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Advisor(s)
Abstract(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.
Description
Keywords
Sports Biomechanics Dynamical systems Fatigue Performance
Citation
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
Publisher
Elsevier