1 1814 96 PROGRESSIVE INCREASE IN CRITICAL FLICKER FUSION FREQUENCY FOLLOWING YOGA TRAINING. THE CRITICAL FLICKER FUSION FREQUENCY (CFF) IS THE FREQUENCY AT WHICH A FLICKERING STIMULUS IS PERCEIVED TO BE STEADY, WITH HIGHER VALUES SUGGESTING GREATER PERCEPTUAL ACCURACY. THE CFF WAS MEASURED IN TWO AGE-MATCHED GROUPS OF HEALTHY MALE VOLUNTEERS WHOSE AGES RANGED FROM 25 TO 39 YEARS, WITH 18 SUBJECTS IN EACH GROUP. AFTER BASELINE ASSESSMENTS ONE GROUP (YOGA GROUP) RECEIVED YOGA TRAINING, WHILE THE OTHER GROUP (CONTROL GROUP) CARRIED ON WITH THEIR ROUTINE ACTIVITIES. YOGA PRACTICES INCLUDED ASANAS, PRANAYAMAS, KRIYAS, MEDITATION, DEVOTIONAL SESSIONS AND LECTURES ON THE THEORY OF YOGA. AFTER 10 DAYS NEITHER GROUP SHOWED A CHANGE IN CFF. HOWEVER, AT 20 AND AT 30 DAYS THE YOGA GROUP SHOWED SIGNIFICANT INCREASES IN CFF BY 11.1% AND 14.9%, RESPECTIVELY (TWO FACTOR ANOVA, TUKEY MULTIPLE COMPARISON TEST). THE CONTROL GROUP SHOWED NO CHANGE AT THE DAY 20 AND DAY 30 FOLLOWUP. 1997
2 883 28 EFFECT OF YOGA TRAINING ON MAZE LEARNING. THE PERFORMANCE IN A MAZE LEARNING TASK WAS ASSESSED IN ADULTS OF EITHER SEX (N = 31) BEFORE AND AFTER 30 DAYS OF YOGA TRAINING AND IN AN AGE AND GENDER MATCHED CONTROL GROUP OF SUBJECTS WHO DID NOT RECEIVE TRAINING IN YOGA. SUBJECTS WERE BLIND FOLDED AND USED THE DOMINANT HAND TO TRACE THE PATH IN A WOODEN PENCIL MAZE. AT EACH ASSESSMENT, SUBJECTS WERE GIVEN 5 TRIALS, WITHOUT A GAP BETWEEN THEM. PERFORMANCE WAS BASED ON THE TIME TAKEN TO COMPLETE THE MAZE AND THE NUMBER OF BLIND ALLEYS TAKEN. THE TIME AND ERROR SCORES OF TRIAL 1 WERE SIGNIFICANTLY LESS AFTER YOGA (TWO-FACTOR ANOVA, TUKEY TEST). REPEATING TRIALS SIGNIFICANTLY DECREASED TIME SCORES AT TRIAL 5 VERSUS TRIAL 1, FOR BOTH GROUPS ON DAY 1 AND FOR THE CONTROL GROUP ON DAY 30. HENCE THE YOGA GROUP SHOWED IMPROVED PERFORMANCE IN MAZE TRACING AT RETEST 30 DAYS LATER, WHICH MAY BE RELATED TO THIS GROUP BEING FASTER LEARNERS AND ALSO THE EFFECT OF YOGA ITSELF. YOGA TRAINING DID NOT INFLUENCE MAZE LEARNING, BASED ON THE PERFORMANCE IN 5 REPEAT TRIALS. 2000
3 2131 27 THE EFFECTS OF A 6-MONTH MODERATE-INTENSITY HATHA YOGA-BASED TRAINING PROGRAM ON HEALTH-RELATED FITNESS IN MIDDLE-AGED SEDENTARY WOMEN: A RANDOMIZED CONTROLLED STUDY. BACKGROUND: THERE IS PAUCITY OF DATA EXAMINING THE EFFECTIVENESS OF LONG-TERM HATHA YOGA-BASED (HY) PROGRAMS FOCUSED ON THE HEALTH-RELATED FITNESS (H-RF) OF ASYMPTOMATIC, SEDENTARY WOMEN. THE PURPOSE OF THIS STUDY WAS TO EXAMINE THE EFFECTS OF A 6-MONTH HY-BASED TRAINING PROGRAM ON H-RF COMPONENTS IN SEDENTARY MIDDLE-AGED WOMEN. METHODS: EIGHTY SEDENTARY WOMEN WERE RANDOMLY ASSIGNED INTO EITHER THE HY GROUP (HYG) (N.=42) OR THE CONTROL GROUP (CG) (N.