFTER A NO-TREATMENT CONTROL WEEK, AND AT THE END OF THE STUDY. SETTING: THE STUDY OCCURRED AT THE DEPARTMENT OF SURGERY AND MEDICINE AT THE UNIVERSITY OF ARIZONA HEALTH SCIENCES CENTER, TUCSON. PARTICIPANTS: PARTICIPANTS WERE PATIENTS AWAITING TRANSPLANTS (THREE HEART AND THREE LUNG), TWO WOMEN AND FOUR MEN (AGES 51-69 Y). PARTICIPANTS HAD RECEIVED NO MAJOR SURGERY IN THE 3 MONTHS PRIOR TO THE INTERVENTION, DID NOT HAVE A HERNIA OR UNCONTROLLED HYPERTENSION, AND DID NOT FALL INTO THE NEW YORK HEART ASSOCIATION FUNCTION CLASS 4. INTERVENTION: THE 20-MINUTE LAUGHTER INTERVENTION INVOLVED BREATHING AND STRETCHING EXERCISES, SIMULATED LAUGHTER (IE, UNCONDITIONAL LAUGHTER THAT IS NOT CONTINGENT ON THE ENVIRONMENT), CHANTING, CLAPPING, AND A MEDITATION. THE 20-MINUTE CONTROL INTERVENTION INVOLVED THE STUDY'S PERSONNEL DISCUSSING HEALTH AND STUDY-RELATED TOPICS WITH THE PARTICIPANTS. OUTCOME MEASURES: THE RESEARCH TEAM MEASURED BP, HEART RATE, AND HRV AND ADMINISTERED THE PROFILE OF MOOD STATES, BECK ANXIETY INVENTORY, AND BECK DEPRESSION INVENTORY-II TO EVALUATE IMMEDIATE AND LONGER-TERM MOOD. THE TEAM HAD PLANNED QUANTITATIVE STATISTICAL ANALYSIS OF THE DATA AT THE STUDY'S INITIATION BUT DID NOT COMPLETE IT BECAUSE THE NUMBER OF ENROLLED PARTICIPANTS WAS TOO LOW FOR THE ANALYSIS TO BE MEANINGFUL. THE TEAM VISUALLY EXAMINED THE DATA, HOWEVER, FOR TRENDS THAT WOULD INDICATE AREAS TO EXAMINE FURTHER IN A FOLLOW-UP STUDY. RESULTS: PARTICIPANTS SHOWED IMPROVED IMMEDIATE MOOD (VIGOR-ACTIVITY AND FRIENDLINESS) AND INCREASED HRV AFTER THE LAUGHTER INTERVENTION. BOTH THE LAUGHTER AND CONTROL INTERVENTIONS APPEARED TO IMPROVE LONGER-TERM ANXIETY. TWO PARTICIPANTS AWAITING A LUNG TRANSPLANT DROPPED OUT OF THE STUDY, AND NO ADVERSE EVENTS OCCURRED. CONCLUSION: THIS PILOT STUDY SUGGESTS THAT LAUGHTER YOGA MAY IMPROVE HRV AND SOME ASPECTS OF MOOD, AND THIS TOPIC WARRANTS FURTHER RESEARCH.	2012	
                                                                                                                                                                                                              
5  341  56 ARTERIAL BLOOD PRESSURE AND CARDIOVASCULAR RESPONSES TO YOGA PRACTICE. CONTEXT: YOGA IS QUALITATIVELY DIFFERENT FROM ANY OTHER MODE OF PHYSICAL ACTIVITY IN THAT IT CONSISTS OF A UNIQUE COMBINATION OF ISOMETRIC MUSCULAR CONTRACTIONS, STRETCHING EXERCISES, RELAXATION TECHNIQUES, AND BREATHING EXERCISES. IN PARTICULAR, YOGA POSTURES CONSIST OF SYSTEMIC ISOMETRIC CONTRACTIONS THAT ARE KNOWN TO ELICIT MARKED INCREASES IN MEAN BLOOD PRESSURE THAT ARE NOT OBSERVED DURING DYNAMIC EXERCISE. STRETCHING CAN ALSO INDUCE INCREASES IN BLOOD PRESSURE AND SYMPATHETIC NERVE ACTIVITY IN THE MUSCLES. CURRENTLY, NOT MUCH IS KNOWN ABOUT CHANGES IN BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES TO YOGA PRACTICE. OBJECTIVE: THE STUDY INTENDED TO DETERMINE THE ACUTE EFFECTS OF ONE SESSION OF HATHA YOGA PRACTICE ON BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES. TO GAIN INSIGHT INTO THE LONG-TERM EFFECTS OF YOGA PRACTICE, BOTH NOVICE (N = 19) AND ADVANCED (N = 18) YOGA PRACTITIONERS WERE STUDIED. DESIGN: THE TWO GROUPS WERE MATCHED FOR AGE, GENDER, BMI, AND BLOOD PRESSURE. SETTING: THE SETTING WAS A RESEARCH LABORATORY AT A UNIVERSITY. PARTICIPANTS: THIRTY-SIX APPARENTLY HEALTHY, NONOBESE, SEDENTARY, OR RECREATIONALLY ACTIVE INDIVIDUALS FROM THE COMMUNITY PARTICIPATED IN THE STUDY. INTERVENTION THE INTERVENTION COMPRISED ONE SESSION OF YOGA PRACTICE, IN WHICH PARTICIPANTS FOLLOWED A CUSTOM MADE INSTRUCTIONAL VIDEO PROVIDING A YOGA ROUTINE THAT CONSISTED OF A SERIES OF 23 HATHA-BASED YOGA POSTURES. OUTCOME MEASURES: PRIOR TO ARRIVING AT THE LABORATORY, EACH PARTICIPANT COMPLETED A RESEARCH HEALTH QUESTIONNAIRE, A TRAINING-STATUS QUESTIONNAIRE, AND A YOGA-EXPERIENCE QUESTIONNAIRE. PRIOR TO THE YOGA PRACTICE, EACH PARTICIPANT'S HEIGHT, BODY FAT PERCENTAGE, TRUNK OR LUMBAR FLEXIBILITY, AND ARTERIAL STIFFNESS AS ASSESSED BY CAROTID FEMORAL PULSE WAVE VELOCITY (CFPWV) WERE MEASURED. FOR EACH POSTURE DURING THE YOGA PRACTICE, THE STUDY CONTINUOUSLY MEASURED SYSTOLIC, MEAN, AND DIASTOLIC BLOOD PRESSURES, HEART