[Modalities of the hyperventilation of exercise in maximal triangular effort on the ergometry bicycle in 11-to-13-year-old boys].
Tidal volume, respiratory frequency, ventilatory equivalent, mean inspiratory flow Vt/Ti, and respiratory timing Ti/Ttot were measured at each level of an incremental exercise in a group of 8 untrained boys. Breathing pattern of the child is characterized by a fast frequency and a small tidal volume. Ventilation at maximal exercise reaches 50% of adults mean value. For the same ventilation, Vt/Ti (when expressed in ml X mn-1 X kg-1) is higher in the child. That suggests a higher central inspiratory activity.
D000293:Adolescent; D002648:Child; D005080:Exercise Test; D006801:Humans; D008297:Male; D008451:Maximal Voluntary Ventilation; D012123:Pulmonary Ventilation; D013990:Tidal Volume
Modalités de l'hyperventilation d'exercice lors d'un effort triangulaire maximal sur bicyclette ergométrique chez des garçons de 11 à 13 ans.