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Ventilatory Threshold and Maximal Oxygen Uptake in Present Triathletes

Publication: Canadian Journal of Applied Physiology
April 2000

Abstract

The aim of this study was to determine the physiological profile of young triathletes who began triathlon competition as their first sport. Twenty-nine male competitive triathletes (23 regionally and nationally ranked triathletes and 6 elite, internationally ranked triathletes) performed two tests, one on a cycle ergometer and one on a treadmill Results showed (a) no difference between CE and TM in the triathletes (69.1 ± 7.2 vs. 70.2 ± 6.2 mL•kg−1•min−1, respectively), (b) values of CE and TM in elite triathletes (75.9 + 5.2 and 78.5 ± 3.6 mL•kg−1•min−1, respectively) that were comparable to those reported in elite single-sport athletes in these specialities, and (c) although the ventilatory threshold (Thvent) was similar in CE and TM. TM Thvent was consistently lower for triathletes than TM Thvent usually reported for runners. Key Words: triathlon, cross-training adaptations, elite triathletes

Résumé

Le but de cette étude était de déterminer le profil physiologique de jeunes triathlètes qui ont choisi le triathlon comme premier sport de compétition. En tout, 29 triathlètes masculins ont participé à cette étude (23 de niveau régional ou national et 6 de niveau international, i.e., élite). Ils ont effectué deux tests d'exercice maximal, l'un sur tapis roulant (TM), l'autre sur cycloergométre (CE). Les résultats sont que (a) il n'existe pas de différence significative entre les valeurs de relevées sur TM et CE: (b) les valeurs de relevées chez les triathlètes d'élite sont comparables à celles relevées chez des coureurs ou des cyclistes d'élite; et (c) les seuils ventilatoires sont similaires en CE et en TM, mais le seuil ventilatoire en TM est significativement plus faible chez les triathlètes que chez les coureurs des cyclistes d'elite; et (c) les seuils ventilatoires sont similaires en CE et en TM, mais le seuil ventilatoire en TM est significativement plus faible chez les triathlètes que chez coureurs do meme niveau. Mots-clés: triathlon, effets-croise, triathletes elites

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cover image Canadian Journal of Applied Physiology
Canadian Journal of Applied Physiology
Volume 25Number 2April 2000
Pages: 102 - 113

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Version of record online: 25 January 2011

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