论文部分内容阅读
有一个中学长跑队的30名学生,经过2年的系统训练,平均身高比其他同年龄的学生长2.5厘米,体重多2.1公斤,胸围宽1.3厘米。运动医学工作者对其他运动队也进行过观察,发现集训后的生长速度比集训前的生长速度提高一倍。尤其是春季参加体育运动,身体长得更快,个子长得更高。我们知道,身材的高低和种族、遗传、营养、健康有密切的关系,如白种人比较高,黄种人比较低;父母身材高的,营养条件好的,健康状况好的青少年身材也高.而在以上条件相同时,积极参加体育锻炼的和不爱活动的人相比又有明显差别,这是为什么呢?
A secondary school long-distance running team of 30 students, after two years of systematic training, average height 2.5 cm longer than other students of the same age, weight 2.1 kg, chest width 1.3 cm. Sports medical workers also observed other sports teams and found that the growth rate after training set to double the growth rate before training. Especially in spring to participate in sports, body grow faster, longer tall. We know that the height of a figure is closely related to race, heredity, nutrition and health. For example, the Caucasian is higher and the Y-shaped is lower. The tall, well-nourished and good-healthd teenagers are also tall. And in the above conditions are the same, actively participate in physical exercise and those who do not love activities there are significant differences, which is why?