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不少学生(尤其是农村学生)认为,只要参加正常的体力劳动就可以锻炼身体,增加筋骨健壮。其实,体力劳动有别于体育锻炼,二者不能相互替代。首先,体育是教育的一个组成部分,不能和劳动画等号。其次,有许多体力劳动往往只是身体某部分肌肉和器官活动,动作单一,因此劳动结束后一部分肌肉比较疲劳,而其它部位的肌内则没有得到必要的运动。经常如此,就会出现肌肉发展不均衡。而体育锻炼恰恰可以补充这方面的不足,它是有目的地活动全身肌肉,使那些在体力劳动过程中不易得到或没有充分得到运动的肌肉得以锻炼。再者,人在劳动时多
Many students (especially rural students) think that as long as they participate in normal physical labor, they can exercise and increase the strength of their bones and muscles. In fact, physical work is different from physical exercise, the two can not be replaced by each other. First, sport is an integral part of education and can not be equated with labor. Second, many manual work is often only part of the body muscle and organ activity, a single action, so part of the labor after the fatigue of the muscles, and other parts of the muscle did not get the necessary movement. Often, muscle imbalances occur. And physical exercise can just supplement this deficiency, it is the purpose of the whole body muscles, so that those who are not easy to get in the manual labor or not get enough exercise to exercise the muscles. In addition, people are working more