Title :
Wearable gait analysis system for ambulatory measurement of kinematics and kinetics
Author :
Guangyi Li ; Tao Liu ; Linyi Gu ; Inoue, Yoshio ; Haojie Ning ; Meimei Han
Author_Institution :
Dept. of Mech. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
A wearable gait analysis system composed of mobile six-axial force plates and multi-axial motion sensors is capable of gait analysis in non-laboratory environment. Triaxial ground reaction force (GRF), triaxial joint angle, joint force and joint moment for the three joints of lower limbs were extracted using the measured data. Presently, we have discussed the components of main axis of these experiment results. GRF, joint angle and joint force showed reasonable agreement with the reference system composed of an optical motion analysis system and stationary force plate (average RMSE of 5.5° and correlation coefficient of 0.94). Only the x-axial moments of ankle and hip showed relatively low consistency.
Keywords :
biomedical measurement; body sensor networks; force measurement; gait analysis; kinematics; mean square error methods; motion measurement; ambulatory measurement; data extraction; joint force; joint moment; kinematics; kinetics; lower limbs; mobile six-axial force plates; multiaxial motion sensors; nonlaboratory environment; optical motion analysis system; stationary force plate; triaxial ground reaction force; triaxial joint angle; wearable gait analysis system; Footwear; Force; Joints; Motion measurement; Optical sensors; Three-dimensional displays; GRF; gait analysis; joint angle; joint force; joint moment; motion sensor; six-axial force plate;
Conference_Titel :
SENSORS, 2014 IEEE
Conference_Location :
Valencia
DOI :
10.1109/ICSENS.2014.6985253
