The changes in fractal dimension after a maximal exertion in swimming

Barbosa, Tiago M.; Chen, Simin; Forte, Pedro; Morais, J.E.

http://hdl.handle.net/10198/14065

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Abstract(s)

Quite often linear variables are not sensitive enough to explain the changes in the motor behavior of elite athletes. So, non-linear variables should be selected. The aim was to compare the fractal dimension before and after a maximal bout swimming front-crawl. Twenty-four subjects performed an all-out 100m trial swimming front-crawl. Immediately before (Pre-test) and after the trial (Post-test) a speed-meter cable was attached to the swimmer’s waist to measure the hip speed from which fractal dimension was derived. The fractal dimension showed a significant decrease with a moderate effect size between pre- and post-tests. Twenty-one out of 24 swimmers decreased the fractal dimension. As a conclusion, there is a decrease in the fractal dimension and hence in the swimming behavior complexity being under fatigue after a maximal trial.

Keywords

Swimming Non-linear prameters Locomotion Fatigue System’s complexity

URI

http://hdl.handle.net/10198/14065

Citation

Barbosa, Tiago M.; Chen Simin; Forte, Pedro Miguel Gomes; Morais, J.E. (2016). The changes in fractal dimension after a maximal exertion in swimming. In Proceedings of the 1st International Conference on Technology and Innovation in Sports, Health and Wellbeing. Vila Real: UTAD. ISBN 978-1-5090-5727-6