Biomechanics and Medicine in Swimming XI

BiomechanicsandmedicineinswimmingXi
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AcKnoWledGeMents
The authors wish to thank the “Ministère de la Jeunesse, des Sports et
de la Vie Associative” and the “Fédération Française de Natation” for
financing this study. The authors also wish to thank Frédéric Frontier,
Frédéric Clerc, Isabelle Amaudry and the “INSEP” for logistic support,
and Jean-Lyonel Rey, Stéphane Lecat, Eric Boissière and Yves Thomassin
for their contributions.
74
Relationship between Arm Coordination and Energy
Cost in Front Crawl Swimming
Fernandes, r.J. 1 , Morais, P. 1 , Keskinen, K.l. 2 , seifert, l. 3 ,
chollet, d. 3 , Vilas-Boas, J.P. 1
1 University of Porto, Faculty of Sport, Cifi2d, Portugal
2 Finnish Society of Sport Sciences, Finland
3 University of Rouen, Faculty of Sport Sciences, France
The aim of the study was to assess the relationship between the Index of
Coordination (IdC) and the Energy Cost of exercise (C) in front crawl
swimming. Seven high level swimmers performed a paced intermittent
incremental protocol of 7 × 200 m (0.05 m.s -1 increments, 30 s intervals),
until maximal oxygen consumption intensities. IdC was assessed as the
time gap between the propulsion of the two arms. Oxygen consumption
was measured through direct breath×breath oximetry and lactate analyses
were conducted at rest, in the intervals and at the end of exercise.
Along the protocol, concomitant with the velocity raise, both C and IdC
increased (r=0.98 and r=0.99, p