VO2 response at the onset of heavy exercise is accelerated not by diathermic warming of the thigh muscles but by prior heavy exercise.
Res Sports Med
; 20(1): 13-24, 2012 Jan.
Article
em En
| MEDLINE
| ID: mdl-22242734
ABSTRACT
We investigated whether the elevated muscle temperature induced by the first bout influenced the VO2 response during a second-bout of heavy exercise. The control conditions were two consecutive 6-min leg cycling bouts (work rate Δ50% between LT and VO2max) separated by a 6-min baseline at 20 W (L1-ex to L2-ex). In the experimental conditions prior to the main bout (H2-ex), the diathermic warming to the front thigh was substituted for the first-bout. The VO2 response for the second bout was significantly accelerated compared with the first bout (mean ± SD of the τ by monoexponential fitting L1-ex 53.8 ± 11.6, L2-ex 38.7 ± 7.9 s, P < 0.05). The diathermic warm-up, however, could not accelerate VO2 response for subsequent supra-LT leg exercise (τ for H2-ex 52.3 ± 7.7 s). It was concluded that the facilitation of [VO2 response during supra-LT exercise after prior heavy exercise does not seem to be caused by increased muscle temperature per se and its related factors.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Consumo de Oxigênio
/
Coxa da Perna
/
Exercício Físico
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Músculo Esquelético
/
Diatermia
Limite:
Adult
/
Humans
Idioma:
En
Revista:
Res Sports Med
Assunto da revista:
MEDICINA ESPORTIVA
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Japão