關於投手投球姿勢和訓練法的問題 - 啞鈴
By David
at 2007-12-15T00:00
at 2007-12-15T00:00
Table of Contents
1.我有一個啞鈴....要怎麼練呢...大概練到什麼程度可以換比較重的啞鈴??2.握力器大概要怎麼練....然後到底要練到什麼程度才能換阻力較大的勒??3.投球大概跨步要跨多大.然後要怎麼利用腳的力量投球.因為我看一本書說不用腳的力量手會很容易受傷==4.投球大概是要用手哪裡的力量投?5.什麼是繞肩....繞肩
Tags:
啞鈴
All Comments
By Kyle
at 2007-12-17T00:40
at 2007-12-17T00:40
By Kumar
at 2007-12-16T19:14
at 2007-12-16T19:14
By Hamiltion
at 2007-12-19T22:30
at 2007-12-19T22:30
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