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dc.contributor.advisorKeegan, Kevinen_US
dc.contributor.authorAl Abidi, Adam
dc.date.issued2012
dc.date.submitted2012 Springen_US
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on September 10, 2012).en_US
dc.descriptionThe 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.descriptionThesis advisor: Dr. Kevin Keeganen_US
dc.descriptionIncludes bibliographical references.en_US
dc.descriptionM.S. University of Missouri-Columbia 2012.en_US
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Veterinary biomedical sciences.en_US
dc.description"May 2012"en_US
dc.description.abstractReason 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.extentv, 34 pagesen_US
dc.identifier.merlinb94298166
dc.identifier.oclc818879796
dc.identifier.otherAl AbidiA-050412-T1702
dc.identifier.urihttp://hdl.handle.net/10355/15236
dc.publisherUniversity of Missouri--Columbiaen_US
dc.relation.ispartof2012 Freely available theses (MU)en_US
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2012 Theses
dc.subjectcoffin arthritisen_US
dc.subjectshoulder arthritisen_US
dc.subjectinertial sensor-based systemen_US
dc.subjectlamenessen_US
dc.subject.lcshLameness in horses -- Etiology
dc.subject.lcshLameness in horses -- Diagnosis
dc.subject.lcshArthritis in animals -- Etiology
dc.subject.lcshHorses -- Diseases
dc.titleAnalysis of coffin and shoulder joint lameness with an inertial sensor-based system: impact versus pushoffen_US
dc.typeThesisen_US
thesis.degree.disciplineVeterinary biomedical sciencesen_US
thesis.degree.disciplineVeterinary biomedical scienceseng
thesis.degree.grantorUniversity of Missouri--Columbiaen_US
thesis.degree.levelMastersen_US
thesis.degree.nameM.S.en_US


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