Re: Pitching Mechanics: Hong Chih-Kuo

[Johnason (MilkTea)]

※ 引述《abc12812 ()》之銘言：
: http://tinyurl.com/p5ng8b
: Hong Chih-Kuo is a flamethrowing lefty who routinely gets his fastball into
: the mid-upper 90's with the Los Angeles Dodgers. These stats don't lie - Kuo
: is a great pitcher, when healthy. Of course, that's the problem - Kuo has
: suffered four surgeries on his throwing elbow.
: A closer look at his pitching mechanics follows after the jump...
: Kuo takes his throwing arm laterally behind his body quite a bit - better
: known as "reverse rotation." When he returns it to the throwing side, it
: causes a serious case of forearm flyout, which causes his olecranon process
: to slam into its fossa and do serious injury to the elbow.
: Kuo is pretty quick to the plate - 18-19 frames from maximial leg lift to
: footplant, which is good. However, he also has serious timing issues at
: footplant - check the still frame at the top of this article, or watch the
: animated GIF a few times. It's clear that Kuo has late forearm turnover and
: this causes unnecessary stress on his pitching elbow as it lays back in
: external rotation.
: Kuo has the "elbow lift" arm action, which is often referred to as a "short"
: arm action (and loved by many traditional scouts), causing him to
: horizontally flex the shoulder joint and stress the anterior portion of his
: shoulder.
: I don't know how many more surgeries Kuo can take, but if the definition of
: insanity is doing something the same way over and over again and expecting
: different results, Kuo might very well be on his way to the crazy house.

剛看到朋友轉的這篇文章

這篇可以跟我自己blog的分析一同服用
http://blog.xuite.net/johnason/milktea/3779424
並且做個比對

我個人對他的分析有以下看法

他裡面提到的reverse rotation跟我的觀察一致
我也有在我那篇文章提出這點
但是我認為這個動作是他威力的來源
加速過程需要的是時間與空間
Kuo進入發射動作前利用reverse rotate讓他能夠給球更多的加速空間
他手臂的柔軟度給與了他這個額外的加速空間
是讓他擁有世界頂級的速球品質的主要原因

配合我在道奇板(#18uDZ8ma)去年kuo受傷時的文章一並服用
他是否解決去年組織沾黏的後遺症(降低柔軟度)
以至於讓他無法負擔這個動作
才是該了解的

至於footplant這部分我覺得有點不知所云
他挑了背後的連續動作gif來解釋這點
然後說讀者可以用文頭第一張靜止圖來比對....
這個動作應該用sideview吧

Kuo也不太能被分類為short arm action
這也與第一段的reverse rotation矛盾

以上

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◆ From: 114.45.162.101
※ 編輯: Johnason        來自: 114.45.162.101       (05/20 20:47)
推 Triumvir:專業
推 abc12812:我的看法和你一樣
推 iverboy:真配服道奇隊的耐心
推 chinoyan:奶荼大也.............推
推 hikaruton:這分解圖看的出小小郭的姿勢真的很棒
→ hikaruton:可惜了他的手臂強度
→ iverboy:真配服小小郭開這麼多次刀了,還可以撐下去
→ iverboy:開過刀的都知道開刀的恐怖...
推 jbluebox:小小郭的手軟得不可思議
→ angusyu:那要怎麼分辨short arm跟long arm? 看起來他是short沒錯啊