Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539910
Title: Specialisation for fast locomotion : performance, cost and risk
Author: Hercock, Carol Ann
Awarding Body: University of Liverpool
Current Institution: University of Liverpool
Date of Award: 2010
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Abstract:
The racing Greyhound presents us with an opportunity to study the characteristics of a successful athlete and the costs and risks such specialisation entails. This thesis investigates the nature of the injuries suffered by racing Greyhounds and how adaptation of the musculoskeletal system to the unique pattern of stresses encountered during racing and training might impact upon the risk of injury. Racing Greyhounds sustain a number of musculoskeletal injuries. Several of these, notably fatigue fractures of distal limb bones, are very similar to those seen in human athletes and military recruits (Armstrong et al. 2004; Beck et al. 2000; Brukner et al. 1996; Kowal 1980; Matheson et al. 1987). The most common, often leading to the dog being euthanatised, is fracture of the right tarsus. Evaluation of tarsal fractures via radiography alone frequently resulted in an underestimation of the severity of the injuries, whereas the use of computed tomography provided a more detailed, accurate assessment. Evidence of asymmetric bone remodelling was found in the distal limb bones of racing Greyhounds. Rail‐side bones had significantly higher bone density and increased levels of bone resorption and formation markers compared to contralateral bones. Greyhound bones also have regional differences in trabecular architecture. In contrast, Staffordshire Bull Terrier (SBT) bones did not show these differences. Additionally, Greyhound distal limb tendons appear well adapted to withstand the high stresses of racing; they are stronger, stiffer, and in the pelvic limbs, return more elastic strain energy than the corresponding SBT tendons. Greyhounds had left‐to‐right asymmetries in the tensile properties of their pelvic limb tendons, which SBTs did not. SBTs are not bred for racing and are unlikely to encounter asymmetric stresses. Therefore, the adaptive changes observed in the Greyhound bones and tendons appear to result from the asymmetric stresses encountered by the Greyhounds during racing around ovoid tracks.
Supervisor: Young, Iain Stuart ; Innes, John F. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.539910  DOI: Not available
Keywords: SF Animal culture
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