Inertial Measurement Units for Clinical Movement Analysis: Reliability and Concurrent Validity

Sensors
Mohammad Al-AmriJennifer L Davies

Abstract

The aim of this study was to investigate the reliability and concurrent validity of a commercially available Xsens MVN BIOMECH inertial-sensor-based motion capture system during clinically relevant functional activities. A clinician with no prior experience of motion capture technologies and an experienced clinical movement scientist each assessed 26 healthy participants within each of two sessions using a camera-based motion capture system and the MVN BIOMECH system. Participants performed overground walking, squatting, and jumping. Sessions were separated by 4 ± 3 days. Reliability was evaluated using intraclass correlation coefficient and standard error of measurement, and validity was evaluated using the coefficient of multiple correlation and the linear fit method. Day-to-day reliability was generally fair-to-excellent in all three planes for hip, knee, and ankle joint angles in all three tasks. Within-day (between-rater) reliability was fair-to-excellent in all three planes during walking and squatting, and poor-to-high during jumping. Validity was excellent in the sagittal plane for hip, knee, and ankle joint angles in all three tasks and acceptable in frontal and transverse planes in squat and jump activity across joint...Continue Reading

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Citations

Jul 11, 2018·Journal of Applied Biomechanics·Saud F AlsubaiePatrick J Sparto
May 7, 2019·European Journal of Sport Science·Rodrigo BiniMichael Kingsley
Oct 17, 2019·Sensors·Przemysław Skurowski, Magdalena Pawlyta
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Mar 15, 2021·Journal of Bodywork and Movement Therapies·Alisa Drapeaux, Kevin Carlson

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Software Mentioned

in Gait
VICON Plug - in Gait
VICON Nexus
MVN BIOMECH studio
MVN BIOMECH
Matlab
MVN
Xsens BIOMECH
VICON Plug - In - Gait
mvnx

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