RATE, STROKE VOLUME, AND CARDIAC OUTPUT. RESULTS: SYSTOLIC, MEAN, AND DIASTOLIC BLOOD PRESSURES INCREASED SIGNIFICANTLY DURING THE YOGA PRACTICE. THE MAGNITUDE OF THESE INCREASES IN BLOOD PRESSURE WAS GREATEST WITH STANDING POSTURES. HEART RATE AND CARDIAC OUTPUT INCREASED SIGNIFICANTLY DURING YOGA PRACTICE, ESPECIALLY WITH STANDING POSTURES. OVERALL, NO DIFFERENCES EXISTED IN CARDIOVASCULAR RESPONSES BETWEEN THE NOVICE AND ADVANCED PRACTITIONERS THROUGHOUT THE YOGA TESTING SESSION; CFPWV VELOCITY WAS SIGNIFICANTLY AND INVERSELY ASSOCIATED WITH LUMBAR FLEXION BUT NOT WITH SIT-AND-REACH TEST SCORES. CONCLUSIONS: THE RESEARCH TEAM CONCLUDED THAT A VARIETY OF HATHA YOGA POSTURES, ESPECIALLY STANDING POSTURES, EVOKED SIGNIFICANT INCREASES IN BLOOD PRESSURE. THE ELEVATION IN BLOOD PRESSURE DUE TO YOGA PRACTICE WAS ASSOCIATED WITH INCREASES IN CARDIAC OUTPUT AND HEART RATE, WHICH ARE RESPONSES SIMILAR TO THOSE OBSERVED IN ISOMETRIC EXERCISE. THE LACK OF OBVIOUS DIFFERENCES IN BLOOD PRESSURE AND OTHER CARDIOVASCULAR RESPONSES BETWEEN NOVICE AND ADVANCED YOGA PRACTITIONERS SUGGESTS THAT LONG-TERM YOGA PRACTICE DOES NOT ATTENUATE ACUTE YOGA RESPONSES.	2013	

6  265  48 ACUTE EFFECTS OF AEROBIC EXERCISE AND HATHA YOGA ON CRAVING TO SMOKE. INTRODUCTION: RECENT STUDIES HAVE EXAMINED THE EFFECTS OF PHYSICAL ACTIVITY ON CRAVING TO SMOKE AND SMOKING WITHDRAWAL. THE CURRENT STUDY WAS DESIGNED TO COMPARE AND CONTRAST THE EFFECTS OF 2 DIFFERENT FORMS OF PHYSICAL ACTIVITY ON GENERAL AND CUE-ELICITED CRAVING TO SMOKE. METHODS: FOLLOWING 1-HR NICOTINE ABSTINENCE, 76 DAILY SMOKERS WERE RANDOMLY ASSIGNED TO ENGAGE IN A 30-MIN BOUT OF CARDIOVASCULAR EXERCISE (CE; BRISK WALK ON A TREADMILL), HATHA YOGA (HY), OR A NONACTIVITY CONTROL CONDITION. PARTICIPANTS COMPLETED MEASURES OF CRAVING AND MOOD, AND A SMOKING CUE REACTIVITY ASSESSMENT, BEFORE, IMMEDIATELY FOLLOWING, AND APPROXIMATELY 20 MIN AFTER THE PHYSICAL ACTIVITY OR CONTROL CONDITIONS. RESULTS: COMPARED WITH THE CONTROL CONDITION, PARTICIPANTS IN EACH OF THE PHYSICAL ACTIVITY GROUPS REPORTED A DECREASE IN CRAVING TO SMOKE, AN INCREASE IN POSITIVE AFFECT, AND A DECREASE IN NEGATIVE AFFECT. IN ADDITION, CRAVING IN RESPONSE TO SMOKING CUES WAS SPECIFICALLY REDUCED AMONG THOSE WHO ENGAGED IN CE, WHEREAS THOSE WHO ENGAGED IN HY REPORTED A GENERAL DECREASE IN CRAVINGS. CONCLUSIONS: THIS STUDY PROVIDES FURTHER SUPPORT FOR THE USE OF EXERCISE BOUTS FOR ATTENUATING CIGARETTE CRAVINGS DURING TEMPORARY NICOTINE ABSTINENCE. RESULTS ALSO SUGGEST THAT CE CAN ATTENUATE CRAVINGS IN RESPONSE TO SMOKING CUES. THERE ARE SEVERAL AREAS FOR FURTHER RESEARCH THAT MAY IMPROVE INTEGRATION OF EXERCISE WITHIN SMOKING CESSATION TREATMENT.	2011	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
7 1835  27 PSYCHOPHYSIOLOGICAL CHANGES AT THE TIME OF EXAMINATION IN MEDICAL STUDENTS BEFORE AND AFTER THE PRACTICE OF YOGA AND RELAXATION. THE EFFECT OF YOGA AND RELAXATION CHANGES IN PSYCHOPHYSIOLOGICAL PARAMETERS IN RESPONSE TO THE STRESS OF EXAMINATION IN 75 MEDICAL STUDENTS WAS STUDIED. INITIALLY FIVE PARAMETERS (ANXIETY LEVEL, HEART RATE, BLOOD PRESSURE, GALVANIC SKIN RESISTANCE AND CHOICE REACTION TIME) WERE RECORDED, A MONTH BEFORE THE EXAMINATION AND ON THE DAY OF EXAMINATION. STUDENTS WERE THEN RANDOMLY DIVIDED INTO 3 GROUP OF 25 EACH. ONE GROUP PRACTICED YOGA (GROUP- Y), AND ANOTHER GROUP PRACTICED RELAXATION (GROUP-R) REGULARLY FOR THREE MONTHS. THE THIRD GROUP WAS CONTROL GROUP (GROUP-C). ALL THE PARAMETERS WERE RECORDED AFTER THE CHANGES IN ANXIETY LEVEL, HEART RATE, BLOOD PRESSURE, AND GALVANIC SKIN RESISTANCE IN RESPONSE TO STRESS OF EXAMINATION WERE SIGNIFICANTLY ATTENUATED AND THERE WAS SIGNIFICANT IMPROVEMENT IN CHOICE REACTION TIME IN GROUP-Y AND GROUP-R AS COMPARED TO GROUP-C AFTER YOGA AND RELAXATION.	1998	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
