✔ 最佳答案
this can help your muscles to be stronger so that you can run last longer. However,besides running with load, you also need to practise your breathing speed and the capacity of lungs. These are also the things you need to run longer.
for me i seldom running with load to practise running, i usually go to run go-up-slope. In long term, you can practise your 爆發力,and the muscles can be better and this can also 訓練跑步持久力.
2009-01-05 21:38:28 補充:
5 of them are advertisement.......