The better way; alternate speed walking, running...

来源: 于 2011-05-19 14:01:26 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

http://exercise.about.com/cs/cardioworkouts/l/blinterval.htm

 simply alternate speed walking, running or hills for 1-2 minutes with 2 minutes of slow walking to recover.