1 1321 107 HEMISPHERE SPECIFIC EEG RELATED TO ALTERNATE NOSTRIL YOGA BREATHING. BACKGROUND: PREVIOUSLY, FORCED UNILATERAL NOSTRIL BREATHING WAS ASSOCIATED WITH IPSILATERAL, OR CONTRALATERAL CEREBRAL HEMISPHERE CHANGES, OR NO CHANGE. HENCE IT WAS INCONCLUSIVE. THE PRESENT STUDY WAS CONDUCTED ON 13 NORMAL HEALTHY PARTICIPANTS TO DETERMINE THE EFFECTS OF ALTERNATE NOSTRIL YOGA BREATHING ON (A) CEREBRAL HEMISPHERE ASYMMETRY, AND (B) CHANGES IN THE STANDARD EEG BANDS. METHODS: PARTICIPANTS WERE RANDOMLY ALLOCATED TO THREE SESSIONS (A) ALTERNATE NOSTRIL YOGA BREATHING (ANYB), (B) BREATH AWARENESS AND (C) QUIET SITTING, ON SEPARATE DAYS. EEG WAS RECORDED FROM BILATERALLY SYMMETRICAL SITES (FP1, FP2, C3, C4, O1 AND O2). ALL SITES WERE REFERENCED TO THE IPSILATERAL EAR LOBE. RESULTS: THERE WAS NO CHANGE IN CEREBRAL HEMISPHERE SYMMETRY. THE RELATIVE POWER IN THE THETA BAND WAS DECREASED DURING ALTERNATE NOSTRIL YOGA BREATHING (ANYB) AND THE BETA AMPLITUDE WAS LOWER AFTER ANYB. DURING QUIET SITTING THE RELATIVE POWER IN THE BETA BAND INCREASED, WHILE THE AMPLITUDE OF THE ALPHA BAND REDUCED. CONCLUSION: THE RESULTS SUGGEST THAT ANYB WAS ASSOCIATED WITH GREATER CALMNESS, WHEREAS QUIET SITTING WITHOUT SPECIFIC DIRECTIONS WAS ASSOCIATED WITH AROUSAL. THE RESULTS IMPLY A POSSIBLE USE OF ANYB FOR STRESS AND ANXIETY REDUCTION. 2017 2 1909 36 RIGHT UNINOSTRIL YOGA BREATHING INFLUENCES IPSILATERAL COMPONENTS OF MIDDLE LATENCY AUDITORY EVOKED POTENTIALS. A PREVIOUS REPORT DESCRIBED SELECTIVE ELECTRICAL ACTIVITY OF THE CEREBRAL HEMISPHERES WITH UNINOSTRIL BREATHING. IN THE PRESENT STUDY, MIDDLE LATENCY AUDITORY EVOKED POTENTIALS (MLAEPS) WERE RECORDED FROM SYMMETRICAL SCALP SITES DURING THE PRACTICE OF UNINOSTRIL YOGA BREATHING. THERE WERE TWO SESSIONS (40 MIN EACH) OF RIGHT NOSTRIL YOGA BREATHING (RNB) AND OF BREATH AWARENESS (BAW), WITH (I) 'BEFORE', (II) TEST (EITHER RNB OR BAW) AND (III) 'AFTER' PERIODS. THE PARTICIPANTS WERE 14 MALE VOLUNTEERS AGED BETWEEN 18 AND 33 YEARS, AND THE SETTING WAS A YOGA CENTRE. MLAEPS WERE RECORDED FROM SYMMETRICAL SCALP SITES (C4 AND C3). DURING RNB, THE PEAK AMPLITUDES OF TWO NEGATIVE COMPONENTS (VIZ. NA WAVE AND NB WAVE) WERE SIGNIFICANTLY INCREASED ON THE RIGHT SIDE. INCREASED PEAK AMPLITUDES OF NA AND NB WAVES SUGGESTED THAT RNB INCREASED THE NUMBER OF NEURONS RECRUITED ON THE RIGHT SIDE, SUGGESTING A POSSIBLE APPLICATION OF RNB IN CERTAIN PSYCHIATRIC DISORDERS WITH CEREBRAL HEMISPHERIC IMBALANCE. 2004 3 770 34 EFFECT OF UNINOSTRIL YOGA BREATHING ON BRAIN HEMODYNAMICS: A FUNCTIONAL NEAR-INFRARED SPECTROSCOPY STUDY. OBJECTIVES: TO MEASURE THE EFFECT OF THE RIGHT AND LEFT NOSTRIL YOGA BREATHING ON FRONTAL HEMODYNAMIC RESPONSES IN 32 RIGHT HANDED HEALTHY MALE SUBJECTS WITHIN THE AGE RANGE OF 18-35 YEARS (23.75 +/- 4.14 YEARS). MATERIALS AND METHODS: EACH SUBJECT PRACTICED RIGHT NOSTRIL YOGA BREATHING (RNYB), LEFT NOSTRIL YOGA BREATHING (LNYB) OR BREATH AWARENESS (BA) (AS CONTROL) FOR 10 MIN AT THE SAME TIME OF THE DAY FOR THREE CONSECUTIVE DAYS, RESPECTIVELY. THE SEQUENCE OF INTERVENTION WAS ASSIGNED RANDOMLY. THE FRONTAL HEMODYNAMIC RESPONSE IN TERMS OF CHANGES IN THE OXYGENATED HEMOGLOBIN (OXYHB), DEOXYGENATED HEMOGLOBIN (DEOXYHB), AND TOTAL HEMOGLOBIN (TOTALHB OR BLOOD VOLUME) CONCENTRATION WAS TAPPED FOR 5 MIN BEFORE (PRE) AND 10 MIN DURING THE BREATHING PRACTICES USING A 16 CHANNEL FUNCTIONAL NEAR-INFRARED SYSTEM (FNIR100-ACK-W, BIOPAC SYSTEMS, INC., U.S.A.). AVERAGE OF THE EIGHT CHANNELS ON EACH SIDE (RIGHT AND LEFT FRONTALS) WAS OBTAINED FOR THE TWO SESSIONS (PRE AND DURING). DATA WAS ANALYZED USING SPSS VERSION 10.0 THROUGH PAIRED AND INDEPENDENT SAMPLES T-TEST. RESULTS: WITHIN GROUP COMPARISON SHOWED THAT DURING RNYB, OXYHB LEVELS INCREASED SIGNIFICANTLY IN THE LEFT PREFRONTAL CORTEX (PFC) AS COMPARED TO THE BASELINE (P = 