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

Respiratory responses and rating of perceived exertion of severely obese adolescents during continuous and intermittent graded walking protocols: Application to cardiorespiratory field tests.

Abstract : During 20 m shuttle tests, obese adolescents may have difficulty achieving maximum cardiorespiratory performance due to the presence of braking-relaunch phases (BRP). Nineteen obese adolescents aged 15.2 ± 1.5 years (body mass index [BMI] = 39.7 ± 5.9 kg.m) performed three graded walking exercises on a 50 m track at speeds between 3 and 6 km/h: a continuous-straight-line protocol (C), a continuous protocol that required turning back every 30 sec (C-BRP) and an intermittent protocol that consisted of successively walking then resting for 15 sec (15-15). Oxygen uptake (VO), aerobic cost of walking (Cw), ventilation (VE) and rating of perceived exertion (RPE) were measured at each stage during the protocols. During C-BRP, the responses were not significantly higher compared with C (p > 0.30). During 15-15, the VO, Cw and VE were ~ 15 to 25% lower than during C beginning at 4 km/h (p < 0.05). In obese adolescents, the respiratory impact of sudden directional changes during the 20 m shuttle-type test appeared to be minor at walking speeds. During the 15-15 test, the intensity increases more progressively, and this design may encourage obese adolescents to walk further than during a continuous test.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [52 références]  Voir  Masquer  Télécharger

https://hal.univ-lille.fr/hal-02509042
Contributeur : Lilloa Université de Lille <>
Soumis le : lundi 16 mars 2020 - 13:42:07
Dernière modification le : jeudi 28 mai 2020 - 03:33:40

Fichier

2020_Toulouse_J Sports Sci.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Louis Toulouse, Georges Baquet, Elsa Heyman, Thierry Peze, Serge Berthoin, et al.. Respiratory responses and rating of perceived exertion of severely obese adolescents during continuous and intermittent graded walking protocols: Application to cardiorespiratory field tests.. Journal of Sports Sciences, Taylor & Francis: SSH Journals, In press, ⟨10.1080/02640414.2020.1738701⟩. ⟨hal-02509042⟩

Partager

Métriques

Consultations de la notice

125