=38). THE 6-MONTH HYG PROGRAM INVOLVED A PROGRESSIVE SERIES OF VINYASA FLOW POSES PERFORMED 3 TIMES/WEEK FOR 60 MINUTES (40 MINUTES WITHIN THE EXERCISE ZONE OF 60-75% HRMAX). THE CG PARTICIPANTS DID NOT UNDERGO ANY PHYSICAL TRAINING OR EDUCATION. HEALTH-RELATED FITNESS PARAMETERS INCLUDED MEASURES OF PRE- AND POST-TRAINING: BODY COMPOSITION, MUSCULAR STRENGTH AND MAXIMAL VOLUNTARY ISOMETRIC TORQUES OF ELBOW FLEXORS AND KNEE EXTENSORS, CARDIO-RESPIRATORY FITNESS, LOWER BACK AND HAMSTRING FLEXIBILITY AND A STATIC-DYNAMIC BALANCE. RESULTS: TWO-WAY MIXED DESIGN ANOVA REVEALED SIGNIFICANT MAIN EFFECTS FOR ALL THE INDICATORS OF H-RF. TUKEY POST-HOC TESTS CONFIRMED THAT THE HYG DEMONSTRATED SIGNIFICANT IMPROVEMENTS IN EVERY VARIABLE TESTED. EXAMPLES OF THE BENEFITS ACHIEVED INCLUDE (ALL P<.001): AN AVERAGE LOSS OF 1.03 KG AND A 4.82% DECREASE IN BODY FAT, 14.6% AND 13.1% GAINS IN ISOMETRIC STRENGTH OF THE KNEE EXTENSORS AND ELBOW FLEXORS RESPECTIVELY, AN INCREASE IN RELATIVE VO2MAX OF 6.1% (33.12+/-5.30 TO 35.14+/-4.82 ML/KG/MIN), A 4-CM OR 10.4% INCREASE IN THEIR MSAR, AND AN AVERAGE IMPROVED BALANCE INDEX OF 5.6 MM/S. REVERSELY, THE CG SHOWED NON-SIGNIFICANT CHANGES IN H-RF VARIABLES (ALL P>0.05; PERCENT RANGE FROM -1.4% TO 1.1%). CONCLUSIONS: BY PARTICIPATING IN A MODERATE-INTENSITY 6-MONTH HY-BASED TRAINING PROGRAM, MIDDLE-AGED WOMEN CAN SIGNIFICANTLY IMPROVE THEIR HR-F STATUS. THE APPLICATION OF PROGRESSIVE TARGET HEART RATE GOALS FACILITATED GREATER THAN EXPECTED IMPROVEMENTS IN CARDIO-RESPIRATORY FITNESS AND IMPROVEMENTS IN BODY COMPOSITION. 2020
4 659 30 EFFECT OF 11 MONTHS OF YOGA TRAINING ON CARDIORESPIRATORY RESPONSES DURING THE ACTUAL PRACTICE OF SURYA NAMASKAR. BACKGROUND: SURYA NAMASKAR (SN), A POPULAR TRADITIONAL INDIAN YOGIC PRACTICE, INCLUDES PRACTICING 12 PHYSICAL POSTURES WITH ALTERNATE FORWARD AND BACKWARD BENDING MOVEMENT OF THE BODY ALONG WITH DEEP BREATHING MANEUVERS. THE PRACTICE OF SN HAS BECOME POPULAR AMONG YOGA PRACTITIONERS AND OTHER FITNESS CONSCIOUS PEOPLE. THE LONG-TERM EFFECT OF PRACTICING SN AND OTHER YOGIC PRACTICES ON CARDIORESPIRATORY RESPONSES DURING SN ARE LACKING. AIM: THE PRESENT STUDY WAS CONDUCTED TO STUDY THE EFFECT OF YOGIC TRAINING ON VARIOUS CARDIORESPIRATORY RESPONSES DURING THE SN PRACTICE IN YOGA TRAINEES AFTER A TIME INTERVAL OF 3, 6, AND 11 MONTHS. MATERIALS AND METHODS: THE PRESENT STUDY WAS CONDUCTED ON 9 HEALTHY MALE ARMY SOLDIERS WHO UNDERWENT TRAINING IN VARIOUS YOGA POSTURES INCLUDING SN, MEDITATION, AND PRANAYAMA FOR 1 H DAILY FOR 11 MONTHS. FIRST, SECOND, AND THIRD PHASE OF THE STUDY WAS CONDUCTED IN THE LABORATORY AFTER COMPLETION OF 3, 6, AND 11 MONTHS OF THE YOGA TRAINING. THE PARTICIPANTS PERFORMED SN ALONG WITH OTHER YOGIC PRACTICES IN THE LABORATORY AS PER THEIR DAILY PRACTICE SCHEDULE. THE CARDIORESPIRATORY RESPONSES OF THE VOLUNTEERS WERE RECORDED DURING ACTUAL PRACTICE OF SN. STATISTICAL ANALYSIS: ONE-WAY REPEATED MEASURE ANOVA FOLLOWED BY TUKEY HSD. RESULTS: OXYGEN CONSUMPTION AND HEART RATE DURING ACTUAL PRACTICE OF SN WAS 0.794 +/- 0.252, 0.738 +/- 0.229, AND 0.560 +/- 0.165 L/MIN AND 92.1 +/- 11.6, 97.9 +/- 7.3 AND 87.4 +/- 9.2 BEATS/MIN RESPECTIVELY AT 1(ST) , 2(ND) , AND 3(RD) PHASE OF YOGA TRAINING. MINUTE VENTILATION AND TIDAL VOLUME ALSO REDUCED FROM 19.9 +/- 4.65 TO 17.8 +/- 4.41 L/MIN AND 1.091 +/- 0.021 TO 0.952 L/BREATH FROM 1(ST) PHASE TO 3(RD) PHASE OF YOGA TRAINING. HOWEVER, RESPIRATORY PARAMETERS LIKE BREATHING RATE (FR) DID NOT SHOW ANY REDUCTION ACROSS THE THREE PHASES. CONCLUSION: THE RESULTS OF THE PRESENT STUDY INDICATED THAT YOGIC TRAINING CAUSED CONDITIONING OF CARDIORESPIRATORY PARAMETERS EXCEPT FR, WHICH DID NOT REDUCE ACROSS THREE PHASES OF TRAINING. 2014
