Peak oxygen uptake in children: evaluation of an older prediction method and development of a new one.
The purpose of this study was to validate an equation that has been used to predict peak oxygen uptake (VO2peak) and, if invalid, to develop a new equation predicting VO2peak from performance on a cycle ergometer test. Forty-five 9- and 15-year-old children underwent a VO2peak test and were randomized into developmental (DEV) and cross-validation (C-V) groups. The equation under validation, which requires knowledge of resting energy expenditure (REE), underestimated VO2peak (p < .05), but once adjusted with a new parameter calculated in DEV, it cross-validated well (rYY' = .98, SE = .18 L . min-1). The accuracy of a new prediction equation built in DEV, not using REE, was confirmed in C-V (rYY' = .98, SE = .17 L . min-1) and the slope and intercept were not different from the line of identity (p < .05). VO2peak in schoolchildren can be predicted with good accuracy from an equation based on the whole sample [VO2peak = -1.5986 + 0.0115 . (maximal power output) + 0.0109 . (mass) + 0.1313 . (gender) + 0.0085 . (maximal heart rate)].
Arngrimsson
Sigurbjorn Arni
SA
Center for Sport and Health Sciences, Iceland University of Education, 840 Laugarvatn, Iceland.
Sveinsson
Torarinn
T
Jóhannsson
Erlingur
E
D000293:Adolescent; D000367:Age Factors; D001642:Bicycling / Q000502:physiology*; D002648:Child; D002669:Child Welfare; D004734:Energy Metabolism; D016552:Ergometry; D005260:Female; D006304:Health Status; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology*