Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Critical velocity during continuous and intermittent exercises in children

Abstract : The purpose of this study was to apply the "critical velocity" concept to short intermittent high-intensity running exercises in prepubescent girls and boys, and to compare running performances obtained either by intermittent or continuous exercise runs. Eleven 8 to 11-year- old children underwent a maximal graded field test to determine peak oxygen uptake (peakVO2) and maximal aerobic velocity (MAV). During the six following sessions, they randomly performed three continuous runs (90%, 100%, and 110% of MAV) and three intermittent runs (120%, 130%, and 140% of MAV) until exhaustion. Intermittent exercises consisted of repeated 15-s runs each one separated by a 15-s passive recovery interval. For continuous as well as for intermittent exercises, distance versus time to exhaustion (TTE) relationships were calculated to determine continuous (CVc) and intermittent (CVi) critical -1 -1 -1 velocities. Values for peakVO2, and MAV were 45.8±5.3 ml.kg .min and 10.5±1.0 km.h , respectively. For the whole population, a significant relationship was found between distance to exhaustion and TTE for continuous (r2=0.99, p<0.05) and intermittent exercises (r2=0.99, p<0.05). Significant relationships were found between peakVO2 and both CVc (r2=0.60, p<0.01) and CVi (r2=0.47, p<0.05). In conclusion, as for continuous exercises, a linear relationship was found between DTE and TTE for short high-intensity intermittent exercises. CVc was significantly related to peakVO2, while a significant lower relationship was found between peakVO2 and CVi.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [30 références]  Voir  Masquer  Télécharger

https://hal.univ-lille.fr/hal-02394032
Contributeur : Lilloa Université de Lille <>
Soumis le : mercredi 4 décembre 2019 - 16:00:59
Dernière modification le : vendredi 16 octobre 2020 - 09:38:01
Archivage à long terme le : : jeudi 5 mars 2020 - 21:53:21

Fichier

Berthoin#3.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Serge Berthoin, Georges Baquet, Gregory Dupont, Emmanuel van Praagh. Critical velocity during continuous and intermittent exercises in children. European Journal of Applied Physiology, Springer Verlag, 2006, European Journal of Applied Physiology, 98 (2), pp.132-138. ⟨10.1007/s00421-006-0253-2⟩. ⟨hal-02394032⟩

Partager

Métriques

Consultations de la notice

58

Téléchargements de fichiers

199