0.026). LNYB SHOWED A TREND TOWARDS SIGNIFICANCE FOR REDUCTION IN OXYHB IN THE RIGHT HEMISPHERE (P = 0.057). WHEREAS BA CAUSED SIGNIFICANT REDUCTION IN DEOXYHB (P = 0.023) IN THE LEFT HEMISPHERE. BETWEEN GROUPS COMPARISON REVEALED THAT OXYHB AND BLOOD VOLUME IN THE LEFT PFC INCREASED SIGNIFICANTLY DURING RNYB AS COMPARED TO BA (OXYHB: P =0.012; TOTALHB: P =0.017) AND LNYB (OXYHB: P =0.024; TOTALHB: P =0.034). CONCLUSION: RNYB INCREASED OXYGENATION AND BLOOD VOLUME IN THE LEFT PFC AS COMPARED TO BA AND LNYB. THIS SUPPORTS THE RELATIONSHIP BETWEEN NASAL CYCLE AND ULTRADIAN RHYTHM OF CEREBRAL DOMINANCE AND SUGGESTS A POSSIBLE APPLICATION OF UNINOSTRIL YOGA BREATHING IN THE MANAGEMENT OF PSYCHOPATHOLOGICAL STATES WHICH SHOW LATERALIZED CEREBRAL DYSFUNCTIONS. 2016 4 2511 52 YOGA BREATHING THROUGH A PARTICULAR NOSTRIL IS ASSOCIATED WITH CONTRALATERAL EVENT-RELATED POTENTIAL CHANGES. BACKGROUND: IN EARLIER STUDIES UNINOSTRIL YOGA BREATHING WAS SHOWN TO INFLUENCE THE ACTIVITY OF THE CEREBRAL HEMISPHERES DIFFERENTLY, BASED ON (I) AUDITORY EVOKED POTENTIALS RECORDED FROM BILATERAL SCALP SITES, AND (II) PERFORMANCE IN HEMISPHERE-SPECIFIC TASKS. BUT CHANGE IN P300 (EVENT-RELATED POTENTIAL GENERATED WHEN SUBJECTS ATTEND TO AND DISCRIMINATE BETWEEN STIMULI) FROM BILATERAL SCALP SITES WHEN SUBJECTS WERE PRACTICING UNI- AND ALTERNATE-NOSTRIL BREATHING ARE YET TO BE EXPLORED. AIM: THE PRESENT STUDY WAS DESIGNED TO DETERMINE WHETHER OR NOT IMMEDIATELY AFTER UNINOSTRIL OR ALTERNATE NOSTRIL YOGA BREATHING THERE WOULD BE A CHANGE IN THE ABILITY TO PAY ATTENTION TO A GIVEN STIMULUS. MATERIALS AND METHODS: TWENTY-NINE HEALTHY MALE VOLUNTEERS, WITH AGES BETWEEN 20 AND 45 YEARS WERE RANDOMLY ALLOCATED TO FIVE SESSIONS, VIZ., (I) RIGHT-, (II) LEFT-, (III) ALTERNATE-NOSTRIL YOGA BREATHING, (IV) BREATH AWARENESS AND (V) NO INTERVENTION, EACH FOR 45 MIN ON SEPARATE DAYS. THE P300 EVENT RELATED POTENTIAL WAS RECORDED USING AN AUDITORY ODDBALL PARADIGM FROM SITES ON THE LEFT (C3) AND RIGHT (C4), REFERENCED TO LINKED EARLOBES, BEFORE AND AFTER EACH SESSION. RESULTS: POST-HOC ANALYSIS WITH BONFERRONI ADJUSTMENT SHOWED THAT THE P300 PEAK LATENCY WAS SIGNIFICANTLY LOWER AT C3 COMPARED TO THAT AT C4, FOLLOWING RIGHT NOSTRIL YOGA BREATHING (P<0.05). CONCLUSION: THESE RESULTS SUGGEST THAT RIGHT NOSTRIL YOGA BREATHING FACILITATES THE ACTIVITY OF CONTRALATERAL (LEFT) HEMISPHERE, IN THE PERFORMANCE OF THE P300 TASK. 2012 5 442 36 CEREBROVASCULAR DYNAMICS ASSOCIATED WITH YOGA BREATHING AND BREATH AWARENESS. AIMS: BREATH FREQUENCY CAN ALTER CEREBRAL BLOOD FLOW. THE STUDY AIMED TO DETERMINE BILATERAL MIDDLE CEREBRAL ARTERIAL HEMODYNAMICS IN HIGH-FREQUENCY YOGA BREATHING (HFYB) AND SLOW FREQUENCY ALTERNATE NOSTRIL YOGA BREATHING (ANYB) USING TRANSCRANIAL DOPPLER SONOGRAPHY. METHODS: HEALTHY MALE VOLUNTEERS WERE ASSESSED IN TWO SEPARATE TRIALS BEFORE, DURING, AND AFTER HFYB (2.0 HZ FOR 1 MIN, N = 16) AND ANYB (12 BREATHS PER MINUTE FOR 5 MIN, N = 22). HFYB AND ANYB WERE SEPARATELY COMPARED TO BREATH AWARENESS (BAW) AND TO CONTROL SESSIONS. STATISTICAL ANALYSIS: THE DATA WERE ANALYZED USING REPEATED-MEASURES ANOVA WITH BONFERRONI ADJUSTED POST HOC TESTS. RESULTS: DURING HFYB THERE WAS A DECREASE IN END-DIASTOLIC VELOCITY (EDV) AND MEAN FLOW VELOCITY (MFV) (P < 0.01 FOR LEFT AND P < 0.05 FOR RIGHT MIDDLE CEREBRAL ARTERIES; MCA) WITH AN INCREASE IN PULSATILITY INDEX (PI) FOR THE RIGHT MCA (P < 0.05). DURING ANYB, THERE WAS A BILATERAL DECREASE IN PEAK SYSTOLIC VELOCITY (P < 0.05 FOR LEFT AND P < 0.01 FOR RIGHT MCA), EDV (P < 0.01) AND MFV (P < 0.01 FOR LEFT AND P < 0.001 FOR RIGHT MCA) AND AN INCREASE IN PI (P < 0.01). DURING BAW OF THE TWO SESSIONS THERE WAS A DECREASE IN LATERALIZED FLOW AND END-DIASTOLIC VELOCITIES (P < 0.05) AND AN INCREASE IN PI (P < 0.05). CONCLUSIONS: CHANGES IN PEAK FLOW VELOCITIES AND PULSATILITY INDICES DURING AND AFTER HFYB, ANYB, AND BAW SUGGEST DECREASED CEREBROVASCULAR BLOOD FLOW AND INCREASED FLOW RESISTANCE BASED ON DIFFERENT MECHANISMS. 