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Updated: May 14, 2026
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Video Movement Analysis Using Smartphones (ViMAS): A Pilot Study
Published on: March 14, 2017
Comparison Between Inertial Sensor and Video-Based Detection of Spatiotemporal Limb Movement Parameters During Equine
Frederic Marin1,2, Chloé Giraudet2, Pauline Gaulmin3
1Department of Movement Science for Prevention and Rehabilitation, Institute of Human Movement Science and Health, Chemnitz University of Technology, D-09111 Chemnitz, Germany.
Sensors (Basel, Switzerland)
|May 13, 2026
Summary
Inertial sensors reliably measure equine swimming kinematics, especially hindlimb movement, aiding injury prevention and rehabilitation. This technology offers objective spatiotemporal data for therapeutic outcome evaluation.
Area of Science:
- Equine Science
- Biomechanical Analysis
- Rehabilitation Technology
Background:
- Equine swimming is vital for injury prevention and rehabilitation.
- Objective analysis of equine swimming kinematics is limited.
- Spatiotemporal parameters are crucial for assessing therapeutic outcomes but difficult to measure in water.
Purpose of the Study:
- To evaluate the reliability of inertial sensors for detecting equine swimming spatiotemporal events.
- To compare inertial sensor data with veterinarian-observed video analysis.
- To assess the suitability of inertial sensors for objective equine swimming analysis.
Main Methods:
- Inertial sensors were placed on equine distal limbs.
- Equine swimming kinematics were recorded.
- Data from inertial sensors were compared to video-based detection by veterinarians.
- Spatiotemporal parameters, including cycle duration and duty factor, were analyzed.
Main Results:
- Hindlimb spatiotemporal parameters showed excellent agreement (ICC = 0.96) between inertial sensors and video analysis.
- Bland-Altmann analysis for hindlimb cycle duration indicated limits of agreement within 50 ms.
- Hindlimb swimming duty factor showed moderate to excellent agreement (ICC = 0.82).
- Forelimb results were mixed, suggesting cautious use of these parameters.
Conclusions:
- Inertial sensors provide reliable spatiotemporal measurements for equine hindlimb swimming.
- This technology is well-suited for objective analysis of equine swimming kinematics.
- Further validation is needed for forelimb measurements in equine swimming analysis.
