Evolution of muscular oxygenation parameters during walking test in pre-term children : a pilot study - Handicap, Autonomie, Vieillissement, Activité, Environnement Accéder directement au contenu
Article Dans Une Revue The Journal of Pediatrics Année : 2020

Evolution of muscular oxygenation parameters during walking test in pre-term children : a pilot study

Résumé

Objective: To explore measures of peripheral muscular oxygenation, coupled to gait characteristics, between preterm and full-term children during a 6-minute walking test (6MWT). Study design: Prepubescent children performed a 6MWT. During the test, changes in muscular oxyhemoglobin, deoxyhemoglobin, and total hemoglobin were measured with Near-infrared spectroscopy technology, positioned on subjects' calves. Gait variables were monitored with the OptoGait system. Results: Forty-five children (33 full-term children and 12 preterm children, mean age, 4.9 ± 0.7 and 4.6 ± 0.9 years, respectively) participated in this study. Statistical analysis highlighted a decreased walking performance for preterm children, with significantly lower walking distance (P < .05) than children born full-term (405.1 ± 91.8 m vs 461.0 ± 73.3 m respectively; −9%). A concomitant increase of oxygen extraction (over the time course of Variation of desoxyhemoglobin) was observed from the third minute of the test (P < .05). No statistically significant difference was found for other near-infrared spectroscopy measures. Finally, the analysis of gait variables highlighted a group effect for walking speed (P < .05) and stride length (P < .01). Conclusions: Premature children showed decreased walking performance and greater change in peripheral muscular oxygen extraction, associated with slower walking speed and stride length. This may point to a muscular maladjustment and reduced functional capacities for children born preterm. These phenomena could be responsible for greater muscular fatigue.
Fichier principal
Vignette du fichier
jpeds.pdf (533.11 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03187497 , version 1 (02-04-2021)

Identifiants

Citer

Zoey Owen-Jones, Anaick Perrochon, Eric Hermand, Laure Ponthier, Laurent Fourcade, et al.. Evolution of muscular oxygenation parameters during walking test in pre-term children : a pilot study. The Journal of Pediatrics, 2020, 227, pp.142-148.e1. ⟨10.1016/j.jpeds.2020.07.082⟩. ⟨hal-03187497⟩
87 Consultations
151 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More