Impact of a Breathing Intervention on Engagement of Abdominal, Thoracic, and Subclavian Musculature during Exercise, a Randomized Trial.

Autor: Bahenský P; Department of Sports Studies, Faculty of Education, University of South Bohemia, 371 15 České Budějovice, Czech Republic., Bunc V; Sports Motor Skills Laboratory, Faculty of Sports, Physical Training and Education, Charles University, 165 52 Prague, Czech Republic., Malátová R; Department of Sports Studies, Faculty of Education, University of South Bohemia, 371 15 České Budějovice, Czech Republic., Marko D; Department of Sports Studies, Faculty of Education, University of South Bohemia, 371 15 České Budějovice, Czech Republic., Grosicki GJ; Department of Health Sciences and Kinesiology, Biodynamics and Human Performance Center, Armstrong Campus, Georgia Southern University, Savannah, GA 31419, USA., Schuster J; Department of Sports Studies, Faculty of Education, University of South Bohemia, 371 15 České Budějovice, Czech Republic.
Jazyk: angličtina
Zdroj: Journal of clinical medicine [J Clin Med] 2021 Aug 10; Vol. 10 (16). Date of Electronic Publication: 2021 Aug 10.
DOI: 10.3390/jcm10163514
Abstrakt: Background: Breathing technique may influence endurance exercise performance by reducing overall breathing work and delaying respiratory muscle fatigue. We investigated whether a two-month yoga-based breathing intervention could affect breathing characteristics during exercise.
Methods: Forty-six endurance runners (age = 16.6 ± 1.2 years) were randomized to either a breathing intervention or control group. The contribution of abdominal, thoracic, and subclavian musculature to respiration and ventilation parameters during three different intensities on a cycle ergometer was assessed pre- and post-intervention.
Results: Post-intervention, abdominal, thoracic, and subclavian ventilatory contributions were altered at 2 W·kg -1 (27:23:50 to 31:28:41), 3 W·kg -1 (26:22:52 to 28:31:41), and 4 W·kg -1 (24:24:52 to 27:30:43), whereas minimal changes were observed in the control group. More specifically, a significant ( p < 0.05) increase in abdominal contribution was observed at rest and during low intensity work (i.e., 2 and 3 W·kg -1 ), and a decrease in respiratory rate and increase of tidal volume were observed in the experimental group.
Conclusions: These data highlight an increased reliance on more efficient abdominal and thoracic musculature, and less recruitment of subclavian musculature, in young endurance athletes during exercise following a two-month yoga-based breathing intervention. More efficient ventilatory muscular recruitment may benefit endurance performance by reducing energy demand and thus optimize energy requirements for mechanical work.
Databáze: MEDLINE
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