Indexed by:会议论文

Date of Publication:2017-01-01

Included Journals:SCIE、CPCI-S

Page Number:622-626

Key Words:gait analysis; gait disorders; MEMS IMU; inertial sensors; rehabilitation assessment

Abstract:Gait disorders may easily be recognized by a health care professional. However, quantification of these abnormalities would be desirable for diagnostic and therapeutic use. A gait analysis system constructed of dual foot-mounted Inertial Measurement Units (IMUs) has been developed in this paper, which can be referred to as an Inertial Navigation System (INS). Such system can provide an effective way for estimating gait parameters, by using an inequality-constrained Zero-Velocity-Updates (ZUPT)-aided INS algorithm. Based on the quantified gait parameters, gait performance can be characterized to assess the rehabilitation process of patients with gait disorders. Experiments were performed during level walking along a straight-line, which has less requirements for the working environment compared with that using an optical motion capture system. For comparison purpose, both healthy subjects and cerebral thrombosis patients are recruited. The experiment results demonstrated that gait analysis with foot-mounted IMUs could give a close examination of the gait disorders, which may be helpful to the health care professionals during the course of their treatment plan.