Breathing resistance in metabolic systems: Its effects on pulmonary ventilation and oxygen uptake in elite athletes with high aerobic power

Author:

Ainegren Mats1ORCID,Jensen Kurt2,Rosdahl Hans3

Affiliation:

1. Sports Tech Research Centre, Department of Quality Technology and Mechanical Engineering, Mid Sweden University, Östersund, Sweden

2. Department of Sports Science and Clinical Biomechanics, Muscle Physiology and Biomechanics, The University of Southern Denmark, Odense, Denmark

3. The Swedish School of Sport and Health Sciences, Stockholm, Sweden

Abstract

The aim of this study was to investigate the effects on pulmonary ventilation and oxygen uptake ( [Formula: see text]O2) in athletes with a very high maximal oxygen uptake ( [Formula: see text]O2 max) and corresponding high ventilation capacity when using a modern metabolic system with relatively high resistance to breathing (HIGHRES), compared to a traditional system with low resistance to breathing (LOWRES). Four rowers and three cross-country skiers (without asthma), competing at a high international level, performed in experimental conditions with LOWRES and HIGHRES using a rowing ergometer and roller skis on a treadmill. The results showed that [Formula: see text]O2, blood lactate, heart rate and respiratory exchange ratio were not different between the LOWRES and HIGHRES test conditions during both submaximal and maximal exercise. Also, the athlete’s time to exhaustion (treadmill) and mean power (rowing ergometer) from maximal tests were no different between the two conditions. However, ventilation and expiratory O2 and CO2 concentrations were different for both submaximal and maximal exercise. Thus, the authors have concluded that the differences in resistance to breathing of metabolic systems influence elite endurance athletes [Formula: see text] E at low to very high workloads, thus affecting the expired gas fractions, but not the submaximal [Formula: see text]O2, [Formula: see text]O2 max and performance in a laboratory setting at sea level.

Publisher

SAGE Publications

Subject

General Engineering

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Influence of an Exercise-Specific Face Mask on Physiological and Perceptual Responses to Graded Exercise;Journal of Functional Morphology and Kinesiology;2024-03-08

2. Development of special endurance for cross-country skiers of 15-17 years old;Journal of Human Sport and Exercise - 2021 - Autumn Conferences of Sports Science;2021

3. Breathing resistance in heat and moisture exchanging devices;Proceedings of the Institution of Mechanical Engineers, Part P: Journal of Sports Engineering and Technology;2020-12-15

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