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Correction models for skin displacement in equine kinematics gait analysis

1992; Elsevier BV; Volume: 12; Issue: 3 Linguagem: Inglês

10.1016/s0737-0806(06)81478-4

1542-7412

P. René van Weeren, Antonie J. van den Bogert, A. Barneveld,

Genetic and phenotypic traits in livestock

General mathematical models are presented to be used in equine kinematic gait analysis for the correction of the biological error that is caused by sliding of the skin over the underlying bony landmarks. Ten sites in the front limb and 8 in the hind limb were investigated. In the distal parts of the limbs a linear relationship with the angle of the adjacent joint was found. The more complex pattern in the proximal parts of the limbs could be satisfactorily represented by truncated Fourier series. Analyses were principally done in the Dutch Warmblood horse, but investigations in other breeds were carried out to verify the general applicability of the models. Skin displacement appeared to be negligible in the lower parts of the limbs, but reached large values in proximally located sites such as the caudal part of the greater trochanter of the femur. It is concluded that skin displacement in equine gait analysis may account for major errors in applied biomechanical research and therefore should be corrected, although it may be of less importance for clinical applications.