Preliminary results: A comparison of specific imu-based calibrations for cycling vs. conventional methods.
Journal Title: Journal of Science and Cycling - Year 2016, Vol 5, Issue 2
Abstract
Recent technological advances in MEMS allow considering the biomechanical evaluation of cyclists outside the laboratory (road, track cycling, etc). Indeed, optoelectronical motion capture in cycling is commonely used in laboratory to provide relevant biomechanical parameters associated to performance optimization and/or injury prevention. However, it does not allow evaluation in ecological and outdoor conditions, which can be counteracted using inertial measurement units (IMU). These sensors give the opportunity to estimate 3D segmental rotations, from which body-to-sensor rotations can be obtained. However, IMUs usually suffer from signal drift and require calibration procedure when accurate 3D joint angles are calculated. This latter calibration procedure is of major interest and is generally based on static or dynamic tasks. However, specific calibration procedures applied to cycling are missing and should be developed for outdoor applications. The aim of this study is to develop specific IMU-based methods for analyzing cycling motion, using calibration tasks based on pedaling motion. This method is compared to conventional methods applied in IMUbased gait analysis.
Authors and Affiliations
Cordillet, S| University Rennes 2, M2S Laboratory (France), Bideau, N. | University Rennes 2, M2S Laboratory (France), Bideau, B. | University Rennes 2, M2S Laboratory (France), Megret A. | French Cycling Federation, Nicolas, G. | University Rennes 2, M2S Laboratory (France)
Keywords
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