8  209  51 A SINGLE SESSION OF HATHA YOGA IMPROVES STRESS REACTIVITY AND RECOVERY AFTER AN ACUTE PSYCHOLOGICAL STRESS TASK-A COUNTERBALANCED, RANDOMIZED-CROSSOVER TRIAL IN HEALTHY INDIVIDUALS. OBJECTIVES: YOGA IS PROMOTED AS AN ANTI-STRESS ACTIVITY, HOWEVER, LITTLE IS KNOWN ABOUT THE MECHANISMS THROUGH WHICH IT ACTS. THE PRESENT STUDY INVESTIGATED THE ACUTE EFFECTS OF A HATHA YOGA SESSION, DISPLAYED ON A VIDEO, ON THE RESPONSE TO AND RECOVERY FROM AN ACUTE PSYCHOLOGICAL STRESSOR. METHODS: TWENTY-FOUR HEALTHY YOUNG ADULTS TOOK PART IN A COUNTERBALANCED, RANDOMIZED-CROSSOVER TRIAL, WITH A YOGA AND A CONTROL CONDITION (WATCHING TV). PARTICIPANTS ATTENDED THE LABORATORY IN THE AFTERNOON ON TWO DAYS AND EACH SESSION COMPRISED A BASELINE, CONTROL OR YOGA TASK, STRESS TASK AND RECOVERY. BLOOD PRESSURE (BP), HEART RATE (HR) AND SALIVARY CORTISOL RESPONSES WERE MEASURED. STATE COGNITIVE- AND SOMATIC-ANXIETY ALONG WITH SELF-CONFIDENCE WERE ASSESSED BEFORE AND AFTER THE STRESSOR. RESULTS: ALTHOUGH NO DIFFERENCE IN THE BP OR HR RESPONSES TO STRESS WERE FOUND BETWEEN CONDITIONS, SYSTOLIC BP (P=0.047) AND DIASTOLIC BP (P=0.018) RECOVERY FROM STRESS WERE SIGNIFICANTLY ACCELERATED AND SALIVARY CORTISOL REACTIVITY WAS SIGNIFICANTLY LOWER (P=0.01) IN THE YOGA CONDITION. A YOGA SESSION ALSO INCREASED SELF-CONFIDENCE (P=0.006) IN PREPARATION FOR THE TASK AND AFTER COMPLETION. MOREOVER, SELF-CONFIDENCE REPORTED AFTER THE STRESS TASK WAS CONSIDERED DEBILITATIVE TOWARDS PERFORMANCE IN THE CONTROL CONDITION, BUT REMAINED FACILITATIVE IN THE YOGA CONDITION. CONCLUSION: OUR RESULTS SHOW THAT A SINGLE VIDEO-INSTRUCTED SESSION OF HATHA YOGA WAS ABLE TO IMPROVE STRESS REACTIVITY AND RECOVERY FROM AN ACUTE STRESS TASK IN HEALTHY INDIVIDUALS. THESE POSITIVE PRELIMINARY FINDINGS ENCOURAGE FURTHER INVESTIGATION IN AT-RISK POPULATIONS IN WHICH THE MAGNITUDE OF EFFECTS MAY BE GREATER, AND SUPPORT THE USE OF YOGA FOR STRESS REACTIVITY AND RECOVERY.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
9 2474  44 YOGA AS AN ADJUNCT ACTIVITY FOR MEDICAL STUDENTS LEARNING ANATOMY. BACKGROUND: MEDICAL STUDENTS EXPERIENCE HIGH LEVELS OF STRESS DURING TRAINING DUE TO DEMANDING COURSE LOADS WHICH OFTEN LEAVES LESS TIME FOR SELF-CARE. THIS STUDY COMBINES THE SELF-CARE TECHNIQUE OF YOGA WITH LEARNING ANATOMICAL LOCATIONS, INNERVATIONS, ACTIONS, AND FUNCTIONS OF THE MUSCLES AND ORGANS TO DETERMINE IF ANATOMY TESTS SCORES ARE IMPROVED AND WHETHER STUDENTS' STRESS LEVELS ATTENUATE FROM PARTICIPATING IN YOGA. METHODS: IN THIS RANDOMIZED CONTROLLED STUDY, 64 STUDENT VOLUNTEERS WERE RANDOMIZED INTO EITHER A YOGA INTERVENTION GROUP OR WAIT LIST CONTROL GROUP THROUGHOUT THE M1 ANATOMY COURSE. THE YOGA GROUP (N = 32) PARTICIPATED IN 8 YOGA SESSIONS SYNCED WITH THE ANATOMY TOPICS THEY WERE LEARNING IN LECTURE. THE WAIT LIST GROUP (N = 32) WENT THROUGH THEIR NORMAL ANATOMY CURRICULUM BUT HAD AN OPTION TO PARTICIPATE IN THE SAME YOGA SESSIONS AFTER THE ANATOMY COURSE. THE PRIMARY RESEARCH PURPOSE WAS TO DETERMINE WHETHER YOGA IMPROVED ANATOMY EXAM PERFORMANCE BY COMPARING FOUR ANATOMY EXAM SCORES BETWEEN THE TWO GROUPS. THE SECONDARY RESEARCH PURPOSES INCLUDED THE FOLLOWING: TO DETERMINE WHETHER YOGA CLASSES INCLUDING ANATOMY TEACHING STILL CONFERRED ACUTE AND LONG-LASTING STRESS RELIEF BY, RESPECTIVELY, COMPARING A STUDENTS' OWN PRE- AND POST-YOGA STRESS LEVEL AND SELF-PERCEIVED STRESS LEVELS BETWEEN THE TWO GROUPS; AND TO DETERMINE IF A STUDENT'S CONFIDENCE IN ANATOMY WAS IMPROVED AFTER A YOGA SESSION. RESULTS: THERE WAS NO SIGNIFICANT DIFFERENCE IN ANATOMY EXAM PERFORMANCE BETWEEN STUDENTS WHO RECEIVED YOGA AND THOSE ON THE WAITLIST (ALL P > 0.05). FOR STUDENTS WHO RECEIVED YOGA, THEIR AVERAGE SELF-REPORTED STRESS LEVELS DECREASED AFTER EACH YOGA SESSION, THEIR AVERAGE DASS (DEPRESSION, ANXIETY AND STRESS SCALE) SCORE DECREASED AFTER A YOGA SESSION, BUT THEY WERE NOT SIGNIFICANTLY LESS STRESSED THAN THEIR WAITLIST PEERS PRIOR TO AN EXAM, AND THEIR SELF-REPORTED CONFIDENCE IN ANATOMY MATERIAL RELATED TO THE BACK, UPPER EXTREMITY, HEAD AND NECK, AND ABDOMEN/PELVIS INCREASED. CONCLUSION: WITH THIS SAMPLE, THERE WAS NO EVIDENCE THAT YOGA SESSIONS PAIRED WITH ANATOMY LECTURE MATERIAL IMPROVED OVERALL ANATOMY EXAM PERFORMANCE, AS OPPOSED TO ONLY THE MUSCULOSKELETAL PORTION WHICH OTHER STUDIES HAVE LOOKED AT. HOWEVER, YOGA ACUTELY REDUCED STRESS LEVELS, AND SUBJECTIVE FEELINGS OF KNOWLEDGE IMPROVEMENT WERE NOTED BY PARTICIPANTS. BOTH OF THESE CAN PROVIDE BENEFITS TO MEDICAL STUDENTS.	2022	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
