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论文类型：会议论文

发表时间：2017-01-01

收录刊物：SCIE、CPCI-S

页面范围：622-626

关键字：gait analysis; gait disorders; MEMS IMU; inertial sensors; rehabilitation assessment

摘要：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.