5 48 37 A COMBINATION OF FOCUSING AND DEFOCUSING THROUGH YOGA REDUCES OPTICAL ILLUSION MORE THAN FOCUSING ALONE. THE DEGREE OF OPTICAL ILLUSION WAS ASSESSED USING STANDARD MULLER-LYER LINES IN TWO GROUPS (YOGA AND CONTROL) OF THIRTY SUBJECTS EACH. ALL SUBJECTS WERE BETWEEN EIGHTEEN AND FORTY TWO YEARS OF AGE. THE DIFFERENCE BETWEEN THE READING AT WHICH THE LINES WERE ACTUALLY EQUAL AND THE READING AT WHICH THE SUBJECT FELT THEM TO BE EQUAL, WAS NOTED AS THE DEGREE OF ILLUSION ("DI"). EACH SUBJECT WAS ASSESSED AT THE BEGINNING AND END OF A MONTH. DURING THE MONTH THE YOGA GROUP RECEIVED TRAINING IN YOGA, WHILE THE CONTROL GROUP CARRIED ON WITH THEIR USUAL ROUTINE. AT THE END OF THE MONTH THE YOGA GROUP SHOWED A SIGNIFICANT (TWO FACTOR ANOVA, TUKEY TEST, P < .001) DECREASE IN THE "DI" (86%), WHEREAS THE CONTROL GROUP SHOWED NO CHANGE. THE IMPROVEMENT FOLLOWING YOGA COULD BE ATTRIBUTED TO THE COMBINATION OF FOCUSING AND DEFOCUSING INVOLVED IN YOGA PRACTICE, AS THESE FACTORS ARE KNOWN TO INFLUENCE THE "DI". PREVIOUS RESULTS WHICH MENTIONED A 79% DECREASE IN "DI" WITH FOCUSING ALONE, PROVIDED A COMPARISON. 1997
6 1653 34 MUSCLE POWER, DEXTERITY SKILL AND VISUAL PERCEPTION IN COMMUNITY HOME GIRLS TRAINED IN YOGA OR SPORTS AND IN REGULAR SCHOOL GIRLS. THE PRESENT STUDY WAS CONDUCTED TO COMPARE CRITICAL FLICKER FUSION FREQUENCY (CFF), DEGREE OF OPTICAL ILLUSION ("DI"), DEXTERITY SCORES, AND GRIP STRENGTH IN THREE GROUPS OF SUBJECTS, VIZ COMMUNITY HOME GIRLS WHO HAD LEARNED YOGA FOR 6 MONTHS (CHY), AGE-MATCHED COMMUNITY HOME GIRLS WHO HAD PHYSICAL ACTIVITY TRAINING FOR 6 MONTHS (CHP), AND GIRLS WHO WERE ATTENDING A REGULAR SCHOOL (SCH). THERE WERE EQUAL NUMBERS IN EACH GROUP FOR EACH OF THE 4 ASSESSMENT (RANGE 11 TO 30 SUBJECTS) AND AGE RANGE WAS 12 TO 16 YEARS OF AGE. THE CHP GROUP HAD SIGNIFICANTLY LOWER CFF AND "DI" WAS SIGNIFICANTLY HIGHER (ONE FACTOR ANOVA, T TEST FOR UNPAIRED DATA) IN THE CHP GROUP, BOTH COMPARED TO CHY AND SCH GROUPS. RIGHT HAND GRIP STRENGTH WAS ALSO SIGNIFICANTLY LESS IN THE CHP GROUP COMPARED TO SCH. THE RESULTS WERE EXPLAINED BY PREVIOUS REPORTS OF HIGH LEVELS OF ANXIETY AND AGGRESSION IN COMMUNITY-HOME GROUPS, WHICH IS KNOWN TO INFLUENCE THE FOUR PARAMETERS DESCRIBED HERE. THE BETTER PERFORMANCE OF THE CHY GROUP COMPARED TO CHP, SUGGESTED THAT YOGA PRACTICE HAS A BENEFICIAL EFFECT IN THESE SUBJECTS. 1997
7 1420 31 IMPROVED PERFORMANCE IN THE TOWER OF LONDON TEST FOLLOWING YOGA. TWENTY GIRLS BETWEEN 10 AND 13 YEARS OF AGE, STUDYING AT A RESIDENTIAL SCHOOL WERE RANDOMLY ASSIGNED TO TWO GROUPS. ONE GROUP PRACTICED YOGA FOR ONE HOUR FIFTEEN MINUTES PER DAY, 7 DAYS A WEEK, WHILE THE OTHER GROUP WAS GIVEN PHYSICAL TRAINING FOR THE SAME TIME. TIME FOR PLANNING AND FOR EXECUTION AND THE NUMBER OF MOVES REQUIRED TO COMPLETE THE TOWER OF LONDON TASK WERE ASSESSED FOR BOTH GROUPS AT THE BEGINNING AND END OF A MONTH. THESE THREE ASSESSMENTS WERE SEPARATELY TESTED IN INCREASINGLY COMPLEX