Dynamic properties of a dirt and a synthetic equine racetrack surface measured by a track-testing device

Equine Veterinary Journal
Jacob J SetterboSusan M Stover

Abstract

Racetrack surface is a risk factor for Thoroughbred racehorse injury and death that can be engineered and managed. To investigate the relationship between surface and injury, the mechanical behaviour of dirt and synthetic track surfaces must be quantified. To compare dynamic properties of a dirt and a synthetic surface in situ using a track-testing device designed to simulate equine hoof impact; and to determine the effects of impact velocity, impact angle and repeated impact on dynamic surface behaviour. A track-testing device measured force and displacement during impact into a dirt and a synthetic surface at 3 impact velocities (1.91, 2.30, 2.63 m/s), 2 impact angles (0°, 20° from vertical), and 2 consecutive impacts (initial, repeat). Surfaces were measured at 3 locations/day for 3 days. The effects of surface type, impact velocity, impact angle and impact number on dynamic surface properties were assessed using analysis of variance. Synthetic surface maximum forces, load rates and stiffnesses were 37-67% of dirt surface values. Surfaces were less stiff with lower impact velocities, angled impacts and initial impacts. The magnitude of differences between dirt and synthetic surfaces increased for repeat impacts and higher im...Continue Reading

References

Feb 1, 1990·Medicine and Science in Sports and Exercise·B M Nigg
Jan 10, 2002·Nature·A M WilsonA J van Den Bogert
May 20, 2005·American Journal of Veterinary Research·Marc H RatzlaffBryan K Slinker
Mar 4, 2008·The Veterinary Clinics of North America. Equine Practice·Jeffrey J Thomason, Michael L Peterson
Nov 26, 2008·Equine Veterinary Journal·M L Peterson, C W McIlwraith
Oct 3, 2009·American Journal of Veterinary Research·Jacob J SetterboSusan M Stover
Jun 9, 2010·Equine Veterinary Journal·M L PetersonC W McIlwraith

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Citations

Apr 18, 2016·Journal of Biomechanics·Jennifer E SymonsSusan M Stover
Jan 31, 2015·Journal of Biomechanics·Jennifer E SymonsSusan M Stover
Jan 10, 2017·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Santiago S DiabFrancisco A Uzal
Nov 30, 2018·Animals : an Open Access Journal From MDPI·Ashleigh V Morrice-WestR Chris Whitton
Jul 21, 2021·Journal of Equine Veterinary Science·Alienor L BardinG Robert Colborne

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