Lima, FranciscoPortela, AnaSoares, SusanaGonçalves, PedroMachado, LeandroLima, António B.Barbosa, Tiago M.Keskinen, Kari L.Fernandes, Ricardo J.Vilas-Boas, João Paulo2011-05-052011-05-052006Lima, F.; Portela, A.; Magalhães, J.; Gonçalves, P.; Machado, L.; Lima, A.B.; Barbosa, Tiago M.; Keskinen, K.L.; Fernandes, R.J.; Vilas-Boas, J.P. (2006). Energy cost and intra-cyclic variation of the velocity of the centre of mass in backstroke. In Revista Portuguesa de Ciências do Desporto. Porto1645-0523http://hdl.handle.net/10198/4168The purpose of the present study was to analyse the relationship between energy cost (C) and intra-cyclic speed fluctuations(dv) in breaststroke.engconference object