耐力训练对不同性别儿童最大吸氧量的影响

Influence on Endurance Traing to VO_2 max of Different Gender Children

此研究对象由24名11～12岁青春期前的儿童组成，其目的是为了探讨一个为期10W的有氧训练计划对青春期前儿童有氧能力的影响，尤其是对不同性别儿童的最大吸氧量（VO2max）影响。训练组经过10W的有氧训练后，VO2max得到了明显的增加，这种增加在女童中更为明显。VO2max增加的比例和初始VO2max（ml．min^-1）水平之间存在显著相关。研究结果显示，青春期前的儿童经过一段时间的有氧训练后，VO2max能得到增加，如果考虑到初始有氧能力水平，那么男女孩VO2max的增加将不存在显著差异。

The aim of the present study was to investigate the effect of a 10-week endurance-trainlng program on the aerobic potential of prepubertal children and particularly on the maximal oxygen uptake according to gender. The subjects consisted of 24 prepubertal children： 12 served as an experimental group（TG） and 12 served as a control group（CG）. Each subject carried out a test on a bicycle ergometer in order to evaluate VO2max before and after 10-week of aerobic training for TG and normal life for CG. The training was predominandy aerobic and consisted of interval training and continuous long distance running. The major finding of present study is a significant increase of VO2max as a result of the 10-week endurance training program in TG. Such an increase was however higher in girls than in boys. A significant relationship was obtained between the percentage of VO2max increase after training and initial VO2max. Whatever the group, VO2max was significantly higher in boys than in girls. The present longitudinal study shows that VO2max can increase in prepubertal children after an aerobic training program and such an increase is the same in boys and girls when the initial aerobic fitness is taken into account.