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Título: | A mechanical speedo-meter to assess swimmer’s intra-cyclic velocity: validation for breaststroke and butterfly stroke. |
Autores: | Feitosa, Welington Costa, Mário Morais, Jorge Garrido, Nuno Silva, António Lima, António Barbosa, Tiago |
Data: | 2013 |
Editora: | International Society of Biomechanics in Sports |
Citação: | FEITOSA WG, COSTA MJ, MORAIS JE, GARRIDO ND, SILVA AJ, LIMA AB, BARBOSA TM (2013) A mechanical speedo-meter to assess swimmer’s intra-cyclic velocity: validation for breaststroke and butterfly stroke. Proceedings of the 31st International Society of Biomechanics in Sports Conference. Taipei, Taiwan. |
Resumo: | The aim was to validate a system for the assessment of horizontal intra-cyclic velocity while swimming the breaststroke and butterfly stroke. 12 boys and 11 girls with at least 4-y of experience participating in regional and national level competitions undertook a set of maximal 2x25 m swims (Breaststroke and Butterfly stroke). The speedo-meter cable was attached to the subject’s hip and data was acquired on-line. At the same time, subjects were recorded in the sagital plane with an underwater video camera enabling the hip to be digitized. The following were analyzed the : (i) maximal velocity; (ii) minimal velocity; (iii) difference between maximal and minimal velocity; (iv) coefficient of variation. There were no significant differences for the mean values between methods, except for the coefficient of variation (p<0.05). Linear regression models where very highwere highly related. More than 80% of the Bland-Altman plots were with within the 1.96 standard-deviation criteria used on regular basis as a rule of thumb for techniques validation. |
URI: | http://hdl.handle.net/10314/3324 |
Aparece nas Colecções: | Artigos em Acta de Conferência Internacional (ESECD)
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Ficheiros deste Registo:
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Descrição |
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2013 Feitosa et al - ISBS.pdf | | 380Kb | Adobe PDF | Ver/Abrir | |
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