10 1063  43 EFFECTS OF YOGA ON HEART RATE VARIABILITY AND MOOD IN WOMEN: A RANDOMIZED CONTROLLED TRIAL. OBJECTIVE: TO EXAMINE THE EFFECTS OF AN 8-WEEK YOGA PROGRAM ON HEART RATE VARIABILITY AND MOOD IN GENERALLY HEALTHY WOMEN. DESIGN: RANDOMIZED CONTROLLED TRIAL. PARTICIPANTS: FIFTY-TWO HEALTHY WOMEN WERE RANDOMLY ASSIGNED TO A YOGA GROUP OR A CONTROL GROUP. INTERVENTIONS: PARTICIPANTS IN THE YOGA GROUP COMPLETED AN 8-WEEK YOGA PROGRAM, WHICH COMPRISED A 60-MINUTE SESSION TWICE A WEEK. EACH SESSION CONSISTED OF BREATHING EXERCISES, YOGA POSE PRACTICE, AND SUPINE MEDITATION/RELAXATION. THE CONTROL GROUP WAS INSTRUCTED NOT TO ENGAGE IN ANY YOGA PRACTICE AND TO MAINTAIN THEIR USUAL LEVEL OF PHYSICAL ACTIVITY DURING THE STUDY. OUTCOME MEASURES: PARTICIPANTS' HEART RATE VARIABILITY, PERCEIVED STRESS, DEPRESSIVE SYMPTOMS, AND STATE AND TRAIT ANXIETY WERE ASSESSED AT BASELINE (WEEK 0) AND AFTER THE INTERVENTION (WEEK 9). RESULTS: NO MEASURES OF HEART RATE VARIABILITY CHANGED SIGNIFICANTLY IN EITHER THE YOGA OR CONTROL GROUP AFTER INTERVENTION. STATE ANXIETY WAS REDUCED SIGNIFICANTLY IN THE YOGA GROUP BUT NOT IN THE CONTROL GROUP. NO SIGNIFICANT CHANGES WERE NOTED IN PERCEIVED STRESS, DEPRESSION, OR TRAIT ANXIETY IN EITHER GROUP. CONCLUSIONS: AN 8-WEEK YOGA PROGRAM WAS NOT SUFFICIENT TO IMPROVE HEART RATE VARIABILITY. HOWEVER, SUCH A PROGRAM APPEARS TO BE EFFECTIVE IN REDUCING STATE ANXIETY IN GENERALLY HEALTHY WOMEN. FUTURE RESEARCH SHOULD INVOLVE LONGER PERIODS OF YOGA TRAINING, INCLUDE HEART RATE VARIABILITY MEASURES BOTH AT REST AND DURING YOGA PRACTICE, AND ENROLL WOMEN WITH HIGHER LEVELS OF STRESS AND TRAIT ANXIETY.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
11 2822  43 YOGA V. HEALTH EDUCATION FOR ATTENTIONAL PROCESSES RELEVANT TO MAJOR DEPRESSIVE DISORDER. OBJECTIVES: RESEARCH HAS SHOWN THAT YOGA MAY BE AN EFFECTIVE ADJUNCTIVE TREATMENT FOR PERSISTENT DEPRESSION, THE BENEFITS OF WHICH MAY ACCUMULATE OVER TIME. THE OBJECTIVES OF THIS STUDY WERE TO EVALUATE THE FOLLOWING IN A SAMPLE OF PERSISTENTLY DEPRESSED INDIVIDUALS: WHETHER YOGA INCREASES MINDFULNESS AND WHETHER YOGA ATTENUATES RUMINATION. RUMINATION AND MINDFULNESS BOTH REPRESENT ATTENTIONAL PROCESSES RELEVANT FOR ONSET AND MAINTENANCE OF DEPRESSIVE EPISODES. METHODS: ONE-HUNDRED-TEN INDIVIDUALS WHO WERE PERSISTENTLY DEPRESSED DESPITE ONGOING USE OF PHARMACOLOGICAL TREATMENT WERE RECRUITED INTO AN RCT COMPARING YOGA WITH A HEALTH EDUCATION CLASS. MINDFULNESS AND RUMINATION WERE ASSESSED AT BASELINE AND ACROSS 3 TIME POINTS DURING THE TEN-WEEK INTERVENTION. RESULTS: FINDINGS DEMONSTRATE THAT, COMPARED TO HEALTH EDUCATION, YOGA WAS ASSOCIATED WITH HIGHER MEAN LEVELS OF THE OBSERVE FACET OF MINDFULNESS RELATIVE TO THE CONTROL GROUP DURING THE INTERVENTION PERIOD (P =.004, D =0.38), AND THAT YOGA WAS ASSOCIATED WITH A FASTER RATE OF INCREASE IN LEVELS OF ACTING WITH AWARENESS OVER THE INTERVENTION PERIOD (P= .03, F(2) =0.027). THERE WERE NO DIFFERENCES BETWEEN INTERVENTION GROUPS WITH RESPECT TO RUMINATION. CONCLUSIONS: RESULTS SUGGEST A SMALL EFFECT OF YOGA ON COMPONENTS OF MINDFULNESS DURING A 10-WEEK INTERVENTION PERIOD. PREVIOUS RESEARCH SUGGESTS THAT CONTINUED ASSESSMENT AFTER THE INITIAL 10 WEEKS MAY REVEAL CONTINUED IMPROVEMENT. FUTURE RESEARCH MAY ALSO EXAMINE MODERATORS OF THE IMPACT OF YOGA ON MINDFULNESS AND RUMINATION, INCLUDING CLINICAL FACTORS SUCH AS DEPRESSION SEVERITY OR DEPRESSION CHRONICITY, OR DEMOGRAPHIC FACTORS SUCH AS AGE.	2021	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
