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Analysis of Baseball Pitch

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Allyson Forrest

on 18 January 2013

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Transcript of Analysis of Baseball Pitch

Baseball Pitch Analysis of Skill Assignment Preliminary Movements •Relaxed but firm grip with fingers on top of the ball and thumb underneath the ball

•Keep both feet on the rubber and stand on the left or right side depending on what way you throw

•Stand comfortably with your shoulders and hips square to the plate and your weight slightly more on your throwing foot.

•Hold the ball in the glove or in your throwing hand (glove helps disguise pitches; hand allows quicker reactions if somebody moves from a base). Back swing/ Recovery Movements •Take a short step back, transferring weight to your stride foot, while moving your hands into position.

•Your hands may move to the top of your head, remain gathered near your chest or move to a comfortable point between these two extremes.

•Turn your pivot foot 90* (square to home plate) so that the outside of the foot comes to rest in contact with the front edge of the pitching rubber.

•Lift your stride leg straight up, with your thigh and shin forming at least a 90* angle.

•Keep your head centered over the front side of your pivot foot for good balance Force Producing Movements •As the pitcher strides forward, the hands break and the momentum is transferred toward home plate (slow and controlled lower half of the body).

•A relaxed stride foot leads straight forward, feeling for the ground (imagine your foot sliding down a playground slide).

•Both thumbs rotate down as your hands break (break hands thumbs to thighs).

•Ball separates from glove with the palm of the throwing hand facing down and fingers on top of the ball.

•The path of the throwing arm to full extension is down, back, around and up through release.

•Glove-side hip remains closed and pointing toward the plate, until the stride foot is down and the torso begins rotating.

•Land on a slightly closed front foot with weight centered over the ball of the foot. Stride leg should be flexed and firm.

•Straighten the stride leg by rotating on the ball of the stride leg foot (momentum is transferred up through the body to the throwing arm). Be careful not land on a stiff/locked front leg.

•Head is behind stride leg knee at landing and finishes out over the stride leg knee after release. Critical Instant •Throwing arm elbow must be at least the height of the throwing shoulder through the release point.

•Ball is released in front of your throwing arm shoulder, in the area of the tip of your cap.

•At release, your throwing arm is slightly bent at the elbow. Follow Through •Glove arm rotates inward and down, coming back to rest in the area between hip and chest.

•Throwing arm completes a smooth arm path to full extension.

•Head stays on line with the plate and balance is maintained over the landing foot.

•Pivot foot elevates, releasing the back side hip for full hip rotation. BM Principle: Stability BM Principles: Stability The lower the center of mass the larger the base of support, the closer the center of mass to the base of support, and the greater the mass, the more stability increases. The lower the center of mass the larger the base of support, the closer the center of mass to the base of support, and the greater the mass, the more stability increases. BM Principles: Maximum Effort The production of maximum force requires the use of all possible joint movements that contribute to the tasks objective. Maximum Velocity The production of maximum velocity requires the use of joints in order - largest to smallest. BM Principles: Linear Motion The greater the applied impulse, the greater the increase in velocity. Angular Motion Angular motion is produced by the application of a force acting at some distance from an axis, that is, by torque. Angular Momentum Angular momentum is constant when an athlete or object is free in the air. BM Principles: Maximum Velocity The production of maximum velocity requires the use of joints in order - largest to smallest. Stability The lower the center of mass the larger the base of support, the closer the center of mass to the base of support, and the greater the mass, the more stability increases. January 18th 2013
Richardson- PSE4U1
Allyson Forrest & Kendra Down Citations: "Baseball Canada Pitching Mechanics ." Baseball Canada. N.p., n.d. Web. 18 Jan. 2013. <http://www.baseball.ca/eng_doc.cfm?DocID=119>.
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