TASKS REQUIRING 2-MOVES, 4-MOVES AND 5-MOVES. THE PRE-POST DATA WERE COMPARED USING THE WILCOXON PAIRED SIGNED RANKS TEST. THE YOGA GROUP SHOWED A SIGNIFICANT REDUCTION IN PLANNING TIME FOR BOTH 2-MOVES AND 4-MOVES TASKS (53.9 AND 59.1 PERCENT RESPECTIVELY), EXECUTION TIME IN BOTH 4-MOVES AND 5-MOVES TASKS (63.7 AND 60.3 PERCENT RESPECTIVELY), AND IN THE NUMBER OF MOVES IN THE 4-MOVES TASKS (20.9 PERCENT). THE PHYSICAL TRAINING GROUP SHOWED NO CHANGE. HENCE YOGA TRAINING FOR A MONTH REDUCED THE PLANNING AND EXECUTION TIME IN SIMPLE (2-MOVES) AS WELL AS COMPLEX TASKS (4, 5-MOVES) AND FACILITATED REACHING THE TARGET WITH A SMALLER NUMBER OF MOVES IN A COMPLEX TASK (4-MOVES). 2001
8 673 29 EFFECT OF A ONE-MONTH YOGA TRAINING PROGRAM ON PERFORMANCE IN A MIRROR-TRACING TASK. THE PERFORMANCE IN A MIRROR STAR TRACING TASK WAS ASSESSED IN TWO GROUPS OF VOLUNTEERS (YOGA AND CONTROL) WITH 26 PEOPLE IN EACH GROUP, AND AGE RANGE BETWEEN 18 AND 45 YEARS. THE STAR TO BE TRACED WAS SIX POINTED AND THE OUTLINE WAS MADE UP OF 60 CIRCLES (4 MM IN DIAMETER). AT THE END OF ONE MONTH THE YOGA GROUP SHOWED A SIGNIFICANT IMPROVEMENT IN TERMS OF AN INCREASE IN THE NUMBER OF CIRCLES CROSSED (P<0.001, WILCOXON PAIRED SIGNED RANKS TEST) FOR BOTH HANDS AND A DECREASE IN THE NUMBER OF CIRCLES LEFT OUT FOR THE RIGHT HAND (P<0.05). THE CONTROL GROUP SHOWED A SIGNIFICANT INCREASE IN NUMBER OF CIRCLES CROSSED FOR THE LEFT HAND ALONE (P<0.05) AT THE END OF A MONTH ATTRIBUTED TO RE-TEST. THE STUDY SUGGESTS THAT ONE MONTH OF YOGA IMPROVED REVERSAL ABILITY, EYE-HAND CO-ORDINATION, SPEED AND ACCURACY WHICH ARE NECESSARY FOR MIRROR STAR TRACING. 2006
9 1986 35 SPATIAL AND VERBAL MEMORY TEST SCORES FOLLOWING YOGA AND FINE ARTS CAMPS FOR SCHOOL CHILDREN. THE PERFORMANCE SCORES OF CHILDREN (AGED 11 TO 16 YEARS) IN VERBAL AND SPATIAL MEMORY TESTS WERE COMPARED FOR TWO GROUPS (N = 30, EACH), ONE ATTENDING A YOGA CAMP AND THE OTHER A FINE ARTS CAMP. BOTH GROUPS WERE ASSESSED ON THE MEMORY TASKS INITIALLY AND AFTER TEN DAYS OF THEIR RESPECTIVE INTERVENTIONS. A CONTROL GROUP (N = 30) WAS SIMILARLY STUDIED TO ASSESS THE TEST-RETEST EFFECT. AT THE FINAL ASSESSMENT THE YOGA GROUP SHOWED A SIGNIFICANT INCREASE OF 43% IN SPATIAL MEMORY SCORES (MULTIVARIATE ANALYSIS, TUKEY TEST), WHILE THE FINE ARTS AND CONTROL GROUPS SHOWED NO CHANGE. THE RESULTS SUGGEST THAT YOGA PRACTICE, INCLUDING PHYSICAL POSTURES, YOGA BREATHING, MEDITATION AND GUIDED RELAXATION IMPROVED DELAYED RECALL OF SPATIAL INFORMATION. 2004
10 2814 29 YOGA TRAINING AND MOTOR SPEED BASED ON A FINGER TAPPING TASK. A FINGER TAPPING TASK WAS USED TO ASSESS MOTOR SPEED (MS) OF BOTH HANDS IN 53 ADULTS AND 152 CHILDREN BEFORE AND AFTER YOGA TRAINING AND IN 38 ADULTS OF A NON-YOGA (CONTROL) GROUP. ALL SUBJECTS WERE RIGHT HAND DOMINANT. THE 30-SECOND TAPPING SPEED (TS) TEST WAS CONSIDERED AS THREE TIME INTERVALS, I.E. 0-10 SECOND (TS1), 10-20 SECONDS (TS2) AND 20-30 SECONDS (TS3). THERE WAS A SIGNIFICANT (STUDENT'S T-TEST) INCREASE IN ALL THREE TS VALUES FOLLOWING 10 DAYS OF YOGA IN CHILDREN AND 30 DAYS OF YOGA IN ADULTS. HOWEVER FOR BOTH GROUPS AT BASELINE AND FINAL ASSESSMENTS, TS2 AND TS3 WERE SIGNIFICANTLY LOWER THAN TS1. HENCE THE TS WAS INCREASED AFTER YOGA TRAINING DURING THE FIRST 10-SECONDS OF THE TEST BUT NOT DURING THE NEXT 20 SECONDS. THESE RESULTS SUGGEST AN INCREASE IN MOTOR SPEED FOR REPETITIVE FINGER MOVEMENTS FOLLOWING YOGA TRAINING, BUT NOT IN STRENGTH OR ENDURANCE, AS THE INCREASE WAS NOT SUSTAINED OVER 30 SEC. 1999
