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

Respiratory muscle endurance, oxygen saturation index in vastus lateralis and performance during heavy exercise

Abstract : The purpose of this study was to investigate the relationships between respiratory muscle endurance, tissue oxygen saturation index dynamics of leg muscle (TSI) and the time to exhaustion (TTE) during high intensity exercise. Eleven males performed a respiratory muscle endurance test, a maximal incremental running field test (8 km h(-1) + 0.5 km h(-1) each 60 s) and a high-intensity constant speed field test at 90% VO2max. The TSI in vastus lateralis was monitored with near-infrared spectroscopy. The TSI remained steady between 20 and 80% of TTE. Between 80 and 100% of TTE (7.5 +/- 6.1%, p < 0.05), a significant drop in TSI concomitant with a minute ventilation increase (16 +/- 10 l min(-1)) was observed. Moreover, the increase of ventilation was correlated to the drop in TSI (r = 0.70, p < 0.05). Additionally, respiratory muscle endurance was significantly correlated to TSI time plateau (20-80% TIE) (r = 0.83, p <0.05) and to TTE (r = 0.95, p<0.001). The results of the present study show that the tissue oxygen saturation plateau might be affected by ventilatory work and that respiratory muscle endurance could be considered as a determinant of performance during heavy exercise. (C) 2016 Elsevier B.V. All rights reserved.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-u-picardie.archives-ouvertes.fr/hal-03594554
Contributeur : Louise Dessaivre Connectez-vous pour contacter le contributeur
Soumis le : mercredi 2 mars 2022 - 16:48:54
Dernière modification le : lundi 4 avril 2022 - 14:42:02

Identifiants

Collections

Citation

Ferid Oueslati, Jan Boone, Said Ahmaidi. Respiratory muscle endurance, oxygen saturation index in vastus lateralis and performance during heavy exercise. RESPIRATORY PHYSIOLOGY & NEUROBIOLOGY, 2016, 227, pp.41-47. ⟨10.1016/j.resp.2016.02.008⟩. ⟨hal-03594554⟩

Partager

Métriques

Consultations de la notice

1