Gulmans V A, de Meer K, Binkhorst R A, Helders P J, Saris W H
Dept of Pediatric Physiotherapy, University Hospital for Children, Utrecht, The Netherlands.
Eur Respir J. 1997 Jan;10(1):94-7.
Exercise performance is associated with physical development. For sick children, there is a need for parameters reflecting exercise performance, which should be easy to measure and should take their nutritional state into account. The aim of this study was to investigate the relationship between maximum work-load (Wmax) and body weight (BW) as well as fat-free mass (FFM) in healthy children performing an incremental maximum exercise test on a bicycle ergometer, and to develop reference values for Wmax corrected for nutritional state. A random sample of 158 children (77 boys and 81 girls), aged 12-18 yrs, underwent an incremental maximum exercise test on a bicycle ergometer. BW and FFM were also measured. Correlation analysis showed a significant association (p < 0.001) between BW and Wmax (boys: r = 0.82; girls: r = 0.73), and between FFM and Wmax (boys: r = 0.89; girls: r = 0.79). Two-way analysis of variance showed a significant effect of gender on variance of Wmax/BW ratio as well as Wmax/FFM ratio. The influence of age was significant for Wmax/FFM (p = 0.003), but not for Wmax/BW. The maximum workload/body weight ratio and the maximum workload/fat-free mass ratio are useful parameters of work capacity in bicycle exercise testing in children. The reference values (mean, SD, median, and percentiles) for boys and girls aged 12-18 years can be used to predict workload corrected for body composition in healthy and sick children.
运动表现与身体发育相关。对于患病儿童，需要有反映运动表现的参数，这些参数应易于测量且应考虑到他们的营养状况。本研究的目的是调查在自行车测力计上进行递增最大运动测试的健康儿童中，最大工作量（Wmax）与体重（BW）以及去脂体重（FFM）之间的关系，并制定针对营养状况校正后的Wmax参考值。对158名年龄在12至18岁的儿童（77名男孩和81名女孩）进行随机抽样，让他们在自行车测力计上进行递增最大运动测试。同时测量了BW和FFM。相关性分析显示BW与Wmax之间存在显著关联（p < 0.001）（男孩：r = 0.82；女孩：r = 0.73），以及FFM与Wmax之间存在显著关联（男孩：r = 0.89；女孩：r = 0.79）。双向方差分析显示性别对Wmax/BW比值以及Wmax/FFM比值的方差有显著影响。年龄对Wmax/FFM有显著影响（p = 0.003），但对Wmax/BW没有显著影响。最大工作量/体重比和最大工作量/去脂体重比是儿童自行车运动测试中工作能力的有用参数。12至18岁男孩和女孩的参考值（均值、标准差、中位数和百分位数）可用于预测健康和患病儿童经身体成分校正后的工作量。