11 1706 16 PATTERN OF BREATHING AND VENTILATORY RESPONSE TO CO2 IN SUBJECTS PRACTICING HATHA-YOGA. WE STUDIED EIGHT BELGIAN SUBJECTS WELL ADVANCED IN THE PRACTICE OF HATHA-YOGA AND COMPARED THEM WITH EIGHT SEX-, AGE-, AND HEIGHT-MATCHED CONTROL SUBJECTS. PRACTICE OF YOGA (RANGE 4-12 YR) INVOLVES CONTROL OF POSTURE AND MANIPULATION OF BREATHING, INCLUDING SLOW NEAR-VITAL CAPACITY MANEUVERS ACCOMPANIED BY APNEA AT END INSPIRATION AND END EXPIRATION. AVERAGE VALUES FOR THE YOGA AND THE CONTROL GROUP (IN PARENTHESES) ARE AS FOLLOWS: VENTILATION (VE) 5.53 1 X MIN-1 (7.07); TIDAL VOLUME (VT), 1.03 LITERS (0.56); RATE OF BREATHING, 5.5 MIN-1 (13.4); END-TIDAL PCO2, 39.0 TORR (35.3). ALL DIFFERENCES ARE SIGNIFICANT (P LESS THAN 0.05). VENTILATORY RESPONSE TO CO2 (REBREATHING TECHNIQUE) WAS SIGNIFICANTLY LOWER IN THE YOGA GROUP (P LESS THAN 0.01). THE REGRESSION RELATING VE TO VT DURING REBREATHING OF CO2 WAS VE = 8.1 (VT - 0.23) FOR THE YOGA GROUP AND VE = 15.8 (VT - 0.16) FOR THE CONTROL GROUP (P LESS THAN 0.005). WE ATTRIBUTE THESE CHANGES TO CHRONIC MANIPULATION OF RESPIRATION. 1981
12 837 28 EFFECT OF YOGA ON PERFORMANCE AND PHYSICAL FITNESS IN CRICKET BOWLERS. CRICKET-BOWLING PERFORMANCE IS KNOWN TO BE INFLUENCED BY SPEED OF BALL RELEASE AND ACCURACY. CURRENTLY, TRAINING SESSIONS TYPICALLY INVOLVE FIELDING-SPECIFIC DRILLS AND CONDITIONING EXERCISES. SCIENTIFIC EVIDENCE FOR INCLUSION OF A COMPREHENSIVE YOGA INTERVENTION IN DAILY TRAINING AND EXERCISE SESSIONS REMAINS UNEXPLORED. THE PRESENT STUDY EXPLORED THE EFFECT OF YOGA ON BOWLING PERFORMANCE AND PHYSICAL FITNESS IN CRICKET BOWLERS. SPORTS FITNESS TESTING AND TRAINING WERE CONDUCTED AMONG 60 NON-ELITE RECREATIONAL-CLUB MALE CRICKET PLAYERS AGED 13-25 YEARS. CRICKET-BOWLING SPEED WAS E VALUATED USING A SPEED RADAR GUN, ACCURACY WITH A TEST DEVELOPED BY PORTUS ET AL., CARDIORESPIRATORY ENDURANCE USING THE YO-YO INTERMITTENT RECOVERY TEST, LOWER-EXTREMITY AND TRUNK STRENGTH USING A BACK-LEG DYNAMOMETER, UPPER-LIMB POWER USING A MEDICINE BALL-THROW TEST, POWER USING A VERTICAL-JUMP TEST, AND FLEXIBILITY USING A SIT-AND-REACH TEST. IN ADDITION TO BOWLING PRACTICE, THE YOGA INTERVENTION GROUP (N = 30) PERFORMED PRANAYAMA AND STANDING AND PRONE ASANA, WHEREAS THE CONTROL GROUP (N = 30) PRACTICED CONVENTIONAL CONDITIONING EXERCISES, FOR 45 MINUTES/DAY, THREE TIMES A WEEK, FOR 12 WEEKS. IMPROVEMENT IN BOWLING SPEED, ACCURACY, CARDIORESPIRATORY ENDURANCE, MUSCLE STRENGTH, AND FLEXIBILITY WERE COMPARABLE BETWEEN THE TWO GROUPS. STATISTICALLY SIGNIFICANT IMPROVEMENTS IN BASELINE SCORES IN BOWLING SPEED, ACCURACY, CARDIORESPIRATORY ENDURANCE, MUSCLE FLEXIBILITY, STRENGTH, AND POWER WERE COMPARABLE BETWEEN THE TWO GROUPS OF NON-ELITE MALE CRICKET PLAYERS. BOWLING SPEED IMPROVED BY 6.52% IN THE YOGA GROUP AND BY 5.18% IN THE CONTROL GROUP. BOWLING ACCURACY IMPROVED BY 35.40% IN THE YOGA GROUP AND BY 31.29% IN THE CONTROL GROUP. ADDITIONAL RESEARCH ON LONG-DURATION INTERVENTION IN ELITE PLAYERS MAY HELP TO ESTABLISH THE ROLE OF YOGA IN CONVENTIONAL CRICKET-BOWLING TRAINING. 2021
