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Utilize este identificador para referenciar este registo: http://hdl.handle.net/10314/3324

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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