title: Comparison of microgyro-based measurements of equine metatarsal/metacarpal bone to a high speed video locomotion analysis system during treadmill locomotion.
abstract: The aim of this study was to compare an inertial motion system (IMS) to an optical based locomotion analysis system measuring limb sagittal segment angles in horses at the walk and trot. The metatarsal/metacarpal bones of two horses (20 trials) were fitted with optical system markers and an IMS. Between the systems, measuring range of motion (ROM) of the sagittal metatarsal/metacarpal bone angles, the IMS measured higher ROM than the optical system (bias 1.6°; precision at 1.96 standard deviation 1.9°). The same angle data were used to assess inter-limb symmetry by calculating phase shift between the limbs within a stride. This showed essentially no bias and the precision was 0.025%. The IMS has potential for quantification of ROM and phase shift of equine distal limb movement.
authors.affiliation: Unit of Equine Studies, Faculty of Veterinary Medicine and Animal Husbandry, Swedish University of Agricultural Sciences, Box 7046, SE-750 07 Uppsala, Sweden. Electronic address: lars.roepstorff@slu.se.
authors.forename: L
authors.initials: L
authors.lastname: Roepstorff
authors.affiliation: Equine Department, University of Zürich, Zürich, Switzerland.
authors.forename: T
authors.initials: T
authors.lastname: Wiestner
authors.affiliation: Equine Department, University of Zürich, Zürich, Switzerland.
authors.forename: M A
authors.initials: MA
authors.lastname: Weishaupt
authors.affiliation: Department of Clinical Sciences, Faculty of Veterinary Medicine and Animal Husbandry, Swedish University of Agricultural Sciences, Box 705, SE-750 07 Uppsala, Sweden.
authors.forename: E
authors.initials: E
authors.lastname: Egenvall
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D005080:Exercise Test / Q000662:veterinary*; D006736:Horses / Q000502:physiology*; D008124:Locomotion / Q000502:physiology*; D050279:Metacarpal Bones / Q000502:physiology*; D008682:Metatarsal Bones / Q000502:physiology*; D014741:Video Recording
keywords: Horses; Inertial motion sensor