由于对从事极限下强度跑的不同年龄的女少年发展耐力的规律性研究得尚不够,所以对她们发展耐力素质的年龄分期问题也缺乏研究,没有搞出一个有科学根据的选拔标准。因此,我们必须对不同年龄女少年进行测验,以便能客观地鉴 Due to the lack of regularity research on the developmental endurance of female adolescents of different ages in the extreme intensity running, there is lack of research on their age staging for developing endurance qualities, and no scientific selection criterion has been established. Therefore, we must test female teenagers of different ages so that we can make an objective assessment