Exercise testing in children: comparison ...
Type de document :
Article dans une revue scientifique: Article original
PMID :
URL permanente :
Titre :
Exercise testing in children: comparison in ventilatory thresholds changes with interval-training.
Auteur(s) :
Mucci, Patrick [Auteur]
Baquet, Georges [Auteur]
Nourry, Cédric [Auteur]
Deruelle, Fabien [Auteur]
Berthoin, Serge [Auteur]
Fabre, Claudine [Auteur]
Baquet, Georges [Auteur]
Nourry, Cédric [Auteur]
Deruelle, Fabien [Auteur]
Berthoin, Serge [Auteur]
Fabre, Claudine [Auteur]
Titre de la revue :
Pediatric Pulmonology
Nom court de la revue :
Pediatr Pulmonol
Numéro :
48
Pagination :
809-16
Date de publication :
2013-08-01
ISSN :
1099-0496
Mot(s)-clé(s) en anglais :
Child
Exercise
Exercise Test
Female
Humans
Male
Oxygen Consumption
Physical Fitness
Pulmonary Gas Exchange
Reference Values
aerobic fitness
healthy children
peak oxygen uptake
respiratory compensatory point
ventilation
Exercise
Exercise Test
Female
Humans
Male
Oxygen Consumption
Physical Fitness
Pulmonary Gas Exchange
Reference Values
aerobic fitness
healthy children
peak oxygen uptake
respiratory compensatory point
ventilation
Résumé en anglais : [en]
The aim of this investigation was, first, to examine comparatively the changes in first and second ventilatory thresholds (VT1 and VT2 ) and, secondly, to compare with peak oxygen uptake (${\dot {\rm {V}}}_{{\rm O}_{{\rm ...
Lire la suite >The aim of this investigation was, first, to examine comparatively the changes in first and second ventilatory thresholds (VT1 and VT2 ) and, secondly, to compare with peak oxygen uptake (${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $) changes following high-intensity interval training (HIT) in prepubescent children. Eighteen prepubescent children (aged 10.1 ± 0.7 years) performed an incremental exhaustive exercise on a cycle ergometer with pulmonary gas exchange measurements before and after an 8-week period. During this period, nine children (five girls and four boys; initial ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $: 39.6 ± 6.0 ml O2 · min(-1) · kg(-1) ) took part in a HIT and nine other children (three girls and six boys; initial ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $: 39.8 ± 7.8 ml O2 · min(-1) · kg(-1) ), considered as controls, were not trained. After the training period, VT1 , VT2 , and ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $ were significantly (P < 0.01) improved (21%, 24%, and 14%, respectively) without significant changes in the control group. However, the changes in VT1 (ΔVT1 = +4.35 ± 4.36 ml O2 · min(-1) · kg(-1) ), VT2 (ΔVT1 = +7.17 ± 5.17 ml O2 · min(-1) · kg(-1) ), ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $ ($\Delta {\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $ = +5.51 ± 4.17 ml O2 · min(-1) · kg(-1) ) induced by HIT in trained children were not related. In conclusion, for prepubescent children, in addition to VT1 and ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $, VT2 can also be significantly improved by training. Therefore, HIT represents a good way to obtain great improvement in these parameters in only 8 weeks. However, the time courses of these aerobic fitness parameters are dissociated, which implies the need to differentiate among them during aerobic fitness exercise testing.Lire moins >
Lire la suite >The aim of this investigation was, first, to examine comparatively the changes in first and second ventilatory thresholds (VT1 and VT2 ) and, secondly, to compare with peak oxygen uptake (${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $) changes following high-intensity interval training (HIT) in prepubescent children. Eighteen prepubescent children (aged 10.1 ± 0.7 years) performed an incremental exhaustive exercise on a cycle ergometer with pulmonary gas exchange measurements before and after an 8-week period. During this period, nine children (five girls and four boys; initial ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $: 39.6 ± 6.0 ml O2 · min(-1) · kg(-1) ) took part in a HIT and nine other children (three girls and six boys; initial ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $: 39.8 ± 7.8 ml O2 · min(-1) · kg(-1) ), considered as controls, were not trained. After the training period, VT1 , VT2 , and ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $ were significantly (P < 0.01) improved (21%, 24%, and 14%, respectively) without significant changes in the control group. However, the changes in VT1 (ΔVT1 = +4.35 ± 4.36 ml O2 · min(-1) · kg(-1) ), VT2 (ΔVT1 = +7.17 ± 5.17 ml O2 · min(-1) · kg(-1) ), ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $ ($\Delta {\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $ = +5.51 ± 4.17 ml O2 · min(-1) · kg(-1) ) induced by HIT in trained children were not related. In conclusion, for prepubescent children, in addition to VT1 and ${\dot {\rm {V}}}_{{\rm O}_{{\rm 2}} {\rm peak}} $, VT2 can also be significantly improved by training. Therefore, HIT represents a good way to obtain great improvement in these parameters in only 8 weeks. However, the time courses of these aerobic fitness parameters are dissociated, which implies the need to differentiate among them during aerobic fitness exercise testing.Lire moins >
Comité de lecture :
Oui
Audience :
Non spécifiée
Établissement(s) :
Université de Lille
Univ. Artois
Univ. Littoral Côte d’Opale
Univ. Artois
Univ. Littoral Côte d’Opale
Équipe(s) de recherche :
Activité Physique, Muscle, Santé (APMS)
Date de dépôt :
2021-11-14T10:47:22Z
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