Fast Pitching Case Study

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Qualitative Movement Diagnosis of Fast Pitch Softball
Kendra Amerson
Selected Topics in PHED

Overhand throwing has been documented as the principal cause of injury to pitchers. To achieve compressive force to through the ball during pitching, the force produced by the shoulders and elbow is equated to 80-120 percent of the pitchers body weight. Pressure and force exerted on the shoulder area leads to high velocities generation during throws and estimated to be at most 7 percent of the body’s weight combined with the height. In turn, the player may expose her/himself to shoulder injury such as shoulder flexion of the shoulder (168° ±35°), flexion of the knee at an angle and the stepping length and angle averaged 89% ±11% of body height (Knudson & D.V, 2013).
Unlike the overhand pitching, the underhand pitching injuries has caught minimal attention in the sports medicine due to common perception that it rarely stresses the arm when pitching; leading to minor injuries in the long run. This was not the case when a survey was done to quantify the frequency of injuries caused by underhand pitching. …show more content…
A pitcher was considered healthy if she had no injury or recovering from an injury, no surgery procedure done at least 12 months before the test and also if the pitcher self-evaluated herself and felt adequate enough to make a pitch she the same rate and speed she pitches during a game. The average age was 21 years old, 65 kilograms and average of 1.73m tall. The kinematic values directly recorded the torque and force exerted on the trunk to the upper arm at the

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