Is stroke smoothness a reliable indicator of fatigue in ergometer rowing?

Caplan, Nick and Gardner, Trevor (2009) Is stroke smoothness a reliable indicator of fatigue in ergometer rowing? Sports Engineering, 11 (4). pp. 207-209. ISSN 1369-7072

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Official URL: http://dx.doi.org/10.1007/s12283-009-0024-5

Abstract

A measure of stroke smoothness (SS) has been presented previously to indicate the degree to which rowers produce an ‘‘ideal’’ handle force profile that of the positive half of a sine wave [2]. This study aimed to determine the influence of fatigue on SS. Ten male rowers completed a maximal intensity trial. Fast Fourier transform methods were used to calculate SS which was given by the amplitude of the fundamental frequency as a percentage of the sum of the first ten peaks. Visual inspection of the data showed indications of a reduction in movement coordination as a function of fatigue. However, SS did not change significantly between the first, middle and last ten strokes (p = 0.205), despite a 21% reduction in mean power between the start and end of the trial. The results suggested that although the shape of the force profile can qualitatively indicate a reduction in movement coordination, the smoothness of the force profiles remains similar with fatigue.

Item Type: Article
Uncontrolled Keywords: Fourier analysis, biomechanics, sport, kinetics
Subjects: C600 Sports Science
Department: Faculties > Health and Life Sciences > School of Life Sciences > Sport, Exercise and Rehabilitation
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Depositing User: EPrint Services
Date Deposited: 25 Feb 2011 14:05
Last Modified: 10 Aug 2015 11:44
URI: http://nrl.northumbria.ac.uk/id/eprint/1764

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