※ 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 -- 個人BBS「棒球」討論板 PTT2(ptt2.twbbs.org)->城市之戀->休閒農場->MilkTea My Blog http://blog.xuite.net/johnason/milktea --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.45.162.101 ※ 編輯: Johnason 來自: 114.45.162.101 (05/20 20:47)