Sole depth and weight-bearing characteristics of the palmar surface of the feet of feral horses and domestic thoroughbreds

Hampson, Brian A., Connelley, Alexandra D., de Laat, Melody A., Mills, Paul C. and Pollitt, Chris C. (2011) Sole depth and weight-bearing characteristics of the palmar surface of the feet of feral horses and domestic thoroughbreds. American Journal of Veterinary Research, 72 6: 727-735. doi:10.2460/ajvr.72.6.727


Author Hampson, Brian A.
Connelley, Alexandra D.
de Laat, Melody A.
Mills, Paul C.
Pollitt, Chris C.
Title Sole depth and weight-bearing characteristics of the palmar surface of the feet of feral horses and domestic thoroughbreds
Journal name American Journal of Veterinary Research   Check publisher's open access policy
ISSN 0002-9645
Publication date 2011-06
Sub-type Article (original research)
DOI 10.2460/ajvr.72.6.727
Volume 72
Issue 6
Start page 727
End page 735
Total pages 9
Place of publication Schaumburg, IL, U.S.A.
Publisher American Veterinary Medical Association
Collection year 2012
Language eng
Formatted abstract
Objective-
To determine solar load-bearing structures in the feet of feral horses and investigate morphological characteristics of the sole in feral horses and domestic Thoroughbreds.

Sample-
Forelimbs from cadavers of 70 feral horses and 20 domestic Thoroughbreds in Australia.

Procedures-
Left forefeet were obtained from 3 feral horse populations from habitats of soft substrate (SS [n = 10 horses]), hard substrate (HS [10]), and a combination of SS and HS (10) and loaded in vitro. Pressure distribution was measured with a pressure plate. Sole depth was measured at 12 points across the solar plane in feet obtained from feral horses from SS (n = 20 horses) and HS (20) habitats and domestic Thoroughbreds (20).

Results-
Feet of feral horses from HS habitats loaded the periphery of the sole and hoof wall on a flat surface. Feral horses from HS or SS habitats had greater mean sole depth than did domestic Thoroughbreds. Sole depth was greatest peripherally and was correlated with the loading pattern.

Conclusions and Clinical Relevance-
The peripheral aspect of the sole in the feet of feral horses had a load-bearing function. Because of the robust nature of the tissue architecture, the hoof capsule of feral horses may be less flexible than that of typical domestic horses. The application of narrow-web horseshoes may not take full advantage of the load-bearing and force-dissipating properties of the peripheral aspect of the sole. Further studies are required to understand the effects of biomechanical stimulation on the adaptive responses of equine feet.
Keyword Strain patterns
Distal phalanx
Hoof capsule
Pressure
Stress
Sound
Shape
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Veterinary Science Publications
 
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Created: Tue, 05 Jul 2011, 14:37:33 EST by Ms Lynette Adams on behalf of School of Veterinary Science