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Orientador(es)
Resumo(s)
The aim was to assess the effect of fatigue on linear and nonlinear parameters in swimming.
Twenty-four fitness-oriented swimmers performed a maximal bout of 100m at front-crawl to
elicit fatigue. Before (pre-) and immediately after (post-test) the bout, participants swam an allout
25m to derive the speed fluctuation (dv), approximate entropy (ApEn) and fractal dimension
(FD) from the speed-time series collected by a speedo-meter. Swim speed was 10.85% slower in
the post-test than in the pre-test (p < .001, η2=0.72). There was an effect of the fatigue on the
dv with a moderate effect size. The dv increased shifting the 95CI band from 0.116–0.134 to
0.140–0.161. The ApEn showed non-significant variations between the pre- and post-test having
the 95CI of pre- and post-test overlapped (pre: 0.659–0.700; post: 0.641–0.682). The FD showed
as well a significant variation (the 95CI moved from 1.954–1.965 to 1.933–1.951). It can be
concluded that in swimming there are changes in classical and nonlinear parameters under fatigue.
Descrição
Palavras-chave
Sports Biomechanics Dynamical systems Fatigue Performance
Contexto Educativo
Citação
Barbosa, Tiago M.; Simin, Chen; Morais, J.E. Morais, M.J. Costa; Batalha, Nuno (2018). The changes in classical and nonlinear parameters after a maximal bout to elicit fatigue in competitive swimming. Human Movement Science. ISSN 0167-9457, p. 321-329
Editora
Elsevier