Evaluation of a sensor-based system of motion analysis for detection and quantification of forelimb and hind limb lameness in horses.
Abstract: To compare a sensor-based accelerometer-gyroscopic (A-G) system with a video-based motion analysis system (VMAS) technique for detection and quantification of lameness in horses. Methods: 8 adult horses. Methods: 2 horses were evaluated once, 2 had navicular disease and were evaluated before and after nerve blocks, and 4 had 2 levels of shoe-induced lameness, alternatively, in each of 4 limbs. Horses were instrumented with an accelerometer transducer on the head and pelvis, a gyroscopic transducer on the right forelimb and hind feet, and a receiver-transmitter. Signals from the A-G system were collected simultaneously with those from the VMAS for collection of head, pelvis, and right feet positions with horses trotting on a treadmill. Lameness was detected with an algorithm that quantified lameness as asymmetry of head and pelvic movements. Comparisons between the A-G and VMAS systems were made by use of correlation and agreement (kappa value) analyses. Results: Correlation between the A-G and VMAS systems for quantification of lameness was linear and high (r2 = 0.9544 and 0.8235 for forelimb and hind limb, respectively). Quantification of hind limb lameness with the A-G system was higher than measured via VMAS. Agreement between the 2 methods for detection of lameness was excellent (kappa = 0.76) for the forelimb and good (kappa = 0.56) for the hind limb. Conclusions: The A-G system detected and quantified forelimb and hind limb lameness in horses trotting on the treadmill. Because the data are collected wirelessly, this system might be used to objectively evaluate lameness in the field.
Publication Date: 2004-05-15 PubMed ID: 15141889DOI: 10.2460/ajvr.2004.65.665Google Scholar: Lookup
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- Comparative Study
- Journal Article
- Research Support
- Non-U.S. Gov't
- Research Support
- U.S. Gov't
- Non-P.H.S.
Summary
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The research study is about the evaluation of a sensor-based system that uses accelerometers and gyroscopes to monitor and quantify lameness in horses, comparing its effectiveness with a video-based motion analysis system.
Objective of the Study
- This research aimed to compare the efficiency of an accelerometer-gyroscopic (A-G) system with a video-based motion analysis system (VMAS) in detecting and quantifying the degree of lameness in horses.
Methods Used
- A total of eight adult horses were used. Two of the horses were evaluated once, another two had the navicular disease and were evaluated before and after applying nerve blocks. The last four horses had two levels of shoe-induced lameness, which was alternated in each of the four limbs.
- The horses were equipped with an accelerometer transducer on the head and pelvis, a gyroscopic transducer on the right forelimb and hind feet, along with a receiver-transmitter.
- With the horses trotting on a treadmill, signals from the A-G system were simultaneously collected alongside those from the VMAS, with points of capture being the head, pelvis, and right feet positions.
Analysis and Results
- For measuring lameness, an algorithm was used that calculated lameness as asymmetry in the movements of the head and pelvis. The comparison between the A-G system and VMAS was done by use of correlation and agreement (kappa) analyses.
- The research found a high linear correlation between the A-G and VMAS systems for quantifying lameness. The coefficients were 0.9544 for the forelimb and 0.8235 for the hind limb.
- While the quantification of hind limb lameness by the A-G system was found to be higher than that by VMAS, the agreement between the two methods in detecting lameness was found to be excellent for the forelimb (kappa = 0.76) and good for the hind limb (kappa = 0.56).
Conclusions
- The use of the A-G system successfully detected and quantified forelimb and hind limb lameness in horses on a treadmill. This system, which collects data wirelessly, might be applicable for objective field evaluations of lameness in horses.
Cite This Article
APA
Keegan KG, Yonezawa Y, Pai PF, Wilson DA, Kramer J.
(2004).
Evaluation of a sensor-based system of motion analysis for detection and quantification of forelimb and hind limb lameness in horses.
Am J Vet Res, 65(5), 665-670.
https://doi.org/10.2460/ajvr.2004.65.665 Publication
Researcher Affiliations
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, MO 65211, USA.
MeSH Terms
- Acceleration
- Algorithms
- Animals
- Biomechanical Phenomena
- Diagnostic Equipment
- Evaluation Studies as Topic
- Forelimb / physiopathology
- Hindlimb / physiopathology
- Horse Diseases / diagnosis
- Horses
- Lameness, Animal / diagnosis
- Video Recording
Citations
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