速球的轉速會被投手什麼因素影響 - 棒球
By Ingrid
at 2019-05-22T12:43
at 2019-05-22T12:43
Table of Contents
推 nickyang: 轉速跟品質沒有因果關係,目前為止只是個騙錢的噱頭05/12 14:08
推 ComboDayCH: 轉速跟平均差異越大跟預期軌跡就差越多,轉速慢的可以05/12 14:58
→ ComboDayCH: 用變速指叉,而速球通常追求高轉速05/12 14:58
→ ComboDayCH: 已經有研究確認速球轉速和揮空率相關性很高,說噱頭的05/12 14:58
→ ComboDayCH: 不知道是活在哪個時空 05/12 14:58
BP的Jeff Long算過,各種球種,包含4 seamer,各自轉速跟揮空的相關係數是-0.06到-0
.07之間,請在你的時空裡提供一下是哪位大德算出速球轉速跟揮空率相關係數很高
→ web946719: 轉速跟球速對揮空率的影響05/12 15:02
推 h888512: 從上面大大的圖 轉速和揮空率還蠻有關聯的05/12 15:22
明明就是球速跟轉速二維的圖,到底怎麼看出轉速跟揮空率相關?
不只Jeff Long一個人跑過,轉速跟揮空不相關,除了活在某個時空的上面的那位大大我
真沒看過轉速跟揮空相關的研究
推 zaku810810: Hihi也滿常提到轉速的啊 怎可能轉速無關...05/12 17:01
有個人也一直喊發大財啊,怎麼可能沒有發大財?
推 siensien: 二樓無知還敢大呼小叫 呵呵05/12 17:33
呵呵
推 AHEAD099: 說轉速只是噱頭的自己去看看Magnus Effect吧05/12 19:14
→ AHEAD099: 無知並不可怕 可怕的是不知道自己無知05/12 19:14
Kyle Boddy三年前就跟被棒球耽誤的科學家Bauer合作實驗過,轉速跟球速正相關,但是
球速比起轉速跟球的品質的相關係數更高,目前的結論支持提升球速最重要,太好了,跟
一百年前人們的認知一模一樣
Jeff Z那張表出來之後起碼我看過的有十五篇文章在探討可能的bias,大大你知識這麼豐
富還會烙英文,要不要先去看完再來啊?
無知並不可怕,可怕的是不知道自己無知
慢走不送
--
Tags:
棒球
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