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Metacarpal geometry changes during Thoroughbred race training are compatible with sagittal-plane cantilever bending.
- Source :
-
Equine veterinary journal. Supplement [Equine Vet J Suppl] 2010 Nov (38), pp. 407-11. - Publication Year :
- 2010
-
Abstract
- Reasons for Performing Study: Bending of the equine metacarpal bones during locomotion is poorly understood. Cantilever bending, in particular, may influence the loading of the metacarpal bones and surrounding structures in unique ways.<br />Hypothesis: We hypothesised that increased amounts of sagittal-plane cantilever bending may govern changes to the shape of the metacarpal bones of Thoroughbred racehorses during training. We hypothesised that this type of bending would require a linear change to occur in the combined second moment of area of the bones for sagittal-plane bending (I) during race training.<br />Methods: Six Thoroughbred racehorses were used, who had all completed at least 4 years of race training at a commercial stable. The approximate change in I that had occurred during race training was computed from radiographic measurements at the start and end of training using a simple model of bone shape.<br />Results: A significant (P < 0.001), approximately linear pattern of change in I was observed in each horse, with the maximum change occurring proximally and the minimum change occurring distally.<br />Conclusions: The pattern of change in I was compatible with the hypothesis that sagittal-plane cantilever bending governed changes to the shape of the metacarpal bones during race training.<br /> (© 2010 EVJ Ltd.)
Details
- Language :
- English
- Issue :
- 38
- Database :
- MEDLINE
- Journal :
- Equine veterinary journal. Supplement
- Publication Type :
- Academic Journal
- Accession number :
- 21059037
- Full Text :
- https://doi.org/10.1111/j.2042-3306.2010.00209.x