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Sammanfattning

The first descriptions of equine gait date from antiquity. However, it was not until the end of the nineteenth century that correct footfall patterns of the faster gaits could be determined thanks to the invention of photography, which overcame the limitations of the human eye. The motion of a living being can be described quantitatively by measuring the kinetics: the forces that are generated by locomotion, and the kinematics, or the change in three-dimensional position of the body and the related spatiotemporal parameters such as acceleration, velocity, stride frequency and stride length. Electromyography may help in determining timing and order of contractions of the muscles that generate locomotion and hence in the determination of motion chains. Additional tools that have been developed to measure external influences exerted on the horse (mostly by the rider) include rein tensiometers, saddle pressure mats and force-measuring stirrups. Modern objective quantitative gait analysis techniques used in clinical practice focus on the study of kinematics. They do so either through camera-based optical motion capture systems that use several cameras to detect markers placed on the horse that moves in a calibrated space, or by the use of horse-mounted inertial measurement units (IMUs) that mathematically derive kinematic information from the output of the accelerometer, gyroscope and magnetometer that they contain. A novel method that is being developed is the application of computer vision in which machine learning techniques are used to extract the motion of a horse from video recorded by a single camera.

Nyckelord

computer vision; electromyography; gait analysis; inertial measurement unit; kinematics; kinetics; optical motion capture

Publicerad i

Titel: Equine Sports Medicine and Surgery
Utgivare: Elsevier

SLU författare

UKÄ forskningsämne

Medicinsk biovetenskap

Publikationens identifierare

  • DOI: https://doi.org/10.1016/B978-0-7020-8370-9.00015-1
  • ISBN: 9780702083709

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/142753