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Effect of acute heart rate variability biofeedback on H-reflex modulation: A pilot study


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Pagaduan, JC ORCID: 0000-0003-1435-7636, Wu, SSX, Fell, JW ORCID: 0000-0001-6094-9865 and Chen, YS 2021 , 'Effect of acute heart rate variability biofeedback on H-reflex modulation: A pilot study' , Journal of Human Kinetics, vol. 76, no. 1 , pp. 83-88 , doi: 10.2478/hukin-2021-0001.

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Heart rate variability biofeedback (HRV BFB) is paced breathing scheme that stimulates resonance in the cardiovascular system. This study aimed to investigate the effect of a single-session HRV BFB on Hoffman reflex (H-reflex) of the soleus muscle. Twelve healthy males (height: 173.7 ± 7.18 cm; weight: 72.7 ± 17.7 kg; age: 24.0 ± 5.02 yrs) completed a randomized-crossover intervention involving a 10-minute HRV BFB and normal breathing (CON) separated by 48 hours. Results revealed significantly lower 1a afferent activation after HRV BFB. Similarly, the HRV BFB also demonstrated lower proportion of activated motor neurons from 1a afferents. In conclusion, an acute HRV BFB influenced the reduction in motoneuron excitability at resting condition.

Item Type: Article
Authors/Creators:Pagaduan, JC and Wu, SSX and Fell, JW and Chen, YS
Keywords: H-reflex, biofeedback, neural excitation, resonance frequency breathing
Journal or Publication Title: Journal of Human Kinetics
Publisher: Academy of Physical Education
ISSN: 1640-5544
DOI / ID Number: 10.2478/hukin-2021-0001
Copyright Information:

Copyright 2021 Jeffrey Cayaban Pagaduan, Sam Shi Xuan Wu, James William Fell, Yung-Sheng Chen, published by Sciendo. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

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