Kinesiological Analysis

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Kinesiological Analysis -The Throwing Motion PHED 304 – Kinesiology Description of Motor Skill Performance 1. Primary Purpose of Skill: The primary purpose of the skill is throwing a baseball with proper mechanics. This action is used as a warm up exercise to steadily stretch out the muscles of the arm and shoulder and prevent injury. The motion concentrates on the release point, which is a key factor in throwing the baseball accurately. Another thing that this skill teaches is proper follow through after releasing the ball. 2. Movement Phases: There are three phases in the throwing motion. There is preparatory, throwing, and the follow-through. The first phase is the preparation phase that involves getting prepared to throw the ball. The first step is getting a proper base by having the feet just wider than shoulder width apart. The center of gravity should be balanced in the middle of the body over the feet. The head positioning should be square over the shoulders and directed at the target. The arms are positioned together comfortably in front of the chest with the hand and ball in the glove. Then the arms are brought down and back simultaneously to the frontal plane in line with the shoulders. The throwing arm is on the frontal plane is back in an L shape position facing the target; this is called the power position. The glove arms elbow and upper arm is on the frontal plane but the forearm is on the transverse plane with the glove pointing to the target. The shoulder girdle has an anterior tilt when arms reach their position. At this position we are ready to start the throwing phase. The throwing arm begins moving forward by diagonally adducting the shoulder while the forearm gradually extends until the ball is released. The glove arm adducts towards the mid line of the body in the flexed position. Towards the end of the throwing phase the

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