| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 1.88 MB | Adobe PDF |
Orientador(es)
Resumo(s)
The purpose of this study was to assess the maximum oxygen
uptake (V̇
O2max), the total metabolic energy expenditure (_Etot), and
the energy cost (C) measured as the speed of V̇
O2max in swimmers
with physical impairments. Eleven swimmers performed an Nx200-
m front crawl test from a low to all-out speed and data were
obtained at maximum aerobic power. The oxygen uptake was
measured breath-by-breath by a telemetric gas exchange system.
The _Etot was calculated from the aerobic and anaerobic pathways
at maximal intensity. The C was obtained by the ratio of the _Etot
and the mean swimming speed. The V̇
O2max was 38.2 ± 8.3 mL.kg.
min−1, the _E tot was 191.9 ± 51.7 kJ, and the C was 0.8 ± 0.2 kJ.m−1.
The energy contribution of the aerobic pathway was higher
(p < 0.001) than that of both the anaerobic pathways, which
were similar (p > 0.05). There was no gender effect on the results
of the energy contributions (p > 0.05). The anaerobic lactic pathway
contribution was higher in male than in female swimmers
(p < 0.05). The V̇
O2max and C were higher in swimmers who were
less affected by physical impairment. The energy contribution of
the aerobic pathways was similar for males and females.
Descrição
Palavras-chave
Swimming Aerobic power Energetics Anaerobic contribution Physiological profile
Contexto Educativo
Citação
Feitosa, W.G.; Barbosa, Tiago M.; Correia, Ricardo de Assis; Castro, Flávio Antônio (2019). Maximal oxygen uptake, total metabolic energy expenditure, and energy cost in swimmers with physical disabilities. International Journal of Performance Analysis in Sport. ISSN 2474-8668. 19:4, p. 503-516