Arngrimsson Sigurbjorn Arni, Sveinsson Torarinn, Jóhannsson Erlingur
Center for Sport and Health Sciences, Iceland University of Education, 840 Laugarvatn, Iceland.
Pediatr Exerc Sci. 2008 Feb;20(1):62-73. doi: 10.1123/pes.20.1.62.
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)].
本研究的目的是验证一个已用于预测峰值摄氧量（VO2peak）的方程，如果该方程无效，则开发一个新的方程，根据自行车测力计测试的表现来预测VO2peak。45名9岁和15岁的儿童进行了VO2peak测试，并被随机分为开发组（DEV）和交叉验证组（C-V）。正在验证的方程需要静息能量消耗（REE）的相关知识，该方程低估了VO2peak（p < 0.05），但一旦用在DEV组中计算出的一个新参数进行调整，它就具有良好的交叉验证效果（rYY' = 0.98，SE = 0.18 L·min-1）。在DEV组中建立的不使用REE的新预测方程的准确性在C-V组中得到了证实（rYY' = 0.98，SE = 0.17 L·min-1），并且斜率和截距与恒等线无差异（p < 0.05）。基于整个样本的方程[VO2peak = -1.5986 + 0.0115·（最大功率输出）+ 0.0109·（体重）+ 0.1313·（性别）+ 0.0085·（最大心率）]可以很好地预测学童的VO2peak。