13 885 21 EFFECT OF YOGA TRAINING ON REACTION TIME, RESPIRATORY ENDURANCE AND MUSCLE STRENGTH. THERE IS EVIDENCE THAT THE PRACTICE OF YOGA IMPROVES PHYSICAL AND MENTAL PERFORMANCE. THE PRESENT INVESTIGATION WAS UNDERTAKEN TO STUDY THE EFFECT OF YOGA TRAINING ON VISUAL AND AUDITORY REACTION TIMES (RTS), MAXIMUM EXPIRATORY PRESSURE (MEP), MAXIMUM INSPIRATORY PRESSURE (MIP), 40 MMHG TEST, BREATH HOLDING TIME AFTER EXPIRATION (BHTEXP), BREATH HOLDING TIME AFTER INSPIRATION (BHTINSP), AND HAND GRIP STRENGTH (HGS). TWENTY SEVEN STUDENT VOLUNTEERS WERE GIVEN YOGA TRAINING FOR 12 WEEKS. THERE WAS A SIGNIFICANT (P < 0.001) DECREASE IN VISUAL RT (FROM 270.0 +/- 6.20 (SE) TO 224.81 +/- 5.76 MS) AS WELL AS AUDITORY RT (FROM 194.18 +/- 6.00 TO 157.33 +/- 4.85 MS). MEP INCREASED FROM 92.61 +/- 9.04 TO 126.46 +/- 10.75 MMHG, WHILE MIP INCREASED FROM 72.23 +/- 6.45 TO 90.92 +/- 6.03 MMHG, BOTH THESE CHANGES BEING STATISTICALLY SIGNIFICANT (P < 0.05). 40 MMHG TEST AND HGS INCREASED SIGNIFICANTLY (P < 0.001) FROM 36.57 +/- 2.04 TO 53.36 +/- 3.95 S AND 13.78 +/- 0.58 TO 16.67 +/- 0.49 KG RESPECTIVELY. BHTEXP INCREASED FROM 32.15 +/- 1.41 TO 44.53 +/- 3.78S (P < 0.01) AND BHTINSP INCREASED FROM 63.69 +/- 5.38 TO 89.07 +/- 9.61 S (P < 0.05). OUR RESULTS SHOW THAT YOGA PRACTICE FOR 12 WEEKS RESULTS IN SIGNIFICANT REDUCTION IN VISUAL AND AUDITORY RTS AND SIGNIFICANT INCREASE IN RESPIRATORY PRESSURES, BREATH HOLDING TIMES AND HGS. 1992
14 1354 27 IMMEDIATE EFFECT OF THREE YOGA BREATHING TECHNIQUES ON PERFORMANCE ON A LETTER-CANCELLATION TASK. THE EFFECTS OF THREE YOGA BREATHING PRACTICES WERE EVALUATED ON PERFORMANCE ON A LETTER-CANCELLATION TASK WHICH IS A LEFT-HEMISPHERE DOMINANT TASK. THE THREE YOGA BREATHING PRACTICES (RIGHT, LEFT, AND ALTERNATE NOSTRIL BREATHING) WERE SELECTED BECAUSE UNILATERAL FORCED NOSTRIL BREATHING STIMULATES THE CONTRALATERAL HEMISPHERE. THERE WERE 20 MALE VOLUNTEERS WHOSE AGES RANGED FROM 20 TO 45 YEARS (M AGE=28.4 YR., SD=5.7). ALL SUBJECTS WERE ASSESSED BEFORE AND AFTER FOUR SESSIONS, I.E., RIGHT NOSTRIL YOGA BREATHING, LEFT NOSTRIL YOGA BREATHING, ALTERNATE NOSTRIL YOGA BREATHING, AND BREATH AWARENESS AS A CONTROL. THE LETTER-CANCELLATION TASK SCORES WERE SIGNIFICANTLY IMPROVED, I.E., THERE WERE FEWER ERRORS FOLLOWING RIGHT AND ALTERNATE NOSTRIL YOGA BREATHING (WILCOXON PAIRED SIGNED-RANKS TEST). THE IMPROVED PERFORMANCE MAY BE RELATED TO THE ENHANCEMENT OF CONTRALATERAL HEMISPHERE FUNCTION FOUND WITH SELECTIVE NOSTRIL BREATHING. 2007
15 898 20 EFFECT OF YOGASANAS ON THE VISUAL AND AUDITORY REACTION TIME. VISUAL AND AUDITORY REACTION TIME (VRT, ART) WAS STUDIED IN 83 HEALTHY MALE SUBJECTS OF 30-40 YEARS OF AGE WHO HAD NEVER PRACTICED YOGASANAS BEFORE. THESE SUBJECTS WERE DIVIDED INTO TWO GROUPS VIZ. GROUP A WHOSE VRT AND ART WAS DETERMINED AFTER 1 HR. YOGASANAS AND GROUP B WHOSE ART AND VRT WAS DETERMINED AFTER 6 WEEKS YOGASANAS TRAINING PROGRAMME. VRT AND ART SHOWED A SIGNIFICANT REDUCTION IN GROUP A (P LESS THAN .05) AND GROUP B (P LESS THAN .001). 1989
