[請益] 投球動作請益
小弟打棒球打一段時間,但手臂可能平常也沒再保養
現在丟球要是丟多,手肘跟二頭肌上方,都會出現很明顯的痠痛
就手舉不太起來
最近有找到一個比較順的投球動作,想麻煩大家幫我看看該如何改善?
先謝謝大家
http://www.youtube.com/watch?v=QJ-Yb97ubYs
請鞭>///<
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