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Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/4127

Título: Validation of a cable speedometer for butterfly evaluation
Autor: Morouço, P.
Lima, A.B.
Semblano, P.
Fernandes, Daniel
Gonçalves, P.
Sousa, F.
Fernandes, R.J.
Barbosa, Tiago M.
Velhote, M.C.
Vilas-Boas, J.P.
Palavras-chave: Swimming
Biomechanics
Velocity
Images processing
Speedometer
Issue Date: 2006
Editora: Universidade do Porto, Faculdade de Desporto
Citação: Morouço, P.; Lima, A.B.; Semblano, P.; Fernandes, D.; Gonçalves, P.; Sousa, F.; Fernandes, R.J.; Barbosa, Tiago M.; Velhote, M.C.; Vilas-Boas, J.P. (2006) - Validation of a cable speedometer for butterfly evaluation. In Revista Portuguesa de Ciências do Desporto. Porto: Universidade do Porto, Faculdade de Desporto. p. 236-239. ISSN 1645-0523
Resumo: Getting fast results from the evaluation of swimmers is one of the most important goals to achieve with technological development in the field. The purpose of this study was to validate a real-time velocimetric device (speedometer) through the comparison of their results with computer assisted videogrametry. The sample included 7 international level swimmers (3 females and 4 males). Each swimmer performed four 25m trials, two at 200m race pace and two at 50m race pace. For each trial, two stroke cycles were studied, resulting on a total of 28 cycles SWIMMING EVALUATION, ADVICE AND BIOFEEDBACK Rev Port Cien Desp 6(Supl.2) 201–282 237 analysed. Hip v(t) curves obtained from speedometer and videogrametry were compared, as well as the speedometer hip curve with the one of the centre of mass (CM). The higher mean correlation obtained was between vhip1 and vhip2 (0.955±0.028), followed by vhip1 with vCM (0.920±0.049). The lower correlation was vhip2 vs. vCM (0.878±0.053). It was concluded that the speedometer is a reliable, fast and interactive tool for training advice.
Arbitragem científica: yes
URI: http://hdl.handle.net/10198/4127
ISSN: 1645-0523
Appears in Collections:DCDEF - Artigos em Proceedings Não Indexados ao ISI/Scopus

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