16 1693 22 OXYGEN CONSUMPTION DURING VINIYOGA PRACTICE IN ADULTS. CONTEXT: THE PURPOSE OF THIS STUDY WAS TO MEASURE THE OXYGEN CONSUMPTION (VO2) DURING VINIYOGA YOGA MOVEMENTS (ASANAS) AND TO COMPARE VO2 WALKING AMONG ADULTS. METHODS: YOGA PRACTITIONERS (N = 10) WERE RECRUITED TO MEASURE VO2 WHILE AT REST (30 MIN), PRACTICING YOGA (16 MOVEMENTS WITH DIFFERENT VARIATIONS), AND TREADMILL WALKING AT 2 MPH (10 MIN) AND 3 MPH (10 MIN). VO2 WAS MEASURED USING A WHOLE-ROOM INDIRECT CALORIMETRY. EACH YOGA MOVEMENT WAS CATEGORIZED BY BODY ORIENTATION AS STANDING, LYING, AND SITTING. THE DIFFERENCES IN VO2 BETWEEN YOGA AND WALKING WERE EXAMINED USING PEARSON'S CORRELATIONS. DIFFERENCES IN VO2 BETWEEN POSES (STANDING, SITTING, AND LYING) WERE EXAMINED USING LINEAR REGRESSION MODELS. VO2. RESULTS: MEAN YOGA-VO2 FOR THE ENTIRE YOGA SESSION WAS 3.7 (STANDARD DEVIATION [SD] 0.43, RANGE: 4.4-8.9) ML/KG/MIN. YOGA-VO2 VARIED BY BODY ORIENTATION: STANDING = 7.5 (SD = 1.5) ML/KG/MIN, LYING = 5.3 (SD = 1.0) ML/KG/MIN, AND SITTING = 5.4 (SD = 1.1) ML/KG/MIN. AFTER ADJUSTING FOR BODY MASS, FREQUENCY OF YOGA PRACTICE, AND RESTING ENERGY EXPENDITURE, FEMALE GENDER WAS NEGATIVELY ASSOCIATED WITH MEAN YOGA VO2 FOR STANDING (B = -112.19, P < 0.05), LYING (B = -141.87, P < 0.05), AND SITTING (B = -129.96, P < 0.05). MEAN VO2 FOR WALKING 2 MPH WAS COMPARABLE WITH SITTING (R = 0.836, P < 0.05) AND LYING (R = 0.735, P < 0.05) WHEREAS WALKING AT 3 MPH WAS COMPARABLE WITH STANDING (R = 0.718, P < 0.05) AND SITTING (R = 0.760, P < 0.05). CONCLUSION: WE CONCLUDE THAT VO2 DURING YOGA PRACTICE IS COMPARABLE TO VO2 DURING SLOW TREADMILL WALKING AND MAY VARY BASED ON GENDER AND BODY ORIENTATION. 2018
17 1728 23 PERFORMANCE ON PSYCHOMOTOR TASKS FOLLOWING TWO YOGA-BASED RELAXATION TECHNIQUES. PREVIOUSLY CYCLIC MEDITATION AND SUPINE REST HAVE BEEN SHOWN TO IMPROVE PERFORMANCE IN A LETTER CANCELLATION TASK REQUIRING ATTENTION, VISUAL SCANNING, AND MOTOR SPEED. THE PRESENT STUDY ASSESSED THE PERFORMANCE IN 57 VOLUNTEERS (ALL MALE, M AGE = 26.5 YR., SD = 4.6) IN THREE TASKS, VIZ., A DIGIT-LETTER SUBSTITUTION TASK (DLST), A LETTER-COPYING TASK, AND A CIRCLE-DOTTING TASK. THE DLST ASSESSED ATTENTION AND SPEED OF INFORMATION PROCESSING, WHILE THE OTHER 2 TESTS ASSESSED MOTOR SPEED. EACH PARTICIPANT WAS ASSESSED BEFORE AND AFTER THREE TYPES OF SESSIONS: CYCLIC MEDITATION, SUPINE REST, AND CONTROL (NO INTERVENTION). DLST SCORES AND SCORES FOR LETTER-COPYING AND CIRCLE-DOTTING TASKS IMPROVED SIGNIFICANTLY AFTER CYCLIC MEDITATION; THE SAME SCORES ALSO IMPROVED AFTER SUPINE REST. THERE WAS NO CHANGE AFTER THE NO-INTERVENTION/CONTROL SESSION. FROM THE RESULTS IT WAS DIFFICULT TO CONCLUDE WHETHER IMPROVED DLST SCORES AFTER CYCLIC MEDITATION WERE DUE TO BETTER INFORMATION PROCESSING SPEED OR IMPROVED MOTOR SPEED. 2009
