OBJECTIVE: To assess the force plate as a diagnostic aid in equine locomotor abnormalities, particularly for abnormalities such as navicular disease that do not have specific diagnostic criteria. ANIMALS: 17 Thoroughbreds without observable locomotor abnormalities (group A), 6 Thoroughbreds with superficial digital flexor tendon injury (group B), and 8 Thoroughbreds with navicular disease (group C). PROCEDURE: Using a force plate, ground reaction force patterns were recorded at the trot. Peak limb vertical force and force/time curve parameters were derived from 4 identifiable points at the beginning and end of vertical and craniocaudal horizontal plots. Principal component analysis (PCA) of group-A data was undertaken on beginning and end of stride data, and the first 2 components were represented graphically. The PCA rotation matrices were applied to equivalent data for horses of groups B and C. RESULTS: Asymmetry of peak vertical force (PVF) could not be differentiated among groups A, B, and C. Values for group-B horses, however, were significantly outside mean group-A values on the PCA plot for beginning of stride phase variables. Group-B data were within the group-A range for end of stride phase variables. Values for group-C horses were significantly outside the group-A range for beginning of stride phase variables and were outside mean group-A values for end of stride phase variables. CONCLUSIONS: PCA of force/time data provides a sensitive method to evaluate the force/time curve associated with 2 specific injury/disease processes. CLINICAL RELEVANCE: Horses alter weight-bearing in biomechanically distinct ways, thus creating potential for the force plate to become an important diagnostic and prognostic tool.
OBJECTIVE: To assess the force plate as a diagnostic aid in equinelocomotor abnormalities, particularly for abnormalities such as navicular disease that do not have specific diagnostic criteria. ANIMALS: 17 Thoroughbreds without observable locomotor abnormalities (group A), 6 Thoroughbreds with superficial digital flexor tendon injury (group B), and 8 Thoroughbreds with navicular disease (group C). PROCEDURE: Using a force plate, ground reaction force patterns were recorded at the trot. Peak limb vertical force and force/time curve parameters were derived from 4 identifiable points at the beginning and end of vertical and craniocaudal horizontal plots. Principal component analysis (PCA) of group-A data was undertaken on beginning and end of stride data, and the first 2 components were represented graphically. The PCA rotation matrices were applied to equivalent data for horses of groups B and C. RESULTS: Asymmetry of peak vertical force (PVF) could not be differentiated among groups A, B, and C. Values for group-B horses, however, were significantly outside mean group-A values on the PCA plot for beginning of stride phase variables. Group-B data were within the group-A range for end of stride phase variables. Values for group-C horses were significantly outside the group-A range for beginning of stride phase variables and were outside mean group-A values for end of stride phase variables. CONCLUSIONS: PCA of force/time data provides a sensitive method to evaluate the force/time curve associated with 2 specific injury/disease processes. CLINICAL RELEVANCE: Horses alter weight-bearing in biomechanically distinct ways, thus creating potential for the force plate to become an important diagnostic and prognostic tool.
Authors: Ineke H Smit; Elin Hernlund; Harold Brommer; P René van Weeren; Marie Rhodin; Filipe M Serra Bragança Journal: Equine Vet J Date: 2021-06-23 Impact factor: 2.692
Authors: Blandine Poulet; Roberto de Souza; Chancie B Knights; Clive Gentry; Alan M Wilson; Stuart Bevan; Yu-Mei Chang; Andrew A Pitsillides Journal: Arthritis Rheumatol Date: 2014-07 Impact factor: 10.995
Authors: Mustajab H Mirza; Prakash Bommala; Heather A Richbourg; Nathalie Rademacher; Michael T Kearney; Mandi J Lopez Journal: Front Vet Sci Date: 2016-04-13