2022 6 1329 37 HIGH-FREQUENCY CEREBRAL ACTIVATION AND INTERHEMISPHERIC SYNCHRONIZATION FOLLOWING SUDARSHAN KRIYA YOGA AS GLOBAL BRAIN RHYTHMS: THE STATE EFFECTS. CONTEXT: RESPIRATION IS KNOWN TO MODULATE NEURONAL OSCILLATIONS IN THE BRAIN AND IS MEASURED BY ELECTROENCEPHALOGRAM (EEG). SUDARSHAN KRIYA YOGA (SKY) IS A POPULAR BREATHING PROCESS AND IS ESTABLISHED FOR ITS SIGNIFICANT EFFECTS ON THE VARIOUS ASPECTS OF PHYSIOLOGY AND PSYCHOLOGY. AIMS: THIS STUDY AIMED TO OBSERVE NEURONAL OSCILLATIONS IN MULTIFREQUENCY BANDS AND INTERHEMISPHERIC SYNCHRONIZATION FOLLOWING SKY. SETTINGS AND DESIGN: THIS STUDY EMPLOYED BEFORE- AND AFTER-STUDY DESIGN. SUBJECTS AND METHODS: FORTY HEALTHY VOLUNTEERS (AVERAGE AGE 25.45 +/- 5.75, 23 MALES AND 17 FEMALES) PARTICIPATED IN THE STUDY. NINETEEN-CHANNEL EEG WAS RECORDED AND ANALYZED FOR 5 MIN EACH: BEFORE AND AFTER SKY. SPECTRAL POWER FOR DELTA, THETA, ALPHA, BETA, AND GAMMA FREQUENCY BAND WAS CALCULATED USING MULTI-TAPER FAST FOURIER TRANSFORM (CHRONUX TOOLBOX). THE ASYMMETRY INDEX WAS CALCULATED BY SUBTRACTING THE NATURAL LOG OF POWERS OF LEFT (L) HEMISPHERE FROM THE RIGHT((R)) TO SHOW INTERHEMISPHERIC SYNCHRONIZATION. STATISTICAL ANALYSIS: PAIRED T-TEST WAS USED FOR STATISTICAL ANALYSIS. RESULTS: SPECTRAL POWER INCREASED SIGNIFICANTLY IN ALL FREQUENCY BANDS BILATERALLY IN FRONTAL, CENTRAL, PARIETAL, TEMPORAL, AND OCCIPITAL REGIONS OF THE BRAIN AFTER LONG SKY. ELECTRICAL ACTIVITY SHIFTED FROM LOWER TO HIGHER FREQUENCY RANGE WITH A SIGNIFICANT RISE IN THE GAMMA AND BETA POWERS FOLLOWING SKY. ASYMMETRY INDEX VALUES TENDED TOWARD 0 FOLLOWING SKY. CONCLUSIONS: A SINGLE SESSION OF SKY GENERATES GLOBAL BRAIN RHYTHM DOMINANTLY WITH HIGH-FREQUENCY CEREBRAL ACTIVATION AND INITIATES APPROPRIATE INTERHEMISPHERIC SYNCHRONIZATION IN BRAIN RHYTHMS AS STATE EFFECTS. THIS SUGGESTS THAT SKY LEADS TO BETTER ATTENTION, MEMORY, AND EMOTIONAL AND AUTONOMIC CONTROL ALONG WITH ENHANCED COGNITIVE FUNCTIONS, WHICH FINALLY IMPROVES PHYSICAL AND MENTAL WELL-BEING. 2020 7 1353 37 IMMEDIATE EFFECT OF SPECIFIC NOSTRIL MANIPULATING YOGA BREATHING PRACTICES ON AUTONOMIC AND RESPIRATORY VARIABLES. THE EFFECT OF RIGHT, LEFT, AND ALTERNATE NOSTRIL YOGA BREATHING (I.E., RNYB, LNYB, AND ANYB, RESPECTIVELY) WERE COMPARED WITH BREATH AWARENESS (BAW) AND NORMAL BREATHING (CTL). AUTONOMIC AND RESPIRATORY VARIABLES WERE STUDIED IN 21 MALE VOLUNTEERS WITH AGES BETWEEN 18 AND 45 YEARS AND EXPERIENCE IN THE YOGA BREATHING PRACTICES BETWEEN 3 AND 48 MONTHS. SUBJECTS WERE ASSESSED IN FIVE EXPERIMENTAL SESSIONS ON FIVE SEPARATE DAYS. THE SESSIONS WERE IN FIXED POSSIBLE SEQUENCES AND SUBJECTS WERE ASSIGNED TO A SEQUENCE RANDOMLY. EACH SESSION WAS FOR 40 MIN; 30 MIN FOR THE BREATHING PRACTICE, PRECEDED AND FOLLOWED BY 5 MIN OF QUIET SITTING. ASSESSMENTS INCLUDED HEART RATE VARIABILITY, SKIN CONDUCTANCE, FINGER PLETHYSMOGRAM AMPLITUDE, BREATH RATE, AND BLOOD PRESSURE. FOLLOWING RNYB THERE WAS A SIGNIFICANT INCREASE IN SYSTOLIC, DIASTOLIC AND MEAN PRESSURE. IN CONTRAST, THE SYSTOLIC AND DIASTOLIC PRESSURE DECREASED AFTER ANYB AND THE SYSTOLIC AND MEAN PRESSURE WERE LOWER AFTER LNYB. HENCE, UNILATERAL NOSTRIL YOGA BREATHING PRACTICES APPEAR TO INFLUENCE THE BLOOD PRESSURE IN DIFFERENT WAYS. THESE EFFECTS SUGGEST POSSIBLE THERAPEUTIC APPLICATIONS. 