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Archive (2005–2015)

Kinematic analysis of Labrador Retrievers and Rottweilers trotting on a treadmill

Journal: Veterinary and Comparative Orthopaedics and Traumatology (VCOT)
ISSN: 0932-0814
DOI: http://dx.doi.org/10.3415/VCOT-10-03-0039
Issue: 2011: Issue 3 2011
Pages: 185-191

Kinematic analysis of Labrador Retrievers and Rottweilers trotting on a treadmill

F. S. Agostinho (1), S. C. Rahal (1), N. S. M. L. Miqueleto (1), M. R. Verdugo (1), L. R. Inamassu (1), A. O. El-Warrak (2)

(1) Department of Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista (UNESP), Botucatu, SP, Brazil; (2) Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, Canada

Keywords

dog, Gait analysis, Kinematic

Summary

Objectives: The purpose of the study was to evaluate kinematic patterns in clinically normal Labrador and Rottweiler dogs trotting on a treadmill at a constant velocity. Methods: Ten Labrador Retrievers aged from 2.2 to 5.1 years, and 10 Rottweilers aged from two to 5.9 years were used. A three-dimensional capture system was used to perform analysis of joint kinematics. Kinematic data were collected by use of a triple-camera system. The kinematic study was performed first on the right side of the dog, and then on the left side. Data were analysed by use of a motion-analysis program. Flexion and extension joint angles, angular velocity and angular acceleration were determined for the shoulder, elbow, carpal, hip, stifle, and tarsal joints. Results: Within each group, the differences between the right and left limbs in all variables were not significant. Significant differences occurred between Labradors and Rottweilers in the following categories: angular displacement and minimum angular acceleration of the stifle (Rottweiler >Labrador); angular displacement and maximum angular velocity of the tarsus (Rottweiler >Labrador); minimum angular velocity of the shoulder (Labrador >Rottweiler); angular displacement, maximum angular acceleration, maximum angular velocity, and minimum angular velocity of the elbow (Labrador>Rottweiler); and maximum angle and maximum angular velocity of the carpus (Labrador>Rottweiler). Clinical significance: Both breeds had similar kinematic patterns, but there were magnitude differences, especially of the elbow and stifle joints. Therefore, each breed should have a specific database.

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