The Use of Accelerometers and Gyroscopes to Estimate Hip and Knee Angles on Gait Analysis

Sensors

Francesco Alonge²  Elisa Cucco²  Filippo D'Ippolito¹ 

[1] Dipartimento di Energia, Ingegneria dell'Informazione, e Modelli Matematici (DEIM), University of Palermo, Viale delle Scienze, Palermo, Italy;

关键词: gait analysis;    joint angles estimation;    inertial sensors;   

DOI  :  10.3390/s140508430

来源: mdpi

【 摘 要 】

In this paper the performance of a sensor system, which has been developed to estimate hip and knee angles and the beginning of the gait phase, have been investigated. The sensor system consists of accelerometers and gyroscopes. A new algorithm was developed in order to avoid the error accumulation due to the gyroscopes drift and vibrations due to the ground contact at the beginning of the stance phase. The proposed algorithm have been tested and compared to some existing algorithms on over-ground walking trials with a commercial device for assisted gait. The results have shown the good accuracy of the angles estimation, also in high angle rate movement.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.