Video Analysis of the Pitcher
Throwing a ball is one of the fastest known human actions, but with the use of high speed videotape, computer programs, and muscle testing devices, researchers, bio-mechanists and coaches are able to study and analyze the throwing motion in specific detail.
For a coach, the use of video analysis, even done with a regular VCR, is a very effective way to study and learn about the specifics of the pitching motion and their pitchers. A coach needs to be able to recognize proper techniques during the various phases, then be able to identify specific faults. Finally, to be an effective teacher, the coach must be able to teach the pitcher how to overcome and correct various faults with technique adjustments and drills.
For a pitcher, the use of videotape allows him to see how he actually throws. Usually, a pitcher cannot feel what he is doing wrong because it feels natural to him. But, by comparing himself to other pitchers who have proper mechanics, he will be able to see the difference and try to copy the correct technique.
It is also effective for a pitcher to practice various techniques in front of a mirror; this gives him instant feedback.
Remember, not all pitchers throw, or should throw, exactly the same way. Let the pitcher use his own style as long as his mechanics dont limit his effectiveness, his potential, or cause undue stress on the arm.
Most long term, injury free, and consistently effective pitchers display the following traits:
I. Film his normal throwing (not pitching) motion from 3 angles; no shirt, in shorts.
B. From the back
C. From the front
A pitcher only needs to throw 8-10 pitches at full velocity from the windup and set position to get a good read of his mechanics.
A. From side angle
Throwing arm action
Lead arm action
Cocked position head in top center of triangle
Stride leg flexion to bracing
Trunk squaring
Stride alignment
Hand and arm alignment
Trunk rotation vs. tilt
Arm slot
Body over the stride leg
Lead arm action
Trunk squaring
Arm slot Release angle
Arm deceleration
II. Look for players with:
A loose shoulder; a continuous motion; no hesitation
A full range of motion, proper cocked position, good shoulder external rotation, full arm extension in front
A loose wrist at the release point
Throws in a 45 degree downward angle
Has a long smooth arc of arm deceleration
III. Demonstrate various segments of the pitching motion
A. 3 segments of the motion
Forward
Rotational
Trunk flexion
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