✔ 最佳答案
if you notice there are 3 kinds of runner, one type would be legs doesn't leave the ground too high that is the worse, the second one would be ones run like they are cycling legs leaving high up the air this type of running would give out more power, the last and the "i recomend" would be pressing your self down and strech your leg futher this way your could run like when you start and use as much length as possible.