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身体工作能力实验，即心率在１７０次／分时的身体工作负荷水平，已被广泛用作评价运动员最大摄氧量的指标。但身体工作能力实验（ＰＷＣ１７０）在评价少年儿童最大摄氧量方面的精确度还一直未被充分定值。本研究让３５个少年儿童（１８个男性，１７个女性，平均年龄分别为１０．５岁和９．９岁）进行了功率自行车上的最大负荷实验，以此来评价最大摄氧量（ＶＯ２ｍａｘ）和ＰＷＣ１７０之间的关系。测量结果以绝对数值表示时，两者相关较强（相关系数分别为０．７１和０．７０，前者为女性的）。但当测量结果以每公斤体重（即相对数值）来表示时，ＶＯ２ｍａｘ和ＰＷＣ１７０的相关强度大大下降（女性和男性少年的相关系数分别为０．６５和０．４８）．由ＶＯ２ｍａｘ对ＰＷＣ１７０的回归方程算出的ＶＯ２ｍａｘ数值与实际测得的ＶＯ２ｍａｘ值相比，平均误差女性为３．４ｍｌ／ｋｇ·ｍｉｎ，男性为２．８ｍｌ／ｋｇ·ｍｉｎ。这些结果表明：由ＰＷＣ１７０推算ＶＯ２ｍａｘ来评价有氧能力基本上是可靠的，但由于变化范围太广，在同一标准差下误差可达１０－１５％，因此ＰＷＣ１７０只能用作对ＶＯ２ｍａｘ的粗略估计，不能用来准确评价少年儿童的最大有氧工作水平，特别是在运动员选材过程中。
The physical work ability test, that is, the body workload level with a heart rate of 170 bpm, has been widely used as an indicator to evaluate the maximum oxygen uptake of athletes. However, the accuracy of PWC170 in assessing the maximum oxygen uptake of children and adolescents has not been adequately defined. In this study, 35 children (18 males and 17 females, mean age 10.5 years and 9.9 years, respectively) were subjected to maximum load on power bicycles to assess the maximum oxygen uptake (VO2max ) And PWC170. When the measurement results are expressed as absolute values, the correlation between the two is strong (correlation coefficient is 0.71 and 0.70 respectively, the former is female). However, the correlation between VO2max and PWC170 was significantly reduced when measurements were expressed in terms of body weight per kg (ie, relative values) (correlation coefficient of 0.65 and 0.48 for females and males, respectively). The VO2max values calculated from the regression equation of VO2max to PWC170 were 3.4ml / kg · min for women and 2.8ml / kg · min for women compared with the actual VO2max values. These results show that aerobic assessment of VO2max by PWC170 is largely reliable, but PWC170 can only be used as a rough estimate of VO2max due to a wide range of variations that can be as much as 10-15% with the same standard deviation. Can not be used to accurately assess the maximum aerobic work of children, especially in the selection of athletes.