[請益] 投球動作again
http://www.pixnet.net/album/iankursk/13377729
大概10月底錄的
這大概用6分力投而已
平常球速最快大台北110kph 野球魂的槍68mph
球速已經很久沒有進步了
雖然知道自己最大的問題在於肌肉太小塊
但還是po上來請教一下看看動作有何問題
先祝各位球友新年快樂囉~
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