12  306  35 AN EVALUATION OF THE ABILITY TO VOLUNTARILY REDUCE THE HEART RATE AFTER A MONTH OF YOGA PRACTICE. THE STUDY AIMED AT DETERMINING WHETHER NOVICES TO YOGA WOULD BE ABLE TO REDUCE THEIR HEART RATE VOLUNTARILY AND WHETHER THE MAGNITUDE OF REDUCTION WOULD BE MORE AFTER 30 DAYS OF YOGA TRAINING. TWO GROUPS (YOGA AND CONTROL, N = 12 EACH) WERE ASSESSED ON DAY 1 AND ON DAY 30. DURING THE INTERVENING 30 DAYS, THE YOGA GROUP RECEIVED TRAINING IN YOGA TECHNIQUES WHILE THE CONTROL GROUP CARRIED ON WITH THEIR ROUTINE. AT EACH ASSESSMENT THE BASELINE HEART RATE WAS RECORDED FOR ONE MINUTE, THIS WAS FOLLOWED BY A SIX-MINUTE PERIOD DURING WHICH PARTICIPANTS WERE ASKED TO ATTEMPT TO VOLUNTARILY REDUCE THEIR HEART RATE, USING ANY STRATEGY. BOTH THE BASELINE HEART RATE AND THE LOWEST HEART RATE ACHIEVED VOLUNTARILY DURING THE SIX-MINUTE PERIOD WERE SIGNIFICANTLY LOWER IN THE YOGA GROUP ON DAY 30 COMPARED TO DAY 1 BY A GROUP AVERAGE OF 10.7 BEATS PER MINUTE (I.E., BPM) AND 6.8 BPM, RESPECTIVELY (P < .05, WILCOXON PAIRED SIGNED RANKS TEST). IN CONTRAST, THERE WAS NO SIGNIFICANT CHANGE IN EITHER THE BASELINE HEART RATE OR THE LOWEST HEART RATE ACHIEVED VOLUNTARILY IN THE CONTROL GROUP ON DAY 30 COMPARED TO DAY 1. THE RESULTS SUGGEST THAT YOGA TRAINING CAN ENABLE PRACTITIONERS TO USE THEIR OWN STRATEGIES TO REDUCE THE HEART RATE, WHICH HAS POSSIBLE THERAPEUTIC APPLICATIONS.	2004	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
13 1424  29 IMPROVEMENT IN PHYSIOLOGICAL AND PSYCHOLOGICAL PARAMETERS AFTER 6 MONTHS OF YOGA PRACTICE. YOGA IS BELIEVED TO HAVE BENEFICIAL EFFECTS ON COGNITION, ATTENUATION OF EMOTIONAL INTENSITY AND STRESS REDUCTION. PREVIOUS STUDIES WERE MAINLY PERFORMED ON EASTERN EXPERIENCED PRACTITIONERS OR UNHEALTHY SUBJECTS UNDERGOING CONCOMITANT CONVENTIONAL THERAPIES. FURTHER INVESTIGATION IS NEEDED ON THE EFFECTS OF YOGA PER SE, AS WELL AS ITS POSSIBLE PREVENTIVE BENEFITS ON HEALTHY SUBJECTS. WE INVESTIGATED THE EFFECTS OF YOGA ON MEMORY AND PSYCHOPHYSIOLOGICAL PARAMETERS RELATED TO STRESS, COMPARING YOGA PRACTICE AND CONVENTIONAL PHYSICAL EXERCISES IN HEALTHY MEN (PREVIOUSLY YOGA-NAIVE). MEMORY TESTS, SALIVARY CORTISOL LEVELS AND STRESS, ANXIETY, AND DEPRESSION INVENTORIES WERE ASSESSED BEFORE AND AFTER 6 MONTHS OF PRACTICE. YOGA PRACTITIONERS SHOWED IMPROVEMENT OF THE MEMORY PERFORMANCE, AS WELL AS IMPROVEMENTS IN PSYCHOPHYSIOLOGICAL PARAMETERS. THE PRESENT RESULTS SUGGEST THAT REGULAR YOGA PRACTICE CAN IMPROVE ASPECTS OF COGNITION AND QUALITY OF LIFE FOR HEALTHY INDIVIDUALS. AN INDIRECT INFLUENCE OF EMOTIONAL STATE ON COGNITIVE IMPROVEMENT PROMOTED BY YOGA PRACTICE CAN BE PROPOSED.	2012	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
14  743  37 EFFECT OF RESTORATIVE YOGA VS. STRETCHING ON DIURNAL CORTISOL DYNAMICS AND PSYCHOSOCIAL OUTCOMES IN INDIVIDUALS WITH THE METABOLIC SYNDROME: THE PRYSMS RANDOMIZED CONTROLLED TRIAL. PURPOSE: CHRONIC STIMULATION AND DYSREGULATION OF THE NEUROENDOCRINE SYSTEM BY STRESS MAY CAUSE METABOLIC ABNORMALITIES. WE ESTIMATED HOW MUCH CORTISOL AND PSYCHOSOCIAL OUTCOMES IMPROVED WITH A RESTORATIVE YOGA (RELAXATION) VERSUS A LOW IMPACT STRETCHING INTERVENTION FOR INDIVIDUALS WITH THE METABOLIC SYNDROME. METHODS: WE CONDUCTED A 1-YEAR MULTI-CENTER RANDOMIZED CONTROLLED TRIAL (6-MONTH INTERVENTION AND 6-MONTH MAINTENANCE PHASE) OF RESTORATIVE YOGA VS. STRETCHING. PARTICIPANTS COMPLETED SURVEYS TO ASSESS DEPRESSION, SOCIAL SUPPORT, POSITIVE AFFECT, AND STRESS AT BASELINE, 6 MONTHS AND 12 MONTHS. FOR EACH ASSESSMENT, WE COLLECTED SALIVA AT FOUR POINTS DAILY FOR THREE DAYS AND COLLECTED RESPONSE TO DEXAMETHASONE ON THE FOURTH DAY FOR ANALYSIS OF DIURNAL CORTISOL DYNAMICS. WE ANALYZED OUR DATA USING MULTIVARIATE REGRESSION MODELS, CONTROLLING FOR STUDY SITE, MEDICATIONS (ANTIDEPRESSANTS, HORMONE THERAPY), BODY MASS INDEX, AND BASELINE CORTISOL VALUES. RESULTS: PSYCHOSOCIAL OUTCOME MEASURES WERE AVAILABLE FOR 171 STUDY PARTICIPANTS AT BASELINE, 140 AT 6 MONTHS, AND 132 AT 1 YEAR. COMPLETE CORTISOL DATA WERE AVAILABLE FOR 136 OF 171 STUDY PARTICIPANTS (72 IN RESTORATIVE YOGA AND 64 IN STRETCHING) AND WERE ONLY AVAILABLE AT BASELINE AND 6 MONTHS. AT 6 MONTHS, THE STRETCHING GROUP HAD DECREASED CORTISOL AT WAKING AND BEDTIME COMPARED TO THE RESTORATIVE YOGA GROUP. THE PATTERN OF CHANGES IN STRESS MIRRORED THIS IMPROVEMENT, WITH THE STRETCHING GROUP SHOWING REDUCTIONS IN CHRONIC STRESS SEVERITY AND PERSEVERATIVE THOUGHTS ABOUT THEIR STRESS. PERCEIVED STRESS DECREASED BY 1.5 POINTS (-0.4; 3.3, P=0.11) AT 6 MONTHS, AND BY 2.0 POINTS (0.1; 3.9, P=0.04) AT 1 YEAR IN THE STRETCHING COMPARED TO RESTORATIVE YOGA GROUPS. POST HOC ANALYSES SUGGEST THAT IN THE STRETCHING GROUP ONLY, PERCEIVED INCREASES IN SOCIAL SUPPORT (PARTICULARLY FEELINGS OF BELONGING), BUT NOT CHANGES IN STRESS WERE RELATED TO IMPROVED CORTISOL DYNAMICS. CONCLUSIONS: WE FOUND SIGNIFICANT DECREASES IN SALIVARY CORTISOL, CHRONIC STRESS SEVERITY, AND STRESS PERCEPTION IN THE STRETCHING GROUP COMPARED TO THE RESTORATIVE YOGA GROUP. GROUP SUPPORT DURING THE INTERACTIVE STRETCH CLASSES MAY HAVE CONTRIBUTED TO THESE CHANGES.	2014	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
