Evaluation of ground reaction forces produced by chickens walking on a force plate

Corr, S. A. , McCorquodale, C. C., McGovern, R. E., Gentle, M. J. and Bennett, D. (2003) Evaluation of ground reaction forces produced by chickens walking on a force plate. American Journal of Veterinary Research, 64(1), pp. 76-82. (doi: 10.2460/ajvr.2003.64.76) (PMID:12518882)

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Objective: To evaluate the use of a force plate as a method for objective gait analysis in adult poultry, to characterize ground reaction forces (GRFs) produced in adult chickens during normal walking, and to assess the variability of GRFs. Animals: 18 clinically normal 5-month-old Brown Leghorn hens Procedure: Vertical, craniocaudal, and mediolateral GRFs were measured as hens walked across a stan-dard force plate embedded in the middle of a runway. Results: All GRFs were significantly affected by speed, and variability was high. With increasing speed, overall stance time decreased, but the per-centage of stance time spent in braking or propulsion remained approximately equal. There was an overall increase in maximum propulsion force, which was produced at a greater rate over a shorter time; thus, propulsion integral ecreased. Maximum braking forces and braking integrals were variable, but the rate at which the forces were generated increased. Mediolateral forces were 2 to 3 times greater in hens than values that have been reported for other species. Conclusions and Clinical Relevance: A standard force plate can be used to objectively measure GRFs in walking adult hens; however, the large variation in the data suggests that the technique in its current form would be of limited clinical use. Overall, vertical and craniocaudal forces had similar characteristics to those of other species, whereas mediolateral forces were found to be much greater in chickens than for other species.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Bennett, Professor David and Corr, Sandra
Authors: Corr, S. A., McCorquodale, C. C., McGovern, R. E., Gentle, M. J., and Bennett, D.
College/School:College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine
Journal Name:American Journal of Veterinary Research
ISSN (Online):1943-5681

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