Gait analysis

Authors: Laurène Holden-Douilly, Philippe Pourcelot, Loïc Desquilbet, Sylvain Falala, Nathalie Crevier-Denoix, Henry Chateau
Journal: The Veterinary Journal

Longitudinal sliding of horse’s hooves at the beginning of stance can affect both performance and orthopaedic health. The objective of this study was to compare two measurement methods for quantifying hoof slip distances at training trot. The right front hoof of four French Trotters was equipped with an accelerometer (10 kHz) and kinematic markers. A firm wet sand track was equipped with a 50 m calibration corridor. A high-frequency camera (600 Hz) was mounted in a vehicle following each horse trotting at about 7 m/s. One of the horses was also trotted on raw dirt and harrowed dirt tracks.

Category: Equine - Gait analysis
Authors: Valerie J. Moorman, DVM, PhD; Raoul F. Reiser II, PhD; Michael L. Peterson, PhD; C. Wayne McIlwraith, BVSc, PhD, DSc; Chris E. Kawcak, DVM, PhD
Journal: American Journal of Veterinary Research

Objective—To determine kinematic changes to the hoof of horses at a walk after induction of unilateral, weight-bearing forelimb lameness and to determine whether hoof kinematics return to prelameness (baseline) values after perineural anesthesia.

Animals—6 clinically normal Quarter Horses.

Authors: Valerie J. Moorman, DVM, PhD; Raoul F. Reiser II, PhD; Michael L. Peterson, PhD; C. Wayne McIlwraith, BVSc, PhD, DSc; Chris E. Kawcak, DVM, PhD
Journal: American Journal of Veterinary Research

Objective—To determine kinematic changes to the hoof of horses at a trot after induction of unilateral, weight-bearing forelimb lameness and to determine whether hoof kinematics return to prelameness values after perineural anesthesia.

Animals—6 clinically normal Quarter Horses.

Authors: Melissa R. King, Kevin K. Haussler, Christopher E. Kawcak, C. Wayne McIlwraith, Raoul F. Reiser II
Journal: American Journal of Veterinary Research

Objective—To evaluate the effect of underwater treadmill exercise on static postural sway in horses with experimentally induced carpal joint osteoarthritis under various stance conditions.

Animals—16 horses.

Authors: Jose L. Mendez-Angulo, DVM, MS; Anna M. Firshman, BVSc, PhD; Donna M. Groschen, BS; Philip J. Kieffer, DVM; Troy N. Trumble, DVM, PhD
Journal: American Journal of Veterinary Research

Objective—To determine the maximum amount of flexion and extension of the carpal, tarsal, metacarpophalangeal, and metatarsophalangeal joints and the percentage duration of the stance and swing phases of the stride for horses walking on an underwater treadmill in various water depths.

Animals—9 healthy adult horses.

Category: Equine - Gait analysis
Authors: V. A. WALKER, J. M. WALTERS, L. GRIFFITH and R. C. MURRAY
Journal: Equine Veterinary Journal

A recent epidemiological study indicated that various factors may be related to injury in dressage horses, but the mechanism by which these injuries occur has yet to be determined. The suspensory ligament (SL) is a frequent site of injury, and it is assumed that greatest strain is placed on this structure in collected trot; this has yet to be proved conclusively. The study aimed to investigate the effect of collected and extended trot on the hindlimb movement pattern. Four dressage horses were fitted with markers and inertial motion sensors (IMS).

Category: Equine - Gait analysis
Authors: Thilo Pfau, Narelle C. Stubbs, LeeAnn J. Kaiser, Lucy E. A. Brown, Hilary M. Clayton
Journal: American Journal of Veterinary Research

Objective—To determine whether body lean angle could be predicted from circle radius and speed in horses during lunging and whether an increase in that angle would decrease the degree of movement symmetry (MS).

Animals—11 medium- to high-level dressage horses in competition training.

Category: Equine - Gait analysis
Authors: Lisa Kruse, Jennifer Salau, Imke Traulsen, Joachim Krieter
Journal: Journal of Equine Veterinary Science

The objective of the present study was to illustrate the possibilities of wavelet filtering to denoise hoof-acceleration data measured on different surfaces. Further, three variables from the time-domain acceleration signal and two variables from the single-sided amplitude spectrum of the Fourier-transformed signal were statistically analyzed to detect the differences between the riding surfaces as well as to compare the results of the different variables. For data recording, six Warmblood horses were trotted on five different riding surfaces.

Category: Equine - Gait analysis
Authors: Maarten Oosterlinck, Frederik Pille, Danse C. Sonneveld, Annemiek M. Oomen, Frank Gasthuys, Willem Back
Journal: Veterinary Journal

The aim of this study was to evaluate the accuracy of the vertical force curve of a pressure plate (PP) using dynamic calibration with a force plate (FP) in six sound Warmblood horses. The animals were walked and trotted over a combined PP–FP system sampling at 250 Hz. Five valid measurements of each forelimb were collected. The recalibration factor (RF), the ratio between the calibrated and raw PP data, was evaluated in each timeframe throughout the stance phase.

Category: Equine - Gait analysis
Authors: Sandra D. Starke, Egbert Willems, Stephen A. May, Thilo Pfau
Journal: Veterinary Journal

Trotting a horse in circles is a standard and important part of the subjective equine lameness examination, yet objective data on this form of locomotion are sparse. The aim of this study was to investigate the effect of trotting in a circle on head and trunk movement symmetry. Vertical movements of the head, withers, os sacrum and left and right tuber coxae were measured using inertial sensors as 12 sound horses were trotted on a hard surface in a straight line and in a circle on both reins.

Category: Equine - Gait analysis