Measurement of vertical ground reaction force in jumping dogs /
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| Format: | Thesis Book |
| Language: | English |
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| Abstract: | ABSTRACT: Military working dogs and obedience competition dogs are two populations of dogs that are subject to repetitive jumping over many years of their lives. This repetitive impact loading may contribute to the development of degenerative joint disease. The forces acting on the forelimbs of dogs as they hit the ground after jumping have not been investigated. The purpose of this study was to quantitate the peak vertical ground reaction force acting on the forelimbs of dogs as they landed after jumping an obstacle, and to compare that force at three heights. Thirteen military working dogs were studied. A strain guage force plate was used to measure force. Three measurements were recorded for each dog at each height. The means of the medians of the three forces for each dog at each height were compared using a repeated measures analysis of variance. Mean force at 63 cm was 100.7±22.6 kg, mean force at 79 cm was 119.9±23.2 kg, and mean force at 94 cm was 139.4±27.4 kg. There was a significant difference in mean force at the three jump heights (p=0.0002). The significance was unchanged when force was normalized for body weight. Statistical models were used to evaluate the effect of other independent variables. Factors that were found to effect force were body weight, breed, and sex of the dog. Further studies are needed to determine the clinical significance of these findings. |
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| Item Description: | Typescript (photocopy). Vita. "Major subject: Veterinary Medicine and Surgery." "Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of Master of Science May 1991". Approved as to style and content by: Donald A. Hulse, Harry A. Hogan, Michael R. Herron, Ross H. Palmer, John R. August. |
| Physical Description: | ix, 38 leaves : illustrations ; 29 cm |
| Bibliography: | Includes bibliographical references. |