Reproductibilite du deficit maximal en oxygene (DO(2max)) en fonction de l'expertise en course a pied

Abstract

Aim. - The aim of this study was to test the reproductibility of maximal accumulated oxygen deficit according to running experience. Subjects and methods. - The study was conducted on 18 subjects: nine experienced long distance runners and nine novice runners. Each subject completed five treadmill testing protocols over 3 weeks. The first and the last tests involved a V̇O(2max) protocol. The others tests were three supramaximal runs selected to represent 130% of the speed reached with V̇O(2max) (V(max)) during the first protocol. The supramaximal tests were based on the measurement of maximal accumulated oxygen deficit (MAOD), time to exhaustion (tlim) and peak lactate (L(max)). Results and discussion. - The main result of this study was that, using the same methodology, no short term variability was found for MAOD or L(max), whereas a significant effect of experience was found for tlim variability. Furthermore, MAOD seems to be the more stable parameter. However, no significant differences were found in MAOD values between the two groups and no relation was observed between MAOD and others anaerobic indicators. Despite this stability of MAOD, these results are in agreement with previous studies pointing out the difficulty to associate MAOD and anaerobic solicitation.