Barbosa, Tiago M.Lima, António B.Portela, AnaNovais, DanielMachado, LeandroColaço, PauloGonçalves, PedroFernandes, Ricardo J.Keskinen, Kari L.Vilas-Boas, João Paulo2011-04-152011-04-152006Barbosa, Tiago M.; Lima, A.B.; Portela, A.; Novais, D.; Machado, L.; Colaço, P.; Gonçalves, P.; Ferndes, R.J.; Keskinen, K.L.; Vilas-Boas, J.P. (2006). Relationship between energy cost, swimming velocity, speed fluctuation in competitive swimming strokes. In Revista Portuguesa de Ciências do Desporto. Porto1645-0523http://hdl.handle.net/10198/4064The purpose of this study was to analyse the relationships between the total energy expenditure ( tot), the energy cost (EC), the intra-cycle variation of the horizontal velocity of displacement of centre of mass (dv) and the mean swimming velocity (v) in the four competitive swimming strokes.engconference object