Moderate-intensity exercise with blood flow restriction on cardiopulmonary kinetics and efficiency during a subsequent high-intensity exercise in young women: A cross-sectional study.
Medicine (Baltimore)
; 100(31): e25368, 2021 Aug 06.
Article
em En
| MEDLINE
| ID: mdl-34397788
ABSTRACT
ABSTRACT Blood flow restriction (BFR) training applied prior to a subsequent exercise has been used as a method to induce changes in oxygen uptake pulmonary kinetics (O2P) and exercise performance. However, the effects of a moderate-intensity training associated with BFR on a subsequent high-intensity exercise on O2P and cardiac output (QT) kinetics, exercise tolerance, and efficiency remain unknown.This prospective physiologic study was performed at the Exercise Physiology Lab, University of Brasilia. Ten healthy females (meanâ±âSD values ageâ=â21.3â±â2.2âyears; heightâ=â1.6â±â0.07âm, and weightâ=â55.6â±â8.8âkg) underwent moderate-intensity training associated with or without BFR for 6 minutes prior to a maximal high-intensity exercise bout. O2P, heart rate, and QT kinetics and gross efficiency were obtained during the high-intensity constant workload exercise test.No differences were observed in O2P, heart rate, and QT kinetics in the subsequent high-intensity exercise following BFR training. However, exercise tolerance and gross efficiency were significantly greater after BFR (220â±â45 vs 136â±â30âseconds; Pâ<â.05, and 32.8â±â6.3 vs 27.1â±â5.4%; Pâ<â.05, respectively), which also resulted in lower oxygen cost (1382â±â227 vs 1695â±â305âmLâmin-1).We concluded that moderate-intensity BFR training implemented prior to a high-intensity protocol did not accelerate subsequent O2P and QT kinetics, but it has the potential to improve both exercise tolerance and work efficiency at high workloads.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fluxo Sanguíneo Regional
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Exercício Físico
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Precondicionamento Isquêmico
Tipo de estudo:
Observational_studies
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Prevalence_studies
Limite:
Adult
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Female
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Humans
Idioma:
En
Revista:
Medicine (Baltimore)
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
EEUU
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ESTADOS UNIDOS
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ESTADOS UNIDOS DA AMERICA
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EUA
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UNITED STATES
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UNITED STATES OF AMERICA
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US
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USA