2008 8 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 9 1205 22 EXPERIENCES OF CHILDREN AND PARENTS IN MIYOGA, AN EMBODIED MINDFULNESS YOGA PROGRAM FOR CEREBRAL PALSY: A MIXED METHOD STUDY. BACKGROUND AND PURPOSE: A MINDFULNESS YOGA PROGRAM (MIYOGA) WAS DEVELOPED AND TRIALLED WITH CHILDREN WITH CEREBRAL PALSY AND THEIR PARENTS. THIS MIXED-METHOD STUDY EXPLORES THE EXPERIENCES OF CHILDREN AND PARENTS WHO PARTICIPATED IN MIYOGA, TO ASSESS ITS ACCEPTABILITY, FEASIBILITY AND IMPLEMENTATION. MATERIALS AND METHODS: OF THE FORTY-TWO CHILD-PARENT DYADS WHO PARTICIPATED IN THE MIYOGA RANDOMISED CONTROL TRIAL, 19 CHILDREN AND 22 PARENTS WERE INTERVIEWED INDIVIDUALLY IN A SEMI-STRUCTURED WAY ABOUT THEIR EXPERIENCES OF MIYOGA. PARTICIPANTS RATED THEIR MOOD ON A 5-POINT SCALE BEFORE AND AFTER EACH SESSION AND COMPLETED SHORT QUESTIONNAIRES AT THE END OF EACH SESSION. RESULTS: CHILDREN AND PARENTS REPORTED IMPROVED MOOD AFTER EACH MIYOGA SESSION. PARENTS REPORTED BEING MORE AWARE OF THEIR THOUGHTS AND FEELINGS AND POSSIBLY BECAME MORE AWARE OF THEIR DAY-TO-DAY MINDLESSNESS. CONCLUSION: MIYOGA SIGNIFICANTLY IMPROVED CHILDREN AND PARENTS' MOOD. PARENTS REPORTED GAINS IN AWARENESS AS WELL AS CHALLENGES OF ADHERING TO THE HOME PRACTICE. 2019 10 1354 26 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 11 1632 21 MIYOGA: A RANDOMISED CONTROLLED TRIAL OF A MINDFULNESS MOVEMENT PROGRAMME BASED ON HATHA YOGA PRINCIPLES FOR CHILDREN WITH CEREBRAL PALSY: A STUDY PROTOCOL. INTRODUCTION: CEREBRAL PALSY (CP) IS THE MOST COMMON CHILDHOOD PHYSICAL DISABILITY, WITH LIFE-LONG IMPACTS FOR 1.77 IN 1000 CHILDREN. ALTHOUGH CP IS PRIMARILY A PHYSICAL DISABILITY, CHILDREN WITH CP HAVE AN INCREASED RISK OF EXPERIENCING COGNITIVE DIFFICULTIES, PARTICULARLY ATTENTION AND EXECUTIVE FUNCTION DEFICITS. IMPAIRMENT IN COGNITIVE ABILITIES CAN LEAD TO SUBSEQUENT IMPAIRMENT IN INDEPENDENT FUNCTIONING, EDUCATION, EMPLOYMENT AND INTERPERSONAL RELATIONSHIPS. THIS PAPER REPORTS THE PROTOCOL OF A RANDOMISED CONTROLLED TRIAL OF A NOVEL FAMILY-CENTRED LIFESTYLE INTERVENTION BASED ON MINDFULNESS AND HATHA YOGA PRINCIPLES (MIYOGA). MIYOGA AIMS TO ENHANCE CHILD AND PARENT OUTCOMES FOR CHILDREN WITH CP. METHODS AND ANALYSIS: THE AIM IS TO RECRUIT 36 CHILD-PARENT DYADS (CHILDREN AGED 6-16 YEARS; BILATERAL OR UNILATERAL CP; GROSS MOTOR FUNCTION CLASSIFICATION SYSTEM I-III), WHO WILL BE RANDOMLY ASSIGNED TO TWO GROUPS: MIYOGA ANDWAITLISTT CONTROL. THE MIYOGA PROGRAMME WILL BE FACILITATED IN A GROUP FORMAT FOR 8 WEEKS. ASSESSMENTS WILL BE ADMINISTERED AT BASELINE, PRIOR TO MIYOGA, FOLLOWING COMPLETION OF MIYOGA, AND AT 6-MONTH FOLLOW-UP (RETENTION). THE PRIMARY OUTCOME WILL BE THE CHILD'S SUSTAINED ATTENTIONAL ABILITY AS MEASURED BY THE CONNER'S CONTINUOUS PERFORMANCE TEST II. OTHER OUTCOMES OF INTEREST FOR CHILDREN WITH CP CONSISTS OF ATTENTIONAL CONTROL, PHYSICAL FUNCTIONING, BEHAVIOURAL AND WELL-BEING. FOR PARENTS, THE OUTCOMES OF INTEREST ARE MINDFULNESS, PSYCHOLOGICAL FLEXIBILITY AND WELL-BEING. DATA WILL BE ANALYSED USING GENERAL LINEAR MODELS, SPECIFICALLY ANALYSIS OF COVARIANCE AND ANALYSIS OF VARIANCE. ETHICS AND DISSEMINATION: FULL ETHICAL APPROVAL FOR THIS STUDY HAS BEEN OBTAINED BY THE CHILDREN'S HEALTH QUEENSLAND HOSPITAL AND HEALTH SERVICE RESEARCH ETHICS COMMITTEE (HREC/12/QRCH/120) AND THE UNIVERSITY OF QUEENSLAND (2012000993). IF MIYOGA IS PROVEN EFFECTIVE, ITS DISSEMINATION WOULD ASSIST CHILDREN WITH CP AND COMPLEMENT THEIR ONGOING THERAPY BY IMPROVING THE ABILITY OF THE CHILD TO PAY ATTENTION AT SCHOOL AND IN THERAPY, AND ALLEVIATING ENVIRONMENTALSTRESSORSS FOR BOTH THE CHILD AND HIS/HER PARENTS. TRIAL REGISTRATION NUMBER: ACTRN12613000729729; PRE-RESULTS.HTTP://WWW.ANZCTR.ORG.AU/ACTRN12613000729729.ASPX DATE OF TRIAL REGISTRATION: PROSPECTIVELY REGISTERED ON 2 JULY 2013-PRESENT (ONGOING). FINDINGS TO DATE: RECRUITMENT IS COMPLETE. DATA ARE STILL BEING COLLECTED AT PRESENT. WE AIM TO COMPLETE DATA COLLECTION BY FEBRUARY 2017. 