Upper Limb Portable Motion Analysis System Based on Inertial Technology for Neurorehabilitation Purposes

Sensors

Rodrigo Pérez¹  Úrsula Costa³  Marc Torrent²  Javier Solana¹  Eloy Opisso³  César Cres¹  Josep M. Tormos³  Josep Medina³ 

[1] Bioengineering and Telemedicine Centre, ETSI Telecomunicación, Universidad Politécnica de Madrid, 28040, Madrid, Spain; E-Mails:;CETEMMSA Research Centre, 08301, Mataró, Spain; E-Mail:;Institut Guttmann Neurorehabilitation Hospital, 08916, Barcelona, Spain; E-Mails:

关键词: motion tracking;    inertial sensors;    neurorehabilitation;    upper limb;    biomechanical model;   

DOI  :  10.3390/s101210733

来源: mdpi

【 摘 要 】

Here an inertial sensor-based monitoring system for measuring and analyzing upper limb movements is presented. The final goal is the integration of this motion-tracking device within a portable rehabilitation system for brain injury patients. A set of four inertial sensors mounted on a special garment worn by the patient provides the quaternions representing the patient upper limb’s orientation in space. A kinematic model is built to estimate 3D upper limb motion for accurate therapeutic evaluation. The human upper limb is represented as a kinematic chain of rigid bodies with three joints and six degrees of freedom. Validation of the system has been performed by co-registration of movements with a commercial optoelectronic tracking system. Successful results are shown that exhibit a high correlation among signals provided by both devices and obtained at the Institut Guttmann Neurorehabilitation Hospital.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.