15 2665  40 YOGA IN CORRECTIONAL SETTINGS: A RANDOMIZED CONTROLLED STUDY. BACKGROUND: THE EFFECT OF YOGA IN THE REDUCTION OF DEPRESSIVE SYMPTOMS, ANXIETY, STRESS, ANGER AS WELL AS IN THE INCREASED ABILITY OF BEHAVIORAL CONTROL HAS BEEN SHOWN. THESE EFFECTS OF YOGA ARE HIGHLY RELEVANT FOR PRISON INMATES WHO OFTEN HAVE POOR MENTAL HEALTH AND LOW IMPULSE CONTROL. WHILE IT HAS BEEN SHOWN THAT YOGA AND MEDITATION CAN BE EFFECTIVE IN IMPROVING SUBJECTIVE WELL-BEING, MENTAL HEALTH, AND EXECUTIVE FUNCTIONING WITHIN PRISON POPULATIONS, ONLY A LIMITED NUMBER OF STUDIES HAVE PROVED THIS, USING RANDOMIZED CONTROLLED SETTINGS. METHODS: A TOTAL OF 152 PARTICIPANTS FROM NINE SWEDISH CORRECTIONAL FACILITIES WERE RANDOMLY ASSIGNED TO A 10-WEEK YOGA GROUP (ONE CLASS A WEEK; N = 77) OR A CONTROL GROUP (N = 75). BEFORE AND AFTER THE INTERVENTION PERIOD, PARTICIPANTS ANSWERED QUESTIONNAIRES MEASURING STRESS, AGGRESSION, AFFECTIVE STATES, SLEEP QUALITY, AND PSYCHOLOGICAL WELL-BEING AND COMPLETED A COMPUTERIZED TEST MEASURING ATTENTION AND IMPULSIVITY. RESULTS: AFTER THE INTERVENTION PERIOD, SIGNIFICANT IMPROVEMENTS WERE FOUND ON 13 OF THE 16 VARIABLES WITHIN THE YOGA GROUP (E.G., LESS PERCEIVED STRESS, BETTER SLEEP QUALITY, AN INCREASED PSYCHOLOGICAL AND EMOTIONAL WELL-BEING, LESS AGGRESSIVE, AND ANTISOCIAL BEHAVIOR) AND ON TWO WITHIN THE CONTROL GROUP. COMPARED TO THE CONTROL GROUP, YOGA CLASS PARTICIPANTS REPORTED SIGNIFICANTLY IMPROVED EMOTIONAL WELL-BEING AND LESS ANTISOCIAL BEHAVIOR AFTER 10 WEEKS OF YOGA. THEY ALSO SHOWED IMPROVED PERFORMANCE ON THE COMPUTERIZED TEST THAT MEASURES ATTENTION AND IMPULSE CONTROL. CONCLUSION: IT CAN BE CONCLUDED THAT THE YOGA PRACTICED IN SWEDISH CORRECTIONAL FACILITIES HAS POSITIVE EFFECTS ON INMATES' WELL-BEING AND ON CONSIDERABLE RISK FACTORS ASSOCIATED WITH RECIDIVISM, SUCH AS IMPULSIVITY AND ANTISOCIAL BEHAVIOR. ACCORDINGLY, THE RESULTS SHOW THAT YOGA PRACTICE CAN PLAY AN IMPORTANT PART IN THE REHABILITATION OF PRISON INMATES.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
16 2847  34 YOGA, MEDITATION AND MIND-BODY HEALTH: INCREASED BDNF, CORTISOL AWAKENING RESPONSE, AND ALTERED INFLAMMATORY MARKER EXPRESSION AFTER A 3-MONTH YOGA AND MEDITATION RETREAT. THIRTY-EIGHT INDIVIDUALS (MEAN AGE: 34.8 YEARS OLD) PARTICIPATING IN A 3-MONTH YOGA AND MEDITATION RETREAT WERE ASSESSED BEFORE AND AFTER THE INTERVENTION FOR PSYCHOMETRIC MEASURES, BRAIN DERIVED NEUROTROPHIC FACTOR (BDNF), CIRCADIAN SALIVARY CORTISOL LEVELS, AND PRO- AND ANTI-INFLAMMATORY CYTOKINES. PARTICIPATION IN THE RETREAT WAS FOUND TO BE ASSOCIATED WITH DECREASES IN SELF-REPORTED ANXIETY AND DEPRESSION AS WELL AS INCREASES IN MINDFULNESS. AS HYPOTHESIZED, INCREASES IN THE PLASMA LEVELS OF BDNF AND INCREASES IN THE MAGNITUDE OF THE CORTISOL AWAKENING RESPONSE (CAR) WERE ALSO OBSERVED. THE NORMALIZED CHANGE IN BDNF LEVELS WAS INVERSELY CORRELATED WITH BSI-18 ANXIETY SCORES AT BOTH THE PRE-RETREAT (R = 0.40, P < 0.05) AND POST-RETREAT (R = 0.52, P < 0.005) SUCH THAT THOSE WITH GREATER ANXIETY SCORES TENDED TO EXHIBIT SMALLER PRE- TO POST-RETREAT INCREASES IN PLASMA BDNF LEVELS. IN LINE WITH A HYPOTHESIZED DECREASE IN INFLAMMATORY PROCESSES RESULTING FROM THE YOGA AND MEDITATION PRACTICES, WE FOUND THAT THE PLASMA LEVEL OF THE ANTI-INFLAMMATORY CYTOKINE INTERLEUKIN-10 WAS INCREASED AND THE PRO-INFLAMMATORY CYTOKINE INTERLEUKIN-12 WAS REDUCED AFTER THE RETREAT. CONTRARY TO OUR INITIAL HYPOTHESES, PLASMA LEVELS OF OTHER PRO-INFLAMMATORY CYTOKINES, INCLUDING INTERFERON GAMMA (IFN-GAMMA), TUMOR NECROSIS FACTOR (TNF-ALPHA), INTERLEUKIN-1BETA (IL-1BETA), INTERLEUKIN-6 (IL-6), AND INTERLEUKIN-8 (IL-8) WERE INCREASED AFTER THE RETREAT. GIVEN