以下是引用heavysnow在2005-9-4 11:13:00的发言:
wondering if you can borrow such video tape from the local library. i found this link for you, might be helpful. good luck!
Very helpful resource, thanks.
这两天正试图improve自己的runnig style. 两天来一直在track上running on barefeet, 还试着调整步频. 发现高步频比以前习惯的自然步频省力好多.