enenen, the legs are big musle group

來源: 於 2012-11-07 09:28:41 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

 the musles burns most energy. if you go to the barbell strength, the instructor always let you load up if you work on the leg. and back muscle,chestsmaller. bicep,tricep smallest.