[請益] 投球姿勢的問題
www.chrisoleary.com/projects/Baseball/Pitching/Examples/Separation.html
老實說之前我就一直懷疑林西肯這樣丟球會不會受傷，但這篇文章卻說林西肯這樣丟球
是"有用到全身去丟球，而非只有手臂" 之前好像大聯盟周周報也有訪問到他
林的說法是身體的力量要完全釋放 才不會受傷(所以她動作才這麼大)
想請問的是：這是否就是所謂的肩膀開掉?該篇文章說屁股(或軀幹)要比肩膀先轉
但是這樣不是會給肩膀很大的負擔?變成用肩膀去拉手臂?
因為之前受過傷，所以想請問各位板友
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