Artículos de revistas
Effects of exercise mode on the oxygen uptake kinetic response to severe-intensity exercise in prepubertal children
Fecha
2009-01-01Registro en:
Pediatric Exercise Science, v. 21, n. 2, p. 159-170, 2009.
1543-2920
0899-8493
10.1123/pes.21.2.159
2-s2.0-65949124682
Autor
Universidade Estadual Paulista (UNESP)
Institución
Resumen
The objective of this study was to verify the effect of the exercise mode on slow component of VO2 (VO2SC) in children aged 11-12 years during severe-intensity exercise. After determination of the lactate threshold (LT) and peak VO2 (VO2peak) in both cycling (CE) and running exercise (TR), fourteen active boys completed a series of square-wave transitions of 6-min duration at 75%Δ [75%Δ = LT + 0.75 x (VO2peak-LT)] to determine the VO2 kinetics. The VO2SC was significantly higher in CE (180.5 ± 155.8 ml·min-1) than in TR (113.0 ± 84.2 ml·min -1). We can conclude that, although a VO2SC does indeed develop during TR in children, its magnitude is considerably lower than in CE during severe-intensity exercise. © 2009 Human Kinetics, Inc.