EVIDENCE FROM PREVIOUS STUDIES OF THE POSITIVE EFFECTS OF MEDITATIVE PRACTICES ON MENTAL FITNESS, AUTONOMIC HOMEOSTASIS AND INFLAMMATORY STATUS, WE HYPOTHESIZE THAT THESE FINDINGS ARE RELATED TO THE MEDITATIVE PRACTICES THROUGHOUT THE RETREAT; HOWEVER, SOME OF THE OBSERVED CHANGES MAY ALSO BE RELATED TO OTHER ASPECTS OF THE RETREAT SUCH AS PHYSICAL EXERCISE-RELATED COMPONENTS OF THE YOGA PRACTICE AND DIET. WE HYPOTHESIZE THAT THE PATTERNS OF CHANGE OBSERVED HERE REFLECT MIND-BODY INTEGRATION AND WELL-BEING. THE INCREASED BDNF LEVELS OBSERVED IS A POTENTIAL MEDIATOR BETWEEN MEDITATIVE PRACTICES AND BRAIN HEALTH, THE INCREASED CAR IS LIKELY A REFLECTION OF INCREASED DYNAMIC PHYSIOLOGICAL AROUSAL, AND THE RELATIONSHIP OF THE DUAL ENHANCEMENT OF PRO- AND ANTI-INFLAMMATORY CYTOKINE CHANGES TO HEALTHY IMMUNOLOGIC FUNCTIONING IS DISCUSSED.	2017	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
17  951  31 EFFECTS OF A CLASSROOM-BASED YOGA INTERVENTION ON CORTISOL AND BEHAVIOR IN SECOND- AND THIRD-GRADE STUDENTS: A PILOT STUDY. THIS UNCONTROLLED PILOT STUDY EXAMINED THE EFFECTS OF A CLASSROOM-BASED YOGA INTERVENTION ON CORTISOL CONCENTRATIONS AND PERCEIVED BEHAVIOR IN CHILDREN. A 10-WEEK YOGA 4 CLASSROOMS INTERVENTION WAS IMPLEMENTED IN ONE SECOND-GRADE AND ONE THIRD-GRADE CLASSROOM. STUDENTS' SALIVARY CORTISOL RESPONSES WERE ASSESSED AT 3 TIME POINTS. CLASSROOM TEACHERS ALSO DOCUMENTED THEIR PERCEPTIONS OF THE EFFECTS OF THE INTERVENTION ON STUDENTS' COGNITIVE, SOCIAL, AND EMOTIONAL SKILLS. SECOND, BUT NOT THIRD, GRADERS SHOWED A SIGNIFICANT DECREASE IN BASELINE CORTISOL FROM BEFORE TO AFTER THE INTERVENTION. SECOND AND THIRD GRADERS BOTH SHOWED SIGNIFICANT DECREASES IN CORTISOL FROM BEFORE TO AFTER A COGNITIVE TASK, BUT NEITHER GRADE SHOWED ADDITIONAL DECREASES FROM BEFORE TO AFTER A SINGLE YOGA CLASS. THE SECOND-GRADE TEACHER PERCEIVED SIGNIFICANT IMPROVEMENTS IN SEVERAL ASPECTS HIS/HER STUDENTS' BEHAVIOR. THE THIRD-GRADE TEACHER PERCEIVED SOME, BUT FEWER, IMPROVEMENTS IN HIS/HER STUDENTS' BEHAVIOR. RESULTS SUGGEST THAT SCHOOL-BASED YOGA MAY BE ADVANTAGEOUS FOR STRESS MANAGEMENT AND BEHAVIOR.	2015	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
18  990  35 EFFECTS OF HATHA YOGA ON STRESS IN MIDDLE-AGED WOMEN. BACKGROUND: STRESS IS CONSIDERED A CRUCIAL TRIGGER FOR PHYSICAL AND MENTAL ILLNESS. STRESS REDUCTION IS A KNOWN LONG-TERM BENEFIT OF REGULAR HATHA YOGA PRACTICE. THE EFFICACY OF A SINGLE-SESSION HATHA YOGA CLASS ON STRESS REDUCTION IS NOT CURRENTLY KNOWN. PURPOSE: THIS STUDY INVESTIGATED THE COMPARATIVE EFFECTIVENESS OF A SINGLE 90-MINUTE HATHA YOGA CLASS AND AN 8-WEEK, 90-MINUTE-CLASS-PER-WEEK COURSE. METHODS: WE USED A QUASIEXPERIMENTAL DESIGN AND RECRUITED 63 FEMALE COMMUNITY RESIDENTS IN NEW TAIPEI CITY AGED 40-60 YEARS. PARTICIPANTS WERE RANDOMLY DIVIDED INTO AN EXPERIMENTAL GROUP (N = 30) AND A CONTROL GROUP (N = 33). THE EXPERIMENTAL GROUP RECEIVED THE 8-WEEK HATHA YOGA COURSE. THE CONTROL GROUP RECEIVED NO INTERVENTION. THE PERCEIVED STRESS SCALE (PSS) AND HEART RATE VARIABILITY (HRV) ASSESSED STRESS REDUCTION EFFECTIVENESS. CHI-SQUARE, INDEPENDENT T TEST, PAIRED T TEST, AND GENERALIZED ESTIMATING EQUATIONS WERE USED FOR DATA ANALYSIS. RESULTS: AFTER A SINGLE 90-MINUTE CLASS OF HATHA YOGA, EXPERIMENTAL GROUP PSS SCORES WERE SIGNIFICANTLY LESS THAN THOSE OF THE CONTROL GROUP (P = .001). ALTHOUGH EXPERIMENTAL GROUP HRV (LOW-FREQUENCY NORM AND HIGH-FREQUENCY NORM) HAD IMPROVED, THESE CHANGES WERE NOT STATISTICALLY SIGNIFICANT (P = .059). PSS SCORES FOR THE SINGLE 90-MINUTE CLASS AND 8-WEEK COURSE DID NOT SIGNIFICANTLY DIFFER (P = .157) AND HRV OF STATISTICS IS SIGNIFICANT (P = .005). GENERALIZED ESTIMATING EQUATIONS ANALYZED CHANGES IN THE EFFECTIVENESS OVER TIME OF STRESS REDUCTION (HRV AND PSS) AFTER THE HATHA YOGA INTERVENTION. RESULTS SHOWED THE POSTINTERVENTION HRV AND PSS OF THE EXPERIMENTAL GROUP DECREASED SIGNIFICANTLY (P < .001) MORE THAN THE CONTROL GROUP. CONCLUSIONS/IMPLICATIONS FOR PRACTICE: OUR FINDINGS SUPPORT THE POSITION THAT REGULAR, LONG-TERM PRACTICE OF HATHA YOGA PROVIDES CLEAR AND SIGNIFICANT HEALTH BENEFITS. PARTICIPATION IN A SINGLE 90-MINUTE HATHA YOGA CLASS CAN SIGNIFICANTLY REDUCE PERCEIVED STRESS. DOING HATHA YOGA REGULARLY CAN REDUCE PERCEIVED STRESS EVEN MORE SIGNIFICANTLY.	2013	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
