Biomechanical Principles Squash

1677 Words Sep 5th, 2013 7 Pages
Preparation Phase
During the course of the preparation phase my weight is initially shifted from the front foot to the rear foot. Concurrently the left arm tosses the ball, consistency is imperative in the motion to the performance of the serve. It is important for a consistent toss, to have the left arm extended throughout the toss looking across from me somewhat poor mechanics. My elbow slightly flexed and extends the arm, rotating it from the shoulder, across my body from my outside hip. The left arm carries up to a fully extended position and aids concentration on the ball. This action occurs in order to counter the action of the racquet arm, which is moving to the rear of the body. The action of the non-racquet and racquet arm is an
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This generate much more power via the hip and trunk rotation because his right leg is forcefully going in to a golf shot The motion depicted in my pictures indicate that my hips do not rotate as forcefully and follow a much more narrow pathway. In preparation for the opponents return, I need to immediately conduct quick step forward, in order to get into a proper ready position. My knees should be bent, I should be on the balls of my feet and my racquet should be up and in front of my body so that I can react quickly and anticipate the oppositions attack.

The muscles in the follow through of the serve were the Bicep Brachii, Triceps Brachii, Deltoid, Latissimus Dorsi, Pectoralis Major, Trapezius, Flexor Digitorum and Extension Digitorum. All of these muscles were used in the follow through stage of the high serve and involved in sequential summation of force. To be able to achieve the most force out of the serve the “muscles with the most inertia should lead first.” Therefore the first muscle to move in the follow through is the Pectoralis Major working as the agonist, Trapezius as the antagonist, causing abduction of the arm as well as internal rotation of the shoulder from the shoulder joint. This then leads into the flexion of the elbow using the Bicep Brachii as the agonist and the Triceps Brachii as the antagonist. Finally the last movement in the sequence is flexion
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