A wearable walking monitoring system for gait analysis.
In this paper, both hardware and software design to develop a wearable walking monitoring system for gait analysis are presented. For hardware, the mechanism proposed is adaptive to different individuals to wear, and the portability of the design makes it easy to perform outdoor experiments. Four force sensors and two angle displacement sensors were used to measure plantar force distribution and the angles of hip and knee joints. For software design, a novel algorithm was developed to detect different gait phases and the four gait periods during the stance phase. Furthermore, the center of ground contact force was calculated based on the relationships of the force sensors. The results were compared with the VICON motion capture system and a force plate for validation. Experiments showed the behavior of the joint angles are similar to VICON system, and the average error in foot strike time is less than 90 ms.
Department of Bio-Industrial Mechatronics Engineering, National Taiwan University, Taipei 106, Taiwan. b97611016@ntu.edu.tw
Tsung-Han
TH
Hsieh
An-Chih
AC
Tsai
Cha-Wei
CW
Chang
Ka-Hou
KH
Ho
Wei-Li
WL
Hsu
Ta-Te
TT
Lin
D001696:Biomechanical Phenomena; D004867:Equipment Design; D005684:Gait; D006621:Hip Joint / Q000503:physiopathology; D006801:Humans; D007700:Kinetics; D007719:Knee Joint / Q000503:physiopathology; D008297:Male; D015233:Models, Statistical; D018670:Monitoring, Ambulatory / Q000379:methods*; D015203:Reproducibility of Results; D012984:Software; D013314:Stress, Mechanical; D013997:Time Factors; D016138:Walking; D055815:Young Adult