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Title: Relationships between energy cost, swimming velocity and speed fluctuation in competitive swimming strokes
Author: Barbosa, Tiago M.
Lima, F.
Portela, A.
Novais, D.
Machado, L.
Colaço, P.
Gonçalves, P.
Fernades, R.J.
Vilas-Boas, J.P.
Keywords: Competitive strokes
Energy expenditure
Energy cost
Speed fluctuation
Issue Date: 2006
Publisher: Universidade do Porto, Faculdade de Desporto
Citation: Barbosa, Tiago M.; Lima, F.; Portela, A.; Novais, D.; Machado, L.; Colaço, P.; Gonçalves, P.; Fernandes, R.J.; Vilas-Boas, J.P. (2006) - Relationships between energy cost, swimming velocity and speed fluctuation in competitive swimming strokes. In Revista Portuguesa de Ciências do Desporto. Porto: Universidade do Porto, Faculdade de Desporto. p. 192-194. ISSN 1645-0523
Abstract: The purpose of the study was to analyse relationships between total energy expenditure (Etot), energy cost (EC), intra-cycle variation of the horizontal velocity of displacement of centre of mass (dv) and mean swimming velocity (v). 17 Portuguese elite swimmers (4 at Freestyle, 5 at Backstroke, 4 at Breaststroke and 4 at Butterfly) were submitted to an incremental set of nx200-m swims. Bioenergetical and biomechanical parameters presented significant interrelationships. For pooled data, the relationship between Etot and v was r=0.59 (p<0.01), between EC and dv was r=0.38 (p<0.01) and the polynomial relationship, between dv and v was r=0.17 (p=0.28). Individual evaluation and identification of biomechanical critical points may help the swimmers to become more efficient at a certain swimming velocity.
Peer review: yes
ISSN: 1645-0523
Appears in Collections:DCDEF - Artigos em Proceedings Não Indexados ao ISI/Scopus

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