18 887 14 EFFECT OF YOGA TYPE BREATHING ON HEART RATE AND CARDIAC AXIS OF NORMAL SUBJECTS. EFFECT OF INSPIRATORY AND EXPIRATORY PHASES OF NORMAL QUIET BREATHING, DEEP BREATHING AND SAVITRI PRANAYAM TYPE BREATHING ON HEART RATE AND MEAN VENTRICULAR QRS AXIS WAS INVESTIGATED IN YOUNG, HEALTHY UNTRAINED SUBJECTS. PRANAYAM TYPE BREATHING PRODUCED SIGNIFICANT CARDIOACCELERATION AND INCREASE IN QRS AXIS DURING THE INSPIRATORY PHASE AS COMPARED TO EUPNEA. ON THE OTHER HAND, EXPIRATORY EFFORT DURING PRANAYAM TYPE BREATHING DID NOT PRODUCE ANY SIGNIFICANT CHANGE IN HEART RATE OR QRS AXIS. THE CHANGES IN HEART RATE AND QRS AXIS DURING THE INSPIRATORY AND EXPIRATORY PHASES OF PRANAYAM TYPE BREATHING WERE SIMILAR TO THE CHANGES OBSERVED DURING THE CORRESPONDING PHASES OF DEEP BREATHING. 1986
19 821 28 EFFECT OF YOGA ON EXERCISE TOLERANCE IN NORMAL HEALTHY VOLUNTEERS. TWELVE NORMAL HEALTHY VOLUNTEERS (6 MALES AND 6 FEMALES) UNDERGOING YOGA TRAINING FOR 90 DAYS WERE STUDIED FOR THE EFFECT OF YOGA ON EXERCISE TOLERANCE. THEIR AGES RANGED FROM 18 TO 28 YEARS. THE VOLUNTEERS WERE TAUGHT ONLY PRANAYAMA FOR THE FIRST 20 DAYS AND LATER ON YOGIC ASANAS WERE ADDED. SUB-MAXIMAL EXERCISE TOLERANCE TEST WAS DONE ON A MOTORIZED TREADMILL BY USING BALKE'S MODIFIED PROTOCOL, INITIALLY, AFTER 20 DAYS (PHASE-I) AND AFTER 90 DAYS OF YOGA TRAINING (PHASE-II). PYRUVATE AND LACTATE IN VENOUS BLOOD AND BLOOD GASES IN CAPILLARY BLOOD WERE ESTIMATED IMMEDIATELY BEFORE AND AFTER THE EXERCISE. MINUTE VENTILATION AND OXYGEN CONSUMPTION WERE ESTIMATED BEFORE AND DURING THE TEST. POST EXERCISE BLOOD LACTATE WAS ELEVATED SIGNIFICANTLY DURING INITIAL AND PHASE-I, BUT NOT IN PHASE-II. THERE WAS SIGNIFICANT REDUCTION OF MINUTE VENTILATION AND OXYGEN CONSUMPTION ONLY IN MALES IN PHASE-I AND II AT THE TIME WHEN THE VOLUNTEERS REACHED THEIR 80% OF THE PREDICTED HEART RATE. FEMALE VOLUNTEERS WERE ABLE TO GO TO HIGHER LOADS OF EXERCISE IN PHASE-I AND II. 1986
20 2510 33 YOGA BREATHING THROUGH A PARTICULAR NOSTRIL INCREASES SPATIAL MEMORY SCORES WITHOUT LATERALIZED EFFECTS. UNINOSTRIL BREATHING FACILITATES THE PERFORMANCE ON SPATIAL AND VERBAL COGNITIVE TASKS, SAID TO BE RIGHT AND LEFT BRAIN FUNCTIONS, RESPECTIVELY. SINCE HEMISPHERIC MEMORY FUNCTIONS ARE ALSO KNOWN TO BE LATERALIZED, THE PRESENT STUDY ASSESSED THE EFFECTS OF UNINOSTRIL BREATHING ON THE PERFORMANCE IN VERBAL AND SPATIAL MEMORY TESTS. SCHOOL CHILDREN (N = 108 WHOSE AGES RANGED FROM 10 TO 17 YEARS) WERE RANDOMLY ASSIGNED TO FOUR GROUPS. EACH GROUP PRACTICED A SPECIFIC YOGA BREATHING TECHNIQUE: (I) RIGHT NOSTRIL BREATHING, (II) LEFT NOSTRIL BREATHING, (III) ALTERNATE NOSTRIL BREATHING, OR (IV) BREATH AWARENESS WITHOUT MANIPULATION OF NOSTRILS. THESE TECHNIQUES WERE PRACTICED FOR 10 DAYS. VERBAL AND SPATIAL MEMORY WAS ASSESSED INITIALLY AND AFTER 10 DAYS. AN AGE-MATCHED CONTROL GROUP OF 27 WERE SIMILARLY ASSESSED. ALL 4 TRAINED GROUPS SHOWED A SIGNIFICANT INCREASE IN SPATIAL TEST SCORES AT RETEST, BUT THE CONTROL GROUP SHOWED NO CHANGE. AVERAGE INCREASE IN SPATIAL MEMORY SCORES FOR THE TRAINED GROUPS WAS 84%. IT APPEARS YOGA BREATHING INCREASES SPATIAL RATHER THAN VERBAL SCORES, WITHOUT A LATERALIZED EFFECT. 1997