Analysis of coffin and shoulder joint lameness with an inertial sensor-based system: impact versus pushoff

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Analysis of coffin and shoulder joint lameness with an inertial sensor-based system: impact versus pushoff

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/15236

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dc.contributor.advisor Keegan, Kevin en_US
dc.contributor.author Al Abidi, Adam
dc.date.accessioned 2012-09-10T14:58:14Z
dc.date.available 2012-09-10T14:58:14Z
dc.date.issued 2012
dc.date.submitted 2012 Spring en_US
dc.identifier.other Al AbidiA-050412-T1702
dc.identifier.uri http://hdl.handle.net/10355/15236
dc.description Title from PDF of title page (University of Missouri--Columbia, viewed on September 10, 2012). en_US
dc.description The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. en_US
dc.description Thesis advisor: Dr. Kevin Keegan en_US
dc.description Includes bibliographical references. en_US
dc.description M.S. University of Missouri-Columbia 2012. en_US
dc.description Dissertations, Academic -- University of Missouri--Columbia -- Veterinary biomedical sciences. en_US
dc.description "May 2012" en_US
dc.description.abstract Reason for performing the study: An inertial sensor-based system (Lameness Locator® [LL]) can help veterinarians detect mild lameness. It would be beneficial if this tool could also be used to distinguish lamenesses produced by lesions in different structures. Hypotheses: Coffin arthritis predominantly causes impact lameness while shoulder arthritis predominantly causes pushoff lameness. Objective: To investigate if shoulder arthritis causes pushoff lameness and coffin arthritis causes impact lameness and if these lamenesses can be differentiated by comparing the phase angle of the resultant ray calculated by the LL. Methods: Using a crossover design, coffin and shoulder arthritis were alternately induced in 12 horses with intra-articular injection of IL-1β. Immediately before injection and every 6-12 h thereafter, the horses were evaluated with the LL. This evaluation was performed while the horses were trotted in hand in a straight line on a hard surface for about 120m. The phase angle (= arctangent [MINDIFF mean / MAXDIFF mean]) of each type of lameness (coffin or shoulder arthritis) were compared with the Wilcoxon signed-rank test using data from the last time point before lameness was no longer detectable. Results: No difference could be detected (p=0.625) between the phase angle when coffin (median, 81˚; range, 58-123˚) and shoulder arthritis (median, 86˚; range, 59-104˚) were compared. Conclusion: Coffin arthritis and shoulder arthritis did not consistently cause impact lameness and pushoff lameness, respectively. en_US
dc.format.extent v, 34 pages en_US
dc.language.iso en_US en_US
dc.publisher University of Missouri--Columbia en_US
dc.relation.ispartof 2012 Freely available theses (MU) en_US
dc.subject coffin arthritis en_US
dc.subject shoulder arthritis en_US
dc.subject inertial sensor-based system en_US
dc.subject lameness en_US
dc.subject.lcsh Lameness in horses -- Etiology
dc.subject.lcsh Lameness in horses -- Diagnosis
dc.subject.lcsh Arthritis in animals -- Etiology
dc.subject.lcsh Horses -- Diseases
dc.title Analysis of coffin and shoulder joint lameness with an inertial sensor-based system: impact versus pushoff en_US
dc.type Thesis en_US
thesis.degree.discipline Veterinary biomedical sciences en_US
thesis.degree.grantor University of Missouri--Columbia en_US
thesis.degree.name M.S. en_US
thesis.degree.level Masters en_US
dc.identifier.merlin b94298166
dc.identifier.oclc 818879796
dc.relation.ispartofcommunity University of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2012 Theses


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