Several studies have been conducted investigating the biomechanics of pitching [1-9]. These previous studies all report high compressive and distractive forces for shoulder external rotation, elbow flexion with a maximum varus torque, shoulder adduction torque, and elbow extension. These characteristics may be exacerbated with increased pitch counts.
The purpose of this study was to quantify changes in shoulder and elbow mechanics as a result of increased pitch count, by evaluating joint angles, accelerations, and velocities. Subjects each completed one testing session. Intercollegiate baseball pitchers pitched a simulated game, with 17 pitches per inning over the course of 9-innings. Shoulder and elbow kinematic data were evaluated for a fastball every tenth pitch of the simulated pitch count for each subject. Our overall hypothesis was that as the pitch count increased, abnormal throwing mechanics would result.
| Identifer | oai:union.ndltd.org:PITT/oai:PITTETD:etd-04082005-234016 |
| Date | 12 April 2005 |
| Creators | Kohlmeyer, Elizabeth A. |
| Contributors | Scott M. Lephart, PhD, ATC, Jean L. McCrory, PhD, Joseph B. Myers, PhD, ATC |
| Publisher | University of Pittsburgh |
| Source Sets | University of Pittsburgh |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.library.pitt.edu/ETD/available/etd-04082005-234016/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to University of Pittsburgh or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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