The ulnar collateral ligament (UCL) is a prime stabilizer in the elbow against valgus force. It is also a commonly injured structure in the overhead-throwing athlete. The majority of literature to date assesses the medial elbow by adding a valgus stress or evaluates the elbow after injury has occurred. The purpose of this dissertation is to explore static changes to the medial elbow and the relationship with the overhead throw. The first investigation sought to determine if there was a bilateral difference in the medial joint space of the elbow in general population college-aged students. There was no significant difference bilaterally; suggesting that the magnitude of stress applied to the elbow by daily activities is not substantial enough to produce an anatomical change to the connective tissue. However, there was a significant gender effect with males exhibiting larger joint spaces. The second study investigated the bilateral difference in the medial joint space of the elbow in male and female overhead athletes with the same protocol from the previous study. In this study, there was a significant difference between the dominant and non-dominant arms. The third study measured the medial joint space of collegiate baseball pitchers before, after, and 48 hours following the throwing of a simulated game. This study also included measures of grip strength and ball kinematics, in order to investigate a relationship between kinetic and kinematic factors and the changes in the medial joint space. There were no significant changes in the medial joint space following pitching a simulated game, although interestingly, grip strength increased following pitching. Ball kinematics did not indicate a relationship with the changes in the medial elbow joint space.
| Identifer | oai:union.ndltd.org:LSU/oai:etd.lsu.edu:etd-03232017-131103 |
| Date | 04 April 2017 |
| Creators | Jackson, Meghan Reid |
| Contributors | Landin, Dennis, Nelson, Arnold, Johnson, Lisa, Gilman, Doug |
| Publisher | LSU |
| Source Sets | Louisiana State University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lsu.edu/docs/available/etd-03232017-131103/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached herein 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 LSU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below and in appropriate University policies, 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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