Effects of yoga breathing practice on heart rate variability in healthy adolescents: a randomized controlled trial

Background: This study was conducted among healthy adolescents to assess the effects of a yoga breathing practice (Bhramari pranayama, Bhr.P) towards cardiac autonomic function using heart rate variability (HRV) parameters. Methods: Of the 730 eligible subjects screened, 520 healthy adolescents who...

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Main Authors: Maheshkumar Kuppusamy, Dilara Kamaldeen, Ravishankar Pitani, Julius Amaldas, Padmavathi Ramasamy, Poonguzhali Shanmugam, Venugopal Vijayakumar
Format: Article
Language:English
Published: Elsevier 2020-03-01
Series:Integrative Medicine Research
Online Access:http://www.sciencedirect.com/science/article/pii/S2213422020300068
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author Maheshkumar Kuppusamy
Dilara Kamaldeen
Ravishankar Pitani
Julius Amaldas
Padmavathi Ramasamy
Poonguzhali Shanmugam
Venugopal Vijayakumar
author_facet Maheshkumar Kuppusamy
Dilara Kamaldeen
Ravishankar Pitani
Julius Amaldas
Padmavathi Ramasamy
Poonguzhali Shanmugam
Venugopal Vijayakumar
author_sort Maheshkumar Kuppusamy
collection DOAJ
description Background: This study was conducted among healthy adolescents to assess the effects of a yoga breathing practice (Bhramari pranayama, Bhr.P) towards cardiac autonomic function using heart rate variability (HRV) parameters. Methods: Of the 730 eligible subjects screened, 520 healthy adolescents who met the inclusion and exclusion criteria were randomly assigned to either yoga breathing group (n = 260) or control group (n = 260). The yoga breathing group practiced Bhr.P. five days a week for a duration of six months while the control group continued with their daily routine without any intervention. Outcome measures were time and frequency domain of HRV in both groups which were assessed before and after the intervention using Lead II ECG. Linear models were used in the analysis of short term HRV. Results: After 6 months of yoga breathing, the time domain parameters of short term HRV showed significant (P < 0.05) improvement towards the parasympathetic domain. Frequency domain parameters also showed the same direction of changes. In contrast, control group subjects showed a trend towards a sympathetic domain. Conclusion: The present study showed a positive shift in cardiac autonomic modulation towards parasympathetic predominance after 6 months of yoga breathing practice among apparently healthy adolescents. Keywords: Yoga, Bhramari pranayama, Autonomic function, Heart rate variability, Adolescents
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spelling doaj.art-73908eb4829a4d7aadb180d82d7f3d9b2022-12-22T01:51:20ZengElsevierIntegrative Medicine Research2213-42202020-03-01912832Effects of yoga breathing practice on heart rate variability in healthy adolescents: a randomized controlled trialMaheshkumar Kuppusamy0Dilara Kamaldeen1Ravishankar Pitani2Julius Amaldas3Padmavathi Ramasamy4Poonguzhali Shanmugam5Venugopal Vijayakumar6Government Yoga and Naturopathy Medical College and Hospital, Chennai, India; Corresponding author at: Government Yoga and Naturopathy Medical College and Hospital, Chennai 600106, India.Department of Physiology, Sri Ramachandra Medical College and Research Institute, Chennai, IndiaDepartment of Community Medicine, Ramachandra Medical College and Research Institute, Chennai, IndiaDepartment of Biochemistry, Sri Balaji Dental College and Hospital, Bharath University, Chennai, IndiaDepartment of Physiology, Sri Ramachandra Medical College and Research Institute, Chennai, IndiaGovernment Yoga and Naturopathy Medical College and Hospital, Chennai, IndiaGovernment Yoga and Naturopathy Medical College and Hospital, Chennai, IndiaBackground: This study was conducted among healthy adolescents to assess the effects of a yoga breathing practice (Bhramari pranayama, Bhr.P) towards cardiac autonomic function using heart rate variability (HRV) parameters. Methods: Of the 730 eligible subjects screened, 520 healthy adolescents who met the inclusion and exclusion criteria were randomly assigned to either yoga breathing group (n = 260) or control group (n = 260). The yoga breathing group practiced Bhr.P. five days a week for a duration of six months while the control group continued with their daily routine without any intervention. Outcome measures were time and frequency domain of HRV in both groups which were assessed before and after the intervention using Lead II ECG. Linear models were used in the analysis of short term HRV. Results: After 6 months of yoga breathing, the time domain parameters of short term HRV showed significant (P < 0.05) improvement towards the parasympathetic domain. Frequency domain parameters also showed the same direction of changes. In contrast, control group subjects showed a trend towards a sympathetic domain. Conclusion: The present study showed a positive shift in cardiac autonomic modulation towards parasympathetic predominance after 6 months of yoga breathing practice among apparently healthy adolescents. Keywords: Yoga, Bhramari pranayama, Autonomic function, Heart rate variability, Adolescentshttp://www.sciencedirect.com/science/article/pii/S2213422020300068
spellingShingle Maheshkumar Kuppusamy
Dilara Kamaldeen
Ravishankar Pitani
Julius Amaldas
Padmavathi Ramasamy
Poonguzhali Shanmugam
Venugopal Vijayakumar
Effects of yoga breathing practice on heart rate variability in healthy adolescents: a randomized controlled trial
Integrative Medicine Research
title Effects of yoga breathing practice on heart rate variability in healthy adolescents: a randomized controlled trial
title_full Effects of yoga breathing practice on heart rate variability in healthy adolescents: a randomized controlled trial
title_fullStr Effects of yoga breathing practice on heart rate variability in healthy adolescents: a randomized controlled trial
title_full_unstemmed Effects of yoga breathing practice on heart rate variability in healthy adolescents: a randomized controlled trial
title_short Effects of yoga breathing practice on heart rate variability in healthy adolescents: a randomized controlled trial
title_sort effects of yoga breathing practice on heart rate variability in healthy adolescents a randomized controlled trial
url http://www.sciencedirect.com/science/article/pii/S2213422020300068
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