在体育教学和训练中,经常会看到学生在进行途中跑练习时出现“坐着跑”的现象,究其原因主要有两个方面:第一,身体重心的问题。上体后仰重心偏低,极容易产生“坐着跑”的错误动作;第二,后蹬发力效果不好的问题。后蹬发力动作和角度不对使后蹬发力的效果不好也是产生“坐着跑”的原因。通过多年的教学和训练,归纳起来有以下一些纠正和改进的练习方法:1.进行上坡跑的练习,选择坡度稍微大一点的地方进行练习,坡度选择10~15度左右,反复进行上坡跑练习。2.进行上坡跑的练习,要求每次要充分 In physical education and training, students often see the phenomenon of “sitting and running” when they practice running on the road. There are two main reasons for this: First, the problem of body center of gravity. Lower body center of gravity of the upper body is very low, very easy to produce “sitting running ” error action; Second, the rear pedal force is not a good effect. After the kicking force movements and angles do not make the effect of backward kicking force is also produced “sit and run ” reason. Through years of teaching and training, the following methods of rectification and improvement are summed up as follows: 1. Practice climbing uphill and choose a slightly larger slope to practice. The slope is selected to be about 10 to 15 degrees, Run practice. 2 to run uphill training, requiring full every time