Pitcher Profile: Jair Jurrjens

看板Braves作者abc12812時間17年前 (2008/12/20 15:49)推噓1(1推 0噓 2→)

留言3則, 2人參與討論串1/1

http://tinyurl.com/4qgdnd In Part One of our Pitcher Profile analysis of Jair Jurrjens, we talked about how uncommon it was to see a pitcher throw a changeup faster than his slider and also profiled the location of said off-speed pitch. We also discussed the concept of trading with the Braves (usually a bad idea) and Jurrjens' profile from a sabermetric viewpoint. Today, we'll be analyzing his pitching mechanics using the same clip we saw in the previous post. Read on! =============================================================================== Tempo: Jurrjens is 17-18 frames from maximal leg lift to footplant. Anything under 20 is great. Excellent. Arm Action: I really like what I see here. Though Jurrjens has a bit of reverse rotation in his stride, it's not very much. I see no visible evidence of forced scapular loading, which is very good news. Additionally, Jurrjens uses a pendulum arm swing down, back, and up and his pitching arm gets nearly vertical when his shoulders begin to turn. This should limit the amount of stress placed on his elbow as a result. Very Good (borderline Excellent). Ball Release: Let's take a look at the picture below, which is approximately at the point of release: What I see here is very good - his glove arm is up near his shoulder with the palm facing inward. This is commonly referred to as "throwing against a firm front side." Excellent. Followthrough: Initially I looked at the video and saw evidence of an active braking mechanism on his arm - meaning that he was pulling back with the pitching arm to slow the followthrough. This is very bad, as it can place extreme stress on both the anterior and posterior muscles of the shoulder. However, after carefully reviewing the source material again (thanks, VictorW), what I see is forceful rotation of the shoulders as he turns them nearly sideways to the target. In my opinion, this will help slow the arm down and take some of the load off the decelerator muscles in the shoulder and upper arm. Jurrjens gets a Very Good from me on this point. There's a lot to like in Jurrjens' delivery, if you ask me - he works quickly, has a clean arm action, uses his glove side well, and has a solid followthrough phase. There's no wonder why the Braves' scouts are some of the best in the business, and Jurrjens is just one of many examples of how they managed to find hidden talent that was passed over by other organizations. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.5.3