請幫忙修正投球/傳球問題 - 壘球

By Harry
at 2016-11-13T16:24
at 2016-11-13T16:24
Table of Contents
想請問各位前輩這樣的丟球動作有沒有什麼問題?
有去過大新莊的牛棚投,極速100km左右,平均大概90km初
可是自己感覺手出的力量沒什麼不同
朋友說是沒使用到轉腰的力量,感覺都是純靠手臂力量丟
希望有人可以幫忙指點出問題,謝謝
https://www.youtube.com/watch?v=2xXoV25GaQs
https://www.youtube.com/watch?v=5geec42X1mg
--
有去過大新莊的牛棚投,極速100km左右,平均大概90km初
可是自己感覺手出的力量沒什麼不同
朋友說是沒使用到轉腰的力量,感覺都是純靠手臂力量丟
希望有人可以幫忙指點出問題,謝謝
https://www.youtube.com/watch?v=2xXoV25GaQs
--
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