Validity of inertial sensor based 3D joint kinematics of static and dynamic sport and physiotherapy specific movements

PloS One
Wolfgang TeuflGabriele Bleser

Abstract

3D joint kinematics can provide important information about the quality of movements. Optical motion capture systems (OMC) are considered the gold standard in motion analysis. However, in recent years, inertial measurement units (IMU) have become a promising alternative. The aim of this study was to validate IMU-based 3D joint kinematics of the lower extremities during different movements. Twenty-eight healthy subjects participated in this study. They performed bilateral squats (SQ), single-leg squats (SLS) and countermovement jumps (CMJ). The IMU kinematics was calculated using a recently-described sensor-fusion algorithm. A marker based OMC system served as a reference. Only the technical error based on algorithm performance was considered, incorporating OMC data for the calibration, initialization, and a biomechanical model. To evaluate the validity of IMU-based 3D joint kinematics, root mean squared error (RMSE), range of motion error (ROME), Bland-Altman (BA) analysis as well as the coefficient of multiple correlation (CMC) were calculated. The evaluation was twofold. First, the IMU data was compared to OMC data based on marker clusters; and, second based on skin markers attached to anatomical landmarks. The first evaluati...Continue Reading

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Citations

Nov 16, 2019·Computer Methods in Biomechanics and Biomedical Engineering·Bertram TaetzGabriele Bleser
Apr 5, 2020·Sensors·Mirel AjdaroskiAmanda Esquivel
Aug 6, 2020·Sensors·Matthew P MavorRyan B Graham
Feb 13, 2021·Sensors·Basilio PueoJose M Jimenez-Olmedo
Oct 22, 2020·Journal of Hand Surgery Global Online·Naoto IenagaHideo Saito
Nov 14, 2020·Sensors·Javier Martínez-GramageEva Segura-Ortí
Sep 27, 2020·Medical Engineering & Physics·Kimi D DahlScott Tashman
Aug 10, 2021·Frontiers in Bioengineering and Biotechnology·Li-Wei HungTung-Wu Lu
Aug 22, 2021·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Lionel ChiaEvangelos Pappas
Jan 22, 2022·PloS One·Corliss Zhi Yi ChooJohn Komar

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Software Mentioned

OptiTrack
Visual 3D Motion
Matlab
Xsens MVN Biomech

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