Is stroke smoothness a reliable indicator of fatigue in ergometer rowing?
Deutscher übersetzter Titel: | Ist die Schlaggleichmäßigkeit ein reliabler Indikator der Erschöpfung beim Ergometerrudern? |
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Autor: | Caplan, Nicholas; Gardner, Trevor N. |
Erschienen in: | Sports engineering |
Veröffentlicht: | 11 (2009), 4, S. 207-209, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1369-7072, 1460-2687 |
DOI: | 10.1007/s12283-009-0024-5 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201012009404 |
Quelle: | BISp |
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. Verf.-Referat