Research Article VO2 Kinetics and Metabolic Contributions Whilst Swimming at 95, 100, and 105 % of the Velocity at VO2max

Copyright © 2014 Ana C. Sousa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. A bioenergetical analysis of swimming at intensities near competitive distances is inexistent. It was aimed to compare the transient VO 2 kinetics responses and metabolic contributions whilst swimming at different velocities around VO 2max. 12 trained male swimmers performed (i) an incremental protocol to determine the velocity atVO 2max (vVO2max) and (ii) three squarewave exercises from rest to 95, 100, and 105 % of vVO 2max. VO2 was directly measured using a telemetric portable gas analyser and its kinetics analysed through a double-exponentialmodel.Metabolic contributionswere assessed through the sumof three energy components. No differences were observed in the fast component response