2017 12 1976 32 SIX-MONTH FOLLOW-UP OF A MINDFULNESS YOGA PROGRAM, MIYOGA, ON ATTENTION, EXECUTIVE FUNCTION, BEHAVIOUR AND PHYSICAL OUTCOMES IN CEREBRAL PALSY. PURPOSE: A RANDOMISED CONTROLLED TRIAL (RCT) OF A MINDFULNESS-BASED YOGA PROGRAM, MIYOGA, FOR CEREBRAL PALSY (CP) DEMONSTRATED IMPROVED ATTENTION IN CHILDREN AND DECREASED MINDFULNESS IN PARENTS POST-INTERVENTION. THIS PAPER EVALUATES THE RETENTION OF TREATMENT EFFECTS AT 6-MONTHS FOLLOW-UP. METHODS: 42 CHILDREN WITH CP AND THEIR PARENTS PARTICIPATED IN A RCT WITH TWO GROUPS MIYOGA (N = 21) AND WAITLIST CONTROL GROUP (N = 21). WAITLIST CONTROL PARTICIPANTS WERE OFFERED MIYOGA FOLLOWING THE POST-INTERVENTION ASSESSMENT. 23 OUT OF 42 CHILD-PARENT DYADS FROM BOTH GROUPS COMPLETED FOLLOW-UP ASSESSMENT 6-MONTHS AFTER COMPLETING MIYOGA. THIS PAPER EVALUATES AND REPORTS DATA FROM BOTH GROUPS COLLAPSED (N = 23; MIYOGA N = 11; AND WAITLIST CONTROL N = 12; 47.8% MALE; MEAN AGE = 9:10 +/- 2.4 YEARS) TO ASSESS RETENTION FROM POST-MIYOGA TO FOLLOW-UP AND PRE-MIYOGA TO FOLLOW-UP. THE PRIMARY OUTCOME WAS ATTENTION, MEASURED BY CONNER'S CONTINUOUS PERFORMANCE TEST II (CCPT). SECONDARY OUTCOMES INCLUDED CHILD EXECUTIVE FUNCTION, PHYSICAL FUNCTION, BEHAVIOUR, QUALITY OF LIFE, CHILD AND PARENT MINDFULNESS, PERSONAL WELLBEING, PSYCHOLOGICAL WELLBEING AND PARENT-CHILD RELATIONSHIP. RESULTS: PAIRED T-TESTS SHOWED NO SIGNIFICANT CHANGES BETWEEN POST-MIYOGA TO FOLLOW-UP AND PRE-MIYOGA TO FOLLOW-UP FOR VARIABLES THAT SHOWED AN INTERVENTION EFFECT IMMEDIATELY AFTER MIYOGA, NAMELY, CHILDREN'S ATTENTION VARIABLES AND PARENT'S MINDFULNESS. PAIRED T-TESTS SHOWED THAT CHILDREN'S EXECUTIVE FUNCTION AND PHYSICAL FUNCTION AND PARENT'S WELLBEING IMPROVED SIGNIFICANTLY FROM PRE-MIYOGA TO 6-MONTHS FOLLOW-UP WHICH MAY POTENTIALLY REFLECT SLEEPER OR DELAYED EFFECTS OF MIYOGA. CONCLUSION: THIS STUDY IDENTIFIED POSSIBLE DELAYED OR SLEEPER EFFECTS IN CHILDREN'S EXECUTIVE FUNCTION AND PHYSICAL FUNCTION AND PARENT'S WELL-BEING.IMPLICATIONS FOR REHABILITATION6-MONTH FOLLOW-UP EVIDENCE FOR RETENTION OF EFFECTS OF MIYOGA ON CHILDREN'S ATTENTION WAS INCONSISTENT; THEREFORE, BOOSTER SESSIONS OR CONTINUED PRACTICE OF MIYOGA AS A LIFESTYLE OPTION ARE NEEDED TO MAINTAIN AN EFFECT ON ATTENTION.BECAUSE MIYOGA CAN BE PRACTISED DURING DAILY ACTIVITIES, IT MAY PROVIDE ADDITIONAL SUPPORT FOR CHILDREN WITH CP, COMPLEMENTING STANDARD REHABILITATION OPTIONS.BY EMBEDDING MINDFULNESS IN CHILDREN AND PARENTS' DAILY ACTIVITIES, MIYOGA, COULD PROVIDE FAMILIES WITH ACCESSIBLE AND TIME-EFFICIENT MEANS OF LEARNING AND PRACTICING MINDFULNESS. 2022 13 411 39 BLOOD PRESSURE AND HEART RATE VARIABILITY DURING YOGA-BASED ALTERNATE NOSTRIL BREATHING PRACTICE AND BREATH AWARENESS. BACKGROUND: PREVIOUS RESEARCH HAS SHOWN A REDUCTION IN BLOOD PRESSURE (BP) IMMEDIATELY AFTER THE PRACTICE OF ALTERNATE NOSTRIL YOGA BREATHING (ANYB) IN NORMAL HEALTHY MALE VOLUNTEERS AND IN HYPERTENSIVE PATIENTS OF BOTH SEXES. THE BP DURING ANYB HAS NOT BEEN RECORDED. MATERIAL/METHODS: PARTICIPANTS WERE 26 MALE VOLUNTEERS (GROUP MEAN AGE +/-SD, 23.8+/-3.5 YEARS). WE ASSESSED (1) HEART RATE VARIABILITY, (2) NON-INVASIVE ARTERIAL BP, AND (3) RESPIRATION RATE, DURING (A) ANYB AND (B) BREATH AWARENESS (BAW) SESSIONS. EACH SESSION WAS 25 MINUTES. WE PERFORMED ASSESSMENTS AT 3 TIME POINTS: PRE (5 MINUTES), DURING (15 MINUTES; FOR ANYB OR BAW) AND POST (5 MINUTES). A NAIVE-TO-YOGA CONTROL GROUP (N=15 MALES, MEAN AGE +/-SD 26.1+/-4.0 YEARS) WERE ASSESSED WHILE SEATED QUIETLY FOR 25 MINUTES. RESULTS: DURING ANYB THERE WAS A SIGNIFICANT DECREASE (REPEATED MEASURES ANOVA) IN SYSTOLIC BP AND RESPIRATION RATE; WHILE RMSSD (THE SQUARE ROOT OF THE MEAN OF THE SUM OF SQUARES OF DIFFERENCES BETWEEN ADJACENT NN INTERVALS) AND NN50 (THE NUMBER OF INTERVAL DIFFERENCES OF SUCCESSIVE NORMAL TO NORMAL INTERVALS GREATER THAN 50 MS) SIGNIFICANTLY INCREASED. DURING BAW RESPIRATION RATE DECREASED. IN CONTRAST, RESPIRATION RATE INCREASED DURING THE CONTROL STATE. ANYB AND BAW WERE SIGNIFICANTLY DIFFERENT (2-FACTOR