19  984  40 EFFECTS OF HATHA YOGA AND AFRICAN DANCE ON PERCEIVED STRESS, AFFECT, AND SALIVARY CORTISOL. BACKGROUND: DANCE AND YOGA HAVE BEEN SHOWN TO PRODUCE IMPROVEMENTS IN PSYCHOLOGICAL WELL-BEING. PURPOSE: THE AIM OF THIS STUDY WAS TO EXAMINE SOME OF THE PSYCHOLOGICAL AND NEUROENDOCRINE RESPONSE TO THESE ACTIVITIES. METHODS: SIXTY-NINE HEALTHY COLLEGE STUDENTS PARTICIPATED IN ONE OF THREE 90-MIN CLASSES: AFRICAN DANCE (N = 21), HATHA YOGA (N= 18), OR A BIOLOGY LECTURE AS A CONTROL SESSION (N = 30). BEFORE AND AFTER EACH CONDITION PARTICIPANTS COMPLETED THE PERCEIVED STRESS SCALE (PSS), COMPLETED THE POSITIVE AFFECT AND NEGATIVE AFFECT SCHEDULE, AND PROVIDED A SALIVA SAMPLE FOR CORTISOL. RESULTS: THERE WERE SIGNIFICANT REDUCTIONS IN PSS AND NEGATIVE AFFECT (PS < .0001) AND TIME X TREATMENT INTERACTIONS (PS < .0001) SUCH THAT AFRICAN DANCE AND HATHA YOGA SHOWED SIGNIFICANT DECLINES, WHEREAS THERE WAS NO SIGNIFICANT CHANGE IN BIOLOGY LECTURE. THERE WAS NO SIGNIFICANT MAIN EFFECT FOR POSITIVE AFFECT (P = .53), HOWEVER THERE WAS A SIGNIFICANT INTERACTION EFFECT (P < .001) SUCH THAT POSITIVE AFFECT INCREASED IN AFRICAN DANCE, DECREASED IN BIOLOGY LECTURE, AND DID NOT CHANGE SIGNIFICANTLY IN HATHA YOGA. THERE WAS A SIGNIFICANT MAIN EFFECT FOR SALIVARY CORTISOL (P < .05) AND A SIGNIFICANT INTERACTION EFFECT (P < .0001) SUCH THAT CORTISOL INCREASED IN AFRICAN DANCE, DECREASED IN HATHA YOGA, AND DID NOT CHANGE IN BIOLOGY. CHANGES IN CORTISOL WERE NOT SIGNIFICANTLY RELATED TO CHANGES IN PSYCHOLOGICAL VARIABLES ACROSS TREATMENTS. THERE WAS 1 SIGNIFICANT INTERACTION EFFECT (P = .04) SUCH THAT CHANGE IN POSITIVE AFFECT AND CHANGE IN CORTISOL WERE NEGATIVELY CORRELATED IN HATHA YOGA BUT POSITIVELY CORRELATED IN AFRICA DANCE AND BIOLOGY. CONCLUSIONS: BOTH AFRICAN DANCE AND HATHA YOGA REDUCED PERCEIVED STRESS AND NEGATIVE AFFECT. CORTISOL INCREASED IN AFRICAN DANCE AND DECREASED IN HATHA YOGA. THEREFORE, EVEN WHEN THESE INTERVENTIONS PRODUCE SIMILAR POSITIVE PSYCHOLOGICAL EFFECTS, THE EFFECTS MAY BE VERY DIFFERENT ON PHYSIOLOGICAL STRESS PROCESSES. ONE FACTOR THAT MAY HAVE PARTICULAR SALIENCE IS THAT AMOUNT OF PHYSIOLOGICAL AROUSAL PRODUCED BY THE INTERVENTION.	2004	
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
20   33  33 A 10-WEEK YOGA PRACTICE HAS NO EFFECT ON COGNITION, BUT IMPROVES BALANCE AND MOTOR LEARNING BY ATTENUATING BRAIN-DERIVED NEUROTROPHIC FACTOR LEVELS IN OLDER ADULTS. DESPITE STUDIES INVESTIGATING THE EFFECT OF YOGA ON COGNITIVE AND MOTOR FUNCTIONING IN OLDER ADULTS, THE EFFECT ON DUAL-TASK PERFORMANCE AND MOTOR LEARNING AND THE SPECIFIC MECHANISMS UNDERLYING THE POSITIVE EFFECT OF YOGA REMAIN UNCLEAR. THUS, THE AIM OF THIS STUDY WAS TO INVESTIGATE THE EFFECTS OF YOGA ON COGNITION, BALANCE UNDER SINGLE- AND DUAL-TASK CONDITIONS, AND MOTOR LEARNING. THE POTENTIAL ROLE OF BRAIN-DERIVED NEUROTROPHIC FACTOR (BDNF) IN INDUCED IMPROVEMENT WAS ALSO EXPLORED. PARTICIPANTS AGED 60-79YEARS WERE RANDOMIZED TO EITHER A CONTROL GROUP (N=15) OR A YOGA GROUP (N=18) FOR A 10-WEEK PERIOD. THE YOGA GROUP RECEIVED 90-MIN DURATION YOGA CLASSES TWO TIMES PER WEEK. CHANGES IN COGNITION, BALANCE UNDER SINGLE- AND DUAL-TASK CONDITIONS, AND LEARNING FAST AND ACCURATE REACHING MOVEMENTS WERE ASSESSED. YOGA PRACTICE DECREASED (P<0.05) THE VELOCITY VECTOR OF THE CENTER OF PRESSURE UNDER SINGLE- AND DUAL-TASK CONDITIONS, WHEREAS NO CHANGES IN COGNITIVE PERFORMANCE WERE OBSERVED. ALTHOUGH REACTION AND MOVEMENT TIMES DURING LEARNING WERE DECREASED IN BOTH GROUPS (P<0.05), A FASTER REACTION TIME (P<0.05) AND SHORTER MOVEMENT TIME (P<0.05) WERE OBSERVED IN THE YOGA GROUP THAN IN THE CONTROL GROUP. SIGNIFICANT MODERATE RELATIONSHIPS (P<0.05) BETWEEN CHANGES IN BDNF LEVELS AND FUNCTIONAL IMPROVEMENTS WERE OBSERVED. THUS, 10WEEKS OF YOGA PRACTICE RESULTED IN IMPROVED BALANCE AND LEARNING IN THE SPEED-ACCURACY MOTOR TASK THAT WERE MEDIATED BY INCREASED BDNF LEVELS, BUT HAD NO IMPACT ON COGNITION IN OLDER ADULTS.	2020