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ORIGINAL ARTICLE EXERCISE PHYSIOLOGY AND BIOMECHANICS
The Journal of Sports Medicine and Physical Fitness 2020 August;60(8):1101-9
DOI: 10.23736/S0022-4707.20.10793-X
Copyright © 2020 EDIZIONI MINERVA MEDICA
language: English
Dynamics of ventilation parameters at different load intensities and the options to influence it by a breathing exercise
Petr BAHENSKÝ 1 ✉, Václav BUNC 2, David MARKO 1, Renata MALÁTOVÁ 1
1 Department of Sports Science, Faculty of Education, University of South Bohemia, České Budějovice, Czech Republic; 2 Sports Motor Skills Laboratory, Faculty of Sports, Physical Training and Education, Charles University, Prague, Czech Republic
BACKGROUND: Minimizing the energy required for breathing muscles is based on the adaptation of the respiratory muscles which is reflected in the reduction of breathing frequency (BF) and tidal volume (V
METHODS: Study recruit 36 runners of both sexes with a mean age 16.8±1.6 years. A random distribution was performed. The intervention program consisted of a set of BE aimed at the activation of the diaphragm. We monitored the dynamics of ventilation parameters at intensities 2, 3, 4 W/kg during a stepped test on a bicycle ergometer.
RESULTS: The BE was focused on the activation of the diaphragm for a 12.2±3.6 minutes per day, sixteen weeks. After eight weeks, there were significant changes in V
CONCLUSIONS: It was confirmed that the two-month BE intervention focused on the activation of the diaphragm is sufficient and resulted in a significant change in the values of dynamic ventilation parameters. After four months of intervention, the changes are significantly greater compared with values found after a two-month intervention period.
KEY WORDS: Breathing exercises; Indirect calorimetry; Ventilation