Gait analysis

Authors: Robin, D.; Chateau, H.; Pacquet, L.; Falala, S.; Valette, J.-P.; Pourcelot, P.; Ravary, B.; Denoix, J.-M.; Crevier-Denoix, N.
Journal: Equine Veterinary Journal

Reasons for performing study: Track surface quality is considered a risk factor of musculoskeletal injuries. Ground reaction force (GRF) measurement is a relevant approach to study the interaction between the hoof and the ground. Force plates are not adapted to compare different surfaces at high speed. A 3D dynamometric horseshoe (DHS), using 4 triaxial piezoelectric sensors, has been developed and validated. Objectives: To use the DHS to compare the effects of 2 track surfaces, an all-weather waxed track and a crushed sand track, on the GRF in trotter horses under training conditions.

Category: Equine - Gait analysis
Authors: Chateau, H.; Robin, D.; Falala, S.; Pourcelot, P.; Valette, J.-P.; Ravary, B.; Denoix, J.-M.; Crevier-Denoix, N.
Journal: Equine Veterinary Journal

Reasons for performing study: Inadequate track surfaces are believed to be a risk factor in the occurrence of musculoskeletal injuries, but quantification of the shocks and vibrations provoked by hoof impact on different ground surfaces (including new synthetic tracks) has been insufficiently documented in trotters under high-speed training conditions. Objectives: To test the reliability and sensitivity of an accelerometric device to discriminate between the biomechanical effects of 2 different tracks at high speed.

Category: Equine - Gait analysis
Authors: Colborne, G.R.; Heaps, L.A.; Franklin, S.H.
Journal: Equine Veterinary Journal

Reasons for performing study: Joint congruity and ligaments restrain the distal limb joints from excessive motion in the transverse and frontal planes, but the magnitudes and direction of the horizontal twisting moments around the hoof's centre of pressure (CoP) that induce these motions are unknown.

Objectives: To quantify the horizontal moment around the vertical axis through the hoof's CoP at walk, and to determine whether these are symmetric.

Category: Equine - Gait analysis
Authors: Wilson, G.H.; McDonald, K.; O'Connell, M.J.
Journal: Equine Veterinary Journal

Reasons for performing study: Research has highlighted a high frequency of skeletal asymmetries in horses. In addition, research into hoof asymmetries has shown that within a bilateral pair, the hoof with the smaller angle is often subjected to greater loading. There has been limited attention paid to understanding compensatory mechanisms for skeletal asymmetries in the horse; the dynamic structure of the hoof could potentially be acting in a compensatory capacity.

Category: Equine - Gait analysis
Authors: Decurnex, V.; Anderson, G.A.; Davies, H.M.S.
Journal: Equine Veterinary Journal

Reasons for performing study: Most lameness in horses relates to foot problems and may be associated with changes in hoof shape, but there is a lack of information on the influence of normal exercise on hoof shape.

Objectives: To investigate the effect of training on proximal hoof circumference in young Thoroughbred racehorses being prepared for racing.

Category: Equine - Gait analysis
Authors: Hobbs, S.J.; Mather, J.; Rolph, C.; Richards, J.
Journal: Equine Veterinary Journal

Reasons for performing study: Radial strain in normal hooves has been found to vary with strain gauge location, limb posture and sample limb but reported magnitudes were considered to be low. More accurate measurement of radial strain may enhance the understanding of hoof function.

Objectives: To explore in vitro radial hoof strain in relation other kinetic and kinematic variables that may be related.

Category: Equine - Gait analysis
Authors: Davies, H.M.S.
Journal: Equine Veterinary Journal

Reasons for performing study: Data are required to confirm that strain gauges recording high bone strains in Thoroughbred racehorses provide an accurate record of bone strain.

Objective: To test the accuracy and reliability of very high in vivo strain recordings made during fast exercise in Thoroughbred racehorses.

Category: Equine - Gait analysis
Authors: Collins, S.N.; Murray, R.C.; Kneissl, S.; Stanek, C.; Hinterhofer, C.
Journal: Equine Veterinary Journal

Reasons for performing study: The finite element (FE) method is the most powerful modelling technique available to explicate the biomechanics of the digit. It has already proved to be of high value in human podiatry. However, accurate models of the complex anatomy of the horse and donkey digit are currently lacking.

Objectives: To develop FE models of the horse and donkey digit from computed tomography data, including all functionally relevant anatomy, and to perform simulations to replicate prestrain in the flexor tendons and quasistatic weightbearing.

Category: Equine - Gait analysis
Authors: den Hartog, S. M.; Back, W.; Brommer, H.; van Weeren, P. R.
Journal: Equine Veterinary Journal

Reasons for performing study: Insight into the loading pattern of the articular cartilage surface during the complete stride is important as biomechanical factors play a pivotal role in the pathogenesis of joint trauma and osteoarthritis (OA).

Objectives: To determine the loading pattern in the equine MCP articulation in vitro during simulated walk.

Category: Equine - Gait analysis
Authors: Haussler, K.K.; McGilvray, K.C.; Ayturk, U.M.; Puttlitz, C.M.; Hill, A.E.; McIlwraith, C.W.
Journal: Equine Veterinary Journal

Reasons for performing study: Sacroiliac joint injuries can cause poor performance; however, the interaction between pelvic mechanics and the sacroiliac joint is poorly understood.

Objective: To measure pelvic displacement during 3D sacroiliac joint loading.

Category: Equine - Gait analysis