ANOVA) IN RMSSD AND RESPIRATION RATE. BAW AND CONTROL WERE DIFFERENT WITH RESPECT TO RESPIRATION RATE. CONCLUSIONS: THE RESULTS SUGGEST THAT VAGAL ACTIVITY INCREASED DURING AND AFTER ANYB, WHICH COULD HAVE CONTRIBUTED TO THE DECREASE IN BP AND CHANGES IN THE HRV. 2014 14 457 27 CHANGES IN P300 FOLLOWING ALTERNATE NOSTRIL YOGA BREATHING AND BREATH AWARENESS. THIS STUDY ASSESSED THE EFFECT OF ALTERNATE NOSTRIL YOGA BREATHING (NADISUDDHI PRANAYAMA) ON P300 AUDITORY EVOKED POTENTIALS COMPARED TO A SESSION OF BREATH AWARENESS OF EQUAL DURATION, IN 20 MALE ADULT VOLUNTEERS WHO HAD AN EXPERIENCE OF YOGA BREATHING PRACTICES FOR MORE THAN THREE MONTHS. PEAK AMPLITUDES AND PEAK LATENCIES OF THE P300 WERE ASSESSED BEFORE AND AFTER THE RESPECTIVE SESSIONS. THERE WAS A SIGNIFICANT INCREASE IN THE P300 PEAK AMPLITUDES AT FZ, CZ, AND PZ AND A SIGNIFICANT DECREASE IN THE PEAK LATENCY AT FZ ALONE FOLLOWING ALTERNATE NOSTRIL YOGA BREATHING. FOLLOWING BREATH AWARENESS THERE WAS A SIGNIFICANT INCREASE IN THE PEAK AMPLITUDE OF P300 AT CZ. THIS SUGGESTS THAT ALTERNATE NOSTRIL YOGA BREATHING POSITIVELY INFLUENCES COGNITIVE PROCESSES WHICH ARE REQUIRED FOR SUSTAINED ATTENTION AT DIFFERENT SCALP SITES (FRONTAL, VERTEX AND PARIETAL), WHEREAS BREATH AWARENESS BRINGS ABOUT CHANGES AT THE VERTEX ALONE. 2013 15 463 43 CHANGES IN SHAPE AND SIZE DISCRIMINATION AND STATE ANXIETY AFTER ALTERNATE-NOSTRIL YOGA BREATHING AND BREATH AWARENESS IN ONE SESSION EACH. BACKGROUND YOGA BREATHING TECHNIQUES LIKE HIGH-FREQUENCY YOGA BREATHING (HFYB) AND BREATH AWARENESS (BAW) HAVE BEEN ASSOCIATED WITH IMPROVED PERFORMANCE IN THE SHAPE AND SIZE DISCRIMINATION TASK. A PUBMED SEARCH OF THE LITERATURE REVEALED THAT ALTERNATE-NOSTRIL BREATHING HAS BEEN SHOWN TO IMPROVE PERFORMANCE IN ATTENTION TASKS, BUT THE EFFECT ON TACTILE PERCEPTION HAS NOT BEEN STUDIED. HENCE, THE PRESENT STUDY WAS DESIGNED TO ASSESS THE IMMEDIATE EFFECTS OF ALTERNATE-NOSTRIL YOGA BREATHING (ANYB) COMPARED TO BREATH AWARENESS ON SHAPE AND SIZE DISCRIMINATION AND STATE ANXIETY. MATERIAL AND METHODS FIFTY HEALTHY MALE VOLUNTEERS AGES 20-50 YEARS (GROUP MEAN +/-S.D., 28.4+/-8.2 YEARS) WERE RECRUITED. EACH PARTICIPANT WAS ASSESSED IN 3 SESSIONS CONDUCTED ON 3 SEPARATE DAYS AT THE SAME TIME OF DAY. THE 3 SESSIONS WERE (I) ALTERNATE-NOSTRIL YOGA BREATHING (ANYB), (II) BREATH AWARENESS (BAW), AND (III) QUIET SITTING (QS), AND THE SEQUENCE OF THE SESSIONS WAS RANDOMLY ALLOCATED. THE SHAPE AND SIZE DISCRIMINATION TASK AND STATE ANXIETY WERE ASSESSED BEFORE AND AFTER ALL 3 SESSIONS. REPEATED MEASURES ANALYSIS OF VARIANCE (RM-ANOVA) FOLLOWED BY POST HOC TESTS FOR MULTIPLE COMPARISONS, WHICH WERE BONFERRONI-ADJUSTED, WERE PERFORMED TO COMPARE DATA BEFORE AND AFTER ALL 3 SESSIONS USING SPSS VERSION 18.0. RESULTS THE ERRORS SCORES IN THE SHAPE AND SIZE DISCRIMINATION TASK SHOWED A SIGNIFICANT REDUCTION AFTER THE ANYB SESSION (P<0.001). A SIGNIFICANT REDUCTION WAS FOUND IN THE LEVEL OF STATE ANXIETY AFTER BREATH AWARENESS (P<0.05) AND QUIET SITTING SESSIONS (P<0.001). CONCLUSIONS THE PRESENT RESULTS SUGGEST THAT ANYB: (I) IMPROVES PERFORMANCE IN A TASK WHICH REQUIRES PERCEPTUAL SENSITIVITY AND FOCUSED ATTENTION, BUT (II) DOES NOT REDUCE STATE ANXIETY FOLLOWING THIS TASK. 2019 16 732 23 EFFECT OF MINDFULNESS YOGA PROGRAMME MIYOGA ON ATTENTION, BEHAVIOUR, AND PHYSICAL OUTCOMES IN CEREBRAL PALSY: A RANDOMIZED CONTROLLED TRIAL. AIM: TO INVESTIGATE THE EFFICACY OF AN EMBODIED MINDFULNESS-BASED MOVEMENT PROGRAMME (MIYOGA), TARGETING ATTENTION IN CHILDREN WITH CEREBRAL PALSY (CP). METHOD: TOTAL NUMBER OF PARTICIPANTS 42, WITH 24 BOYS (57.1%) AND 18 GIRLS (42.9%); MEAN AGE 9Y 1MO, SD 3Y; GROSS MOTOR FUNCTION CLASSIFICATION SYSTEM LEVELS I=22, II=12, III=8) AND THEIR PARENTS WERE RANDOMIZED TO EITHER MIYOGA (N=21) OR WAITLIST COMPARISON (N=21) GROUPS. THE PRIMARY OUTCOME WAS ATTENTION POSTINTERVENTION MEASURED BY THE CONNERS' CONTINUOUS PERFORMANCE TEST, SECOND EDITION (CCPT). SECONDARY OUTCOMES INCLUDED PARENT AND CHILD MINDFULNESS, CHILD QUALITY OF LIFE, PARENTAL WELL-BEING, CHILD EXECUTIVE FUNCTION, CHILD BEHAVIOUR, CHILD PHYSICAL MEASURES, AND THE PARENT-CHILD RELATIONSHIP. RESULTS: CHILDREN IN THE MIYOGA GROUP DEMONSTRATED SIGNIFICANTLY BETTER ATTENTION POSTINTERVENTION THAN THE WAITLIST COMPARISON GROUP, WITH LOWER INATTENTION SCORES ON THE HIT REACTION TIME STANDARD ERROR (F1,33 =4.59, P=0.04, PARTIAL ETA-SQUARED [ETAP2]=0.13) VARIABLE AND FEWER PERSEVERATION ERRORS (F1,33 =4.60, P=0.04, ETAP2=0.13) ON THE CCPT. INTENTION-TO-TREAT ANALYSIS ALSO REVEALED THAT SUSTAINED ATTENTION IN THE MIYOGA GROUP WAS SIGNIFICANTLY BETTER THAN IN THE WAITLIST COMPARISON GROUP POSTINTERVENTION (F1,37 =5.97, P=0.02, ETAP2=0.14). PARENTS IN THE MIYOGA GROUP DEMONSTRATED SIGNIFICANTLY DECREASED MINDFULNESS (MINDFULNESS ATTENTION AWARENESS SCALE; F1,33 =10.130, P=0.003, ETAP2=0.246). INTERPRETATION: MIYOGA OFFERS A LIFESTYLE INTERVENTION THAT IMPROVES ATTENTION IN CHILDREN WITH CP. MIYOGA CAN BE CONSIDERED AS AN ADDITIONAL OPTION TO STANDARD REHABILITATION TO ENHANCE ATTENTION FOR CHILDREN WITH CP. WHAT THIS PAPER ADDS: MIYOGA, AN EMBODIED MINDFULNESS-BASED MOVEMENT PROGRAMME, CAN ENHANCE ATTENTION (MORE ATTENTIVE AND CONSISTENT PERFORMANCE) IN CHILDREN WITH CEREBRAL PALSY. MIYOGA HAD NO SIGNIFICANT EFFECT ON PHYSICAL FUNCTIONING. 2018 17 1695 39 P300 FOLLOWING FOUR VOLUNTARILY REGULATED YOGA BREATHING PRACTICES AND BREATH AWARENESS. ATTENTION WAS INFLUENCED BY YOGA BREATHING IN PREVIOUSLY PUBLISHED RESEARCH. EACH YOGA BREATHING PRACTICE UNIQUELY MODIFIES SPECIFIC BREATH CHARACTERISTICS. DIFFERENCES IN THE STUDY DESIGNS, ASSESSMENT METHODS AND INTERVENTIONS RESULTED IN DIFFICULTY IN COMPARING EFFECTS BETWEEN YOGA BREATHING PRACTICES. THIS STUDY AIMED (I) TO COMPARE FOUR YOGA BREATHING PRACTICES ON ATTENTION USING AN AUDITORY ODDBALL TASK AND (II) TO DETERMINE CARDIAC AUTONOMIC ACTIVITY ASSOCIATED WITH ATTENTION USING HEART RATE VARIABILITY. P300 EVENT RELATED POTENTIAL WAS RECORDED SIMULTANEOUSLY WITH HEART RATE VARIABILITY BEFORE AND AFTER 18-MINUTE PERIODS EACH OF (I) HIGH FREQUENCY YOGA BREATHING (WITH INCREASED BREATH FREQUENCY), (II) BELLOWS YOGA BREATHING (WITH INCREASED DEPTH OF RESPIRATION), (III) ALTERNATE NOSTRIL YOGA BREATHING (WITH ALTERNATE NOSTRIL PATENCY), (IV) BUMBLEBEE YOGA BREATHING (WITH PROLONGED EXHALE), (V) BREATH AWARENESS (WITH ATTENTION TO THE BREATH) AND (VI) QUIET SEATED REST AS CONTROL IN 38 YOGA EXPERIENCED MALES (AVERAGE AGE +/- SD; 24.08 +/- 4.01 YEARS). THE SIX SESSIONS WERE ON SEPARATE, RANDOMLY ALLOCATED DAYS. THE P300 PEAK AMPLITUDE RECORDED AT PZ WAS SIGNIFICANTLY INCREASED AFTER FOUR YOGA BREATHING PRACTICES (BONFERRONI ADJUSTED POST-HOC TESTS, REPEATED MEASURES ANOVA). NO SIGNIFICANT CHANGES WERE NOTED IN HEART RATE VARIABILITY FOLLOWING YOGA BREATHING OR CONTROL SESSIONS. THESE FINDINGS SUGGEST THAT THE FOUR YOGA BREATHING PRACTICES INCREASE THE ATTENTIONAL NEURAL RESOURCES ENGAGED FOR THIS AUDITORY ODDBALL TASK, IRRESPECTIVE OF THE CHARACTERISTIC OF BREATH UNIQUELY REGULATED IN THE FOUR YOGA BREATHING PRACTICES. 