Gait analysis

Authors: Alison M. Harvey, Sarah B. Williams, Ellen R. Singer
Journal: The Veterinary Journal

This study aimed to assess the effect of lateral heel studs on foot–ground interaction in the horse by quantifying foot slip during stance whilst cantering on a grass surface. It was hypothesised that using studs would decrease foot slip distance on the ground conditions tested. Nine horses were ridden with and without a stud placed laterally in the shoe of each of the 4 feet. High speed video-analysis was used to track hoof markers and to provide data quantifying foot slip distance, slip duration and stance duration.

Authors: Kevin G. Keegan, DVM, MS; Charles G. MacAllister, DVM; David A. Wilson, DVM, MS; Carl A. Gedon; Joanne Kramer, DVM; Yoshiharu Yonezawa, PhD; Hiromitchi Maki, PhD; P. Frank Pai, PhD
Journal: American Journal of Veterinary Research

Objective—To assess the analytic sensitivity of an inertial sensor system for detection of the more severely affected forelimb in horses with bilateral lameness.

Animals—18 adult horses with forelimb lameness.

Authors: Sarah F. Denham, W. Burton Staniar, John J. Dascanio, Amanda B. Phillips, Rebecca K. Splan
Journal: Journal of Equine Veterinary Science

Kinematic variables of the walk in adult horses have been well described in the literature, but few studies have investigated growth-associated changes in these parameters. The objective of this study was to quantify linear and temporal walk patterns in Warmblood foals during the preweaning growth period. Nine foals were videotaped at the walk at 3, 11, and 21 weeks of age. Repeated-measures analyses were used to compare trait means between age groups. No significant effects owing to gender were found.

Category: Equine - Gait analysis
Authors: Luke A.B. Poore, Theresia L. Licka
Journal: Journal of Equine Veterinary Science

Movement analysis techniques allow objective and quantitative assessment of kinematic gait analysis. Consistent repeatability of the kinematic data is essential for such assessments. This study investigated whether the repeatability of a standardized Equinalysis Elite gait analysis system is sufficient to allow its use in clinical evaluation of equine lameness with reliable documentation of individual locomotion patterns. The extent to which examinations on different days affected the results when a standardized protocol was used was investigated.

Category: Equine - Gait analysis
Authors: M. Oosterlinck, F. Pille, W. Back, J. Dewulf, F. Gasthuys
Journal: The Veterinary Journal

The aim of this study was to evaluate the association between fore- and hind-hoof contact area and limb loading. Data from a previous study on forelimb loading and symmetry were compared with data on hindlimb kinetics, and the fore- and hind-hoof contact area at the walk and trot was evaluated. Five sound ponies, selected for symmetrical feet, were walked and trotted over a pressure plate embedded in a custom-made runway.

Category: Equine - Gait analysis
Authors: Hilary M. Clayton, BVMS, PhD; Michael Lavagnino, PhD; LeeAnn J. Kaiser, MS; Narelle C. Stubbs, MS
Journal: American Journal of Veterinary Research

Objective—To compare effects of 4 types of stimulation devices attached to the hind feet on hoof flight, joint angles, and net joint powers of trotting horses.

Animals—8 clinically normal horses.

Category: Equine - Gait analysis
Authors: S. J. HOBBS, T. LICKA, R. POLMAN
Journal: Equine Veterinary Journal

Reasons for performing study: Locomotion adaptation mechanisms have been observed in horses, but little information is available in relation to banked and nonbanked curve locomotion, which might be important to optimise training environments.

Objectives: To determine if adaptation mechanisms in horses existed when moving on a banked compared to a flat curve and whether adaptation was similar in different gaits.

Category: Equine - Gait analysis
Authors: Kevin G. Keegan, DVM, MS; Joanne Kramer, DVM; Yoshiharu Yonezawa, PhD; Hiromitchi Maki, PhD; P. Frank Pai, PhD; Eric V. Dent, DVM; Thomas E. Kellerman, DVM; David A. Wilson, DVM, MS; Shannon K. Reed, DVM, MS
Journal: American Journal of Veterinary Research

Objective—To determine repeatability of a wireless, inertial sensor–based lameness evaluation system in horses.

Animals—236 horses.

Category: Equine - Gait analysis
Authors: I. Viñuela-Fernándeza, E. Jones, M.E. Chase-Topping and J. Price
Journal: The Veterinary Journal

This study compared three subjective scoring systems used to assess lameness associated with equine laminitis: (1) visual analogue scale, (2) Obel score and (3) clinical grading system (CGS). Two groups of 12 observers, consisting of equine veterinarians and final-year veterinary students, scored lameness severity after watching video footage of 14 horses on two occasions. Generalizability theory was used to investigate the reliability of the three systems and the effects of observer experience. Overall reliability across all times and observers was high.

Authors: K. J. PARSONS, A. J. SPENCE, R. MORGAN, J. A. THOMPSON, A. M. WILSON
Journal: Equine Veterinary Journal

Reasons for performing study: Mechanical characterisation of the high speed gallop has significant importance for animal welfare and basic biology. Kinematic parameters such as the velocity of each foot at contact can inform theories of why animals gallop, and supplant epidemiological investigation into the mechanisms of musculoskeletal injury.

Objective: To determine the velocity at which the fore and hind hooves of elite galloping horses impact the surface.

Category: Equine - Gait analysis