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Sensors 2014, 14(5), 8430-8446; doi:10.3390/s140508430

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

Dipartimento di Energia, Ingegneria dell'Informazione, e Modelli Matematici (DEIM), University of Palermo, Viale delle Scienze, Palermo, Italy
Author to whom correspondence should be addressed.
Received: 14 February 2014 / Revised: 29 March 2014 / Accepted: 7 May 2014 / Published: 13 May 2014
(This article belongs to the Section Physical Sensors)
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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.
Keywords: gait analysis; joint angles estimation; inertial sensors gait analysis; joint angles estimation; inertial sensors

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Alonge, F.; Cucco, E.; D'Ippolito, F.; Pulizzotto, A. The Use of Accelerometers and Gyroscopes to Estimate Hip and Knee Angles on Gait Analysis. Sensors 2014, 14, 8430-8446.

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