2022 18 98 31 A NONRANDOMIZED NON-NAIVE COMPARATIVE STUDY OF THE EFFECTS OF KAPALABHATI AND BREATH AWARENESS ON EVENT-RELATED POTENTIALS IN TRAINED YOGA PRACTITIONERS. OBJECTIVES: THE STUDY WAS CONDUCTED TO COMPARE THE P300 EVENT-RELATED POTENTIALS RECORDED BEFORE AND AFTER (1) HIGH-FREQUENCY YOGA BREATHING (HFYB) AND (2) BREATH AWARENESS. DESIGN: THE P300 WAS RECORDED IN PARTICIPANTS OF TWO GROUPS BEFORE AND AFTER THE INTERVENTION SESSION (1 MINUTE IN DURATION). SETTINGS AND LOCATION: ALL PARTICIPANTS WERE RECEIVING YOGA TRAINING IN A RESIDENTIAL YOGA CENTER, SWAMI VIVEKANADA YOGA RESEARCH FOUNDATION IN BANGALORE, INDIA. SUBJECTS: THIRTY (30) MALE PARTICIPANTS FORMED TWO GROUPS (N = 15 EACH) WITH COMPARABLE AGES (WITHIN AN AGE RANGE OF 20-35 YEARS) AND COMPARABLE EXPERIENCE OF THE TWO TECHNIQUES, THE MINIMUM EXPERIENCE BEING 3 MONTHS. INTERVENTIONS: THE TWO GROUPS WERE EACH GIVEN A SEPARATE INTERVENTION. ONE GROUP PRACTICED A HFYB AT A FREQUENCY OF APPROXIMATELY 2.0 HZ, CALLED KAPALABHATI. THE OTHER GROUP PRACTICED BREATH AWARENESS DURING WHICH PARTICIPANTS WERE AWARE OF THEIR BREATH WHILE SEATED, RELAXED. OUTCOME MEASURES: THE P300 EVENT-RELATED POTENTIAL, WHICH IS GENERATED WHEN ATTENDING TO AND DISCRIMINATING BETWEEN AUDITORY STIMULI, WAS RECORDED BEFORE AND AFTER BOTH TECHNIQUES. RESULTS: THE P300 PEAK LATENCY DECREASED AFTER HFYB AND THE P300 PEAK AMPLITUDE INCREASED AFTER BREATH AWARENESS. CONCLUSIONS: BOTH PRACTICES (HFYB AND BREATH AWARENESS), THOUGH VERY DIFFERENT, INFLUENCED THE P300. HFYB REDUCED THE PEAK LATENCY, SUGGESTING A DECREASE IN TIME NEEDED FOR THIS TASK, WHICH REQUIRES SELECTIVE ATTENTION. BREATH AWARENESS INCREASED THE P300 PEAK AMPLITUDE, SUGGESTING AN INCREASE IN THE NEURAL RESOURCES AVAILABLE FOR THE TASK. 2009 19 1317 33 HEART RATE VARIABILITY CHANGES DURING HIGH FREQUENCY YOGA BREATHING AND BREATH AWARENESS. BACKGROUND: PRE AND POST COMPARISON AFTER ONE MINUTE OF HIGH FREQUENCY YOGA BREATHING (HFYB) SUGGESTED THAT THE HFYB MODIFIES THE AUTONOMIC STATUS BY INCREASING SYMPATHETIC MODULATION, BUT ITS EFFECT DURING THE PRACTICE WAS NOT ASSESSED. METHODS: THIRTY-EIGHT MALE VOLUNTEERS WITH GROUP AVERAGE AGE +/- S.D., 23.3 +/- 4.4 YEARS WERE EACH ASSESSED ON TWO SEPARATE DAYS IN TWO SESSIONS, (I) HFYB AND (II) BREATH AWARENESS. EACH SESSION WAS FOR 35 MINUTES, WITH 3 PERIODS, I.E., PRE (5 MINUTES), DURING HFYB OR BREATH AWARENESS (15 MINUTES) AND POST (5 MINUTES). RESULTS: THERE WAS A SIGNIFICANT DECREASE IN NN50, PNN50 AND THE MEAN RR INTERVAL DURING AND AFTER HFYB AND AFTER BREATH AWARENESS, COMPARED TO THE RESPECTIVE 'PRE' VALUES (P < 0.05) (REPEATED MEASURES ANOVA FOLLOWED BY POST-HOC ANALYSIS). THE LF POWER INCREASED AND HF POWER DECREASED DURING AND AFTER BREATH AWARENESS AND LF/HF RATIO INCREASED AFTER BREATH AWARENESS (P < 0.05). CONCLUSION: THE RESULTS SUGGEST THAT THERE WAS REDUCED PARASYMPATHETIC MODULATION DURING AND AFTER HFYB AND INCREASED SYMPATHETIC MODULATION WITH REDUCED PARASYMPATHETIC MODULATION DURING AND AFTER BREATH AWARENESS. 2011 20 454 28 CHANGES IN MIDLATENCY AUDITORY EVOKED POTENTIALS FOLLOWING TWO YOGA-BASED RELAXATION TECHNIQUES. PRACTICING MEDITATION WHILE FOCUSING ON A SOUND OR A SYMBOL INFLUENCED MIDLATENCY AUDITORY EVOKED POTENTIALS (MLAEPS). CYCLIC MEDITATION (CM) IS A TECHNIQUE COMBINING YOGA POSTURES WITH MEDITATION WHILE SUPINE, WHICH HAS INFLUENCED THE P300 EVENT-RELATED POTENTIAL. THE EFFECTS OF CM ON MLAEPS HAVE NOT BEEN PREVIOUSLY STUDIED. THE MLAEPS WERE STUDIED BEFORE AND AFTER THE PRACTICE OF CM COMPARED TO AN EQUAL DURATION OF SUPINE REST (SR) IN 47 MALE VOLUNTEERS (GROUP MEAN AGE 26.5 +/- 4.4 YEARS), RECORDED FROM THE VERTEX REFERENCED TO LINKED EARLOBES. THE SESSIONS WERE ONE DAY APART AND SUBJECTS WERE RANDOMLY ASSIGNED TO EACH SESSION. THE PA WAVE PEAK LATENCY AND NB WAVE PEAK LATENCY SIGNIFICANTLY INCREASED FOLLOWING CM COMPARED TO BEFORE CM (REPEATED MEASURES ANOVA, POST-HOC ANALYSIS WITH LEAST SIGNIFICANT DIFFERENCE, P<0.05). THERE WAS A SIGNIFICANT INCREASE IN THE PEAK AMPLITUDE OF THE NB WAVE (P<0.05) COMPARED TO BEFORE CM. POST SR THERE WAS A SIGNIFICANT INCREASE IN THE PEAK LATENCY OF THE NA WAVE (P<0.05) COMPARED TO BEFORE SR. IN CONCLUSION FOLLOWING CM THE LATENCIES OF NEURAL GENERATORS CORRESPONDING TO CORTICAL AREAS IS PROLONGED, WHEREAS FOLLOWING SR A SIMILAR CHANGE OCCURS AT MESENCEPHALIC-DIENCEPHALIC LEVELS. 2009