50米跑如果尝试改为追逐跑效果会更佳，具体方法如下：学生二人一前一后，中间有一定的距离，后者追前者，被追上者做俯卧撑两个，追不上的，后者做俯卧撑一个。我一宣布，学生们跃跃欲试，兴趣盎然。开始追逐跑了，我在原起跑线前约两米处多画了一条起跑线，第一组我安排四对 If the 50-meter race tries to change to a chase run, the effect will be better. The specific method is as follows: The students have a certain distance between the two. The latter chases the former and is chased by the chasing person. The latter does push-ups one. As soon as I announced that students were eager to learn and have a lot of interest. After starting the chase, I drew a starting line about two meters before the original starting line. I arranged four pairs in the first group.