Effet de 4 semaines d'entraînement sur le temps limite à V̇O2max

Translated title of the contribution: Effect of 4 weeks' training in running over the time limit at V̇O 2max

Richard Heubert*, Valéry Bocquet, Jean Pierre Koralsztein, Véronique Billat

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

14 Citations (Scopus)


The purpose of this study was to examine the effect of 4 weeks training in running on the time spent at V̇O2max (tlim V̇O 2max). Eight athletes carried out, before and after an aerobic training, an incremental and five exhaustive tests at 90, 95, 100, 115% vV̇O2max and at the critical power at V̇O2max (CV'; slope of the linear relation between the tlim V̇O2max and the distance limit at V̇O2max). This training did not significantly improve V̇O2max (p = 0.17) or tlim V̇O 2max (p = 0.72). However, the "tlim V̇O2max- intensity" curve was shifted toward the right, meaning that the athlete had to run at a higher intensity after training to obtain the same tlim V̇O2max. Tlim V̇O2max at CV' before training was significantly higher than tlim V̇O2max at 90, 95, 100, and 115% vV̇O2max (p < 0.05). This training increased CV' in absolute value (13.9 ± 1.3 vs. 14.9 ± 1.2 km·h-1, p < 0.05; n = 6) but not in relative value (86 ± 4 vs. 86 ± 5% vV̇O2max; p = 0.9). In conclusion, in spite of the shift of the "tlim V̇O2max-intensity" curve, tlim V̇O 2max was not significantly increased by this training. Furthermore, CV' allowed subjects to spend the longest time of exercise at V̇O 2max during a continuous exercise with constant speed, but CV', expressed in % vV̇O2max, did not improve with this training.

Translated title of the contributionEffect of 4 weeks' training in running over the time limit at V̇O 2max
Original languageFrench
Pages (from-to)717-736
Number of pages20
JournalCanadian Journal of Applied Physiology
Issue number5
Publication statusPublished - Oct 2003
Externally publishedYes


  • Oxygen kinetics
  • Performance
  • Time limit at V̇Omax
  • Time to reach V̇Omax


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