Determination of the velocity associated with the longest time to exhaustion at maximal oxygen uptake
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The so-called velocity associated with V˙O2max, defined as the minimal velocity which elicits V˙O2max in an incremental exercise protocol (v V˙ O2max), is currently used for training to improve V˙O2max. However, it is well known that it is not the sole velocity which elicits V˙O2max and it is possible to achieve V˙O2max at velocities lower and higher than v V˙ O2max. The goal of this study was to determine the velocity which allows exercise to be maintained the longest time at V˙O2max. Using the relationship between time to exhaustion at V˙O2max in the all-out runs at 90%, 100%, 120% and 140% of v V˙ O2max and distance run at V˙O2max, the velocity which elicits the longest time to exhaustion at V˙O2max (CV′) was determined. For the six subjects tested (physical education students), this velocity was not significantly different from v V˙ O2max (16.96 ± 0.92 km · h−1 vs 17.22 ± 1.12 km · h−1, P = 0.2 for CV′ and v V˙ O2max, respectively) and these two velocities were correlated (r = 0.88, P = 0.05).
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