Re: 投球時 手肘何時出力? 怎嚜出力?
看板PlayBaseball作者cmvct723d (working on)時間18年前 (2007/09/17 02:56)推噓7(7推 0噓 11→)留言18則, 6人參與討論串3/4 (看更多)
http://0rz.tw/8831Q
週六練球拍的
目前投球動作是這樣子
抬腿後重心前移不太乾脆
踏定後進入送球動作背部弓了起來
造成重心往一壘側偏
等下次練球再好好的修正
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09/17 09:56, , 1F
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