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관성센서 및 로드셀 인솔 결합형 보행측정 시스템 개발: 예비 연구

Development of Gait Measurement System Combined with IMU and Loadcell Insole: A Pilot Study

Journal of the Korean Society for Precision Engineering 2022;39(9):657-662.
Published online: September 1, 2022

1 한국한의학연구원 디지털임상연구부

2 건국대학교 과학기술대학 바이오메디컬공학과

1 Digital Health Research Division, Korea Institute of Oriental Medicine

2 Department of Biomedical Engineering, College of Science & Technology, Konkuk University

#E-mail: jschoi98@kku.ac.kr, TEL: +82-43-840-3768
• Received: May 31, 2022   • Revised: July 4, 2022   • Accepted: July 5, 2022

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Citations

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  • Development of a Trunk Balance Training and Assessment System based on an Inertial Sensor Integrated with a Tilting Chair
    Jeong-Woo Seo, Yeong-Gi Kim
    Journal of the Korean Society for Precision Engineering.2026; 43(8): 895.     CrossRef

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Development of Gait Measurement System Combined with IMU and Loadcell Insole: A Pilot Study
J. Korean Soc. Precis. Eng.. 2022;39(9):657-662.   Published online September 1, 2022
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J. Korean Soc. Precis. Eng.. 2022;39(9):657-662.   Published online September 1, 2022
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Development of Gait Measurement System Combined with IMU and Loadcell Insole: A Pilot Study
Image Image Image Image Image Image Image
Fig. 1 IMU sensor system (E2box V4 system with receiver)
Fig. 2 Loadcell Insole
Fig. 3 Data acquisition system by NI myRIO box
Fig. 4 Attachment of gait acquisition sensor system and marker
Fig. 5 Definition of lower-limb joint angle
Fig. 6 Joint angle of gait by IMU & Motion camera
Fig. 7 The GRF of gait by loadcell insole & force plate
Development of Gait Measurement System Combined with IMU and Loadcell Insole: A Pilot Study
Hip Knee Ankle
IMU range 140.10-168.42 135.15-175.65 98.56-123.16
Motion range 123.36-163.19 133.01-175.17 106.81-146.65
Error [%] 7.65 2.28 11.96
RMSE 12.47 1.81 13.60
Corr. 0.47 0.94 0.40
Left Right
Loadcell F-Plate Loadcell F-Plate
Range -1.2-86.2 -0.3-90.1 -0.9-74.5 -0.2-74.7
Error 6.92 10.59
RMSE 3.63 2.12
Corr. 0.99 0.98
Table 1 Comparison of measured kinematic data

(RMSE: root mean square error, Corr.: Pearson’s r)

Table 2 Comparison of measured kinetic data (Vertical GRF)