High speed field kinematics of foot contact in elite galloping horses in training

Abstract

Explanations consistent with these findings include the hindlimbs more effectively dampening peak impact forces, or that other injury mechanisms, such as limb vibration and limb load at mid stance, play an important role in injury.

Discrimination of two equine racing surfaces based on forelimb dynamic and hoof kinematic variables at the canter

“…Forelimb kinematics before landing are likely to be responsible for this difference, but were not analysed in this study. On a given surface, hoof velocity immediately prior to impact is considered to be an important factor conditioning the magnitude of impact force (Parsons et al, 2011). In our study, there was no significant difference in the maximal vertical deceleration (vertical impact shock) between turf and AWW, whereas a strong inverse effect (turf inducing a higher peak than AWW) was observed in the corresponding vertical impact peak measured by the DHS.…”

“…On a given surface (all-weather waxed track), Parsons et al (2011) used high speed videography measurements of horizontal and vertical velocity of the hoof immediately prior to impact, and subsequent vertical sink and horizontal slip distances travelled by the hoof into the surface, to make indirect inferences about expected impact forces.…”

Size-Related Changes in Foot Impact Mechanics in Hoofed Mammals

“…While segment length scales isometrically in geometrically similar animals, limb angle at impact seems to scale lower than what isometry predicts [19]. On that basis, we expect (horizontal) impact velocity to scale with negative allometry (scaling with a slope lower than M b 0.16 ), with the (propulsive) hind limbs impacting at faster velocities than the forelimbs [18], [20]. The expected value of 0.16 for geometric similarity is derived from dividing distance (M b 0.33 ) by time (M b 0.17 ) .…”

The Horserace Betting Levy Board: 50 years of advances in equine veterinary science, education and practice

“…In the last 2 years alone HBLB funding was acknowledged in articles addressing cutting edge work topics in a diverse range of subjects as biomechanics (Ferrari et al . 2009; Parsons et al . 2010; Unt et al .…”