EquiMoves: A Wireless Networked Inertial Measurement System for Objective Examination of Horse Gait.
Abstract: In this paper, we describe and validate the EquiMoves system, which aims to support equine veterinarians in assessing lameness and gait performance in horses. The system works by capturing horse motion from up to eight synchronized wireless inertial measurement units. It can be used in various equine gait modes, and analyzes both upper-body and limb movements. The validation against an optical motion capture system is based on a Bland-Altman analysis that illustrates the agreement between the two systems. The sagittal kinematic results (protraction, retraction, and sagittal range of motion) show limits of agreement of ± 2.3 degrees and an absolute bias of 0.3 degrees in the worst case. The coronal kinematic results (adduction, abduction, and coronal range of motion) show limits of agreement of - 8.8 and 8.1 degrees, and an absolute bias of 0.4 degrees in the worst case. The worse coronal kinematic results are most likely caused by the optical system setup (depth perception difficulty and suboptimal marker placement). The upper-body symmetry results show no significant bias in the agreement between the two systems; in most cases, the agreement is within ±5 mm. On a trial-level basis, the limits of agreement for withers and sacrum are within ±2 mm, meaning that the system can properly quantify motion asymmetry. Overall, the bias for all symmetry-related results is less than 1 mm, which is important for reproducibility and further comparison to other systems.
Publication Date: 2018-03-13 PubMed ID: 29534022PubMed Central: PMC5877382DOI: 10.3390/s18030850Google Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
Summary
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The research article presents and verifies the EquiMoves system, designed for horse veterinarians to evaluate lameness and gait in horses by recording equine motion using synchronized wireless units.
Overview of the EquiMoves System
- EquiMoves is a system developed to assist equine veterinarians in the objective evaluation of horse gait and identifying any lameness issues.
- The system uses up to eight synchronized wireless inertial measurement units to capture the horse’s movements. These units can measure various gait modes, analyze both upper-body, and limb movements.
The Validation Process
- The research validates the effectiveness of this system by comparing it to an optical motion capture system and uses a Bland-Altman analysis to illustrate the agreement between the two systems.
- It examines the results for both sagittal and coronal kinematic movements, ranging from protraction and retraction to abduction and adduction.
- The sagittal kinematic results show an absolute bias of 0.3 degrees at worst case scenario, and the coronal kinematic results show an absolute bias of 0.4 degrees.
- The poorer coronal kinematic results are attributed to the setup of the optical system, such as depth perception difficulty and suboptimal marker placement.
Upper-Body Symmetry Results
- The study also investigates the measurement’s upper-body symmetry, and finds that the EquiMoves system shows no significant bias in this area as compared to the optical system.
- The limits of agreement on a trial-level basis for the withers and sacrum are within ±2 mm, indicating that the system can effectively measure motion asymmetry.
- The overall bias relating to symmetry was less than 1 mm, which underscores the system’s accuracy, reproducibility, and ability to compare well with other systems.
Cite This Article
APA
Bosch S, Serra Bragança F, Marin-Perianu M, Marin-Perianu R, van der Zwaag BJ, Voskamp J, Back W, van Weeren R, Havinga P.
(2018).
EquiMoves: A Wireless Networked Inertial Measurement System for Objective Examination of Horse Gait.
Sensors (Basel), 18(3).
https://doi.org/10.3390/s18030850 Publication
Researcher Affiliations
- Inertia Technology B.V., 7521 AG Enschede, The Netherlands. stephan@inertia-technology.com.
- Department of Computer Science, Pervasive Systems Group, University of Twente, 7522 NB Enschede, The Netherlands. stephan@inertia-technology.com.
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, The Netherlands. F.M.SerraBraganca@uu.nl.
- Inertia Technology B.V., 7521 AG Enschede, The Netherlands. mihai@inertia-technology.com.
- Inertia Technology B.V., 7521 AG Enschede, The Netherlands. raluca@inertia-technology.com.
- Inertia Technology B.V., 7521 AG Enschede, The Netherlands. berendjan@inertia-technology.com.
- Rosmark Consultancy, 6733 AA Wekerom, The Netherlands. info@rosmark.nl.
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, The Netherlands. W.Back@uu.nl.
- Department of Surgery and Anaesthesia of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium. W.Back@uu.nl.
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, The Netherlands. r.vanweeren@uu.nl.
- Department of Computer Science, Pervasive Systems Group, University of Twente, 7522 NB Enschede, The Netherlands. p.j.m.havinga@utwente.nl.
MeSH Terms
- Animals
- Biomechanical Phenomena
- Gait
- Horses
- Lameness, Animal
- Movement
- Range of Motion, Articular
- Reproducibility of Results
- Wireless Technology
Conflict of Interest Statement
Mihai Marin-Perianu, Raluca Marin-Perianu and Paul Havinga founded Inertia-Technology B.V. (Enschede, The Netherlands), which sells the inertial sensor system (ProMove-mini) that is used as the basis of the EquiMoves system, which is evaluated in this study. Stephan Bosch and Berend-Jan van der Zwaag are employees of Inertia-Technology B.V.
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