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Time limit at VO2max velocity in elite crawl swimmers
Ricardo Fernandes; Kari Keskinen; Paulo Colaço; Ana Querido; Leandro Machado; Pedro Morais; Daniel Novais; Daniel Marinhohe purpose of this study is to assess, with elite crawl swimmers, the time limit at the minimum velocity corresponding to maximal oxygen consumption (TLim-vVO2max), and to characterize its main determinants. Eight subjects performed an incremental test for vVO2max assessment and, forty-eight hours later, an all-out swim at vVO2max until exhaustion. VO2 was directly measured using a telemetric portable gas analy...
The influence of stroke mechanics into energy cost of elite swimmers
Tiago Barbosa; Ricardo Fernandes; Kari Keskinen; João Paulo Vilas Boas Soares CamposThe purpose of this study was to analyze the relationships between energy cost (C), swimming velocity (v), stroke frequency (SF) and stroke length (SL) in toplevel swimmers. Eighteen elite swimmers (four freestylers, five backstrokers, five breaststrokers and four butterflyers) performed an intermittent set of n 9 200 m swims (n B 8) with increasing velocity. The oxygen consumption was measured breath-by-breath...
Behaviour of the kinematic parameters during a time to exhaustion test at VO2ma...
Daniel Marinho; João Paulo Vilas Boas; Kari Keskinen; Ferran Rodriguez; Susana Soares; Carla Carmo; Sónia Vilar; Ricardo FernandesThe aim of this study was to analyse, in swimming-pool conditions, the behaviour of the kinematic parameters – stroke rate (SR), stroke length (SL) and stroke index (SI) - during a time to exhaustion test performed at the minimum velocity that elicits maximal oxygen uptake (TLim-v O2max) in elite freestyle swimmers. Eleven swimmers from the National Portuguese Swimming Team (5 male and 6 female) performed...
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