Motion Tracking: No Silver Bullet, but a Respectable Arsenal
IEEE Computer Graphics and Applications
Remote physiotherapy treatments using wireless body sensor networks
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Comparison of Orientation Filter Algorithms for Realtime Wireless Inertial Posture Tracking
BSN '09 Proceedings of the 2009 Sixth International Workshop on Wearable and Implantable Body Sensor Networks
Review: Wireless sensor networks for rehabilitation applications: Challenges and opportunities
Journal of Network and Computer Applications
Evaluating rehabilitation exercise performance using a single inertial measurement unit
Proceedings of the 7th International Conference on Pervasive Computing Technologies for Healthcare
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The paper illustrates a prototype of an end-to-end service to support unassisted rehabilitation of motor functions. The core of the developed solution is a system able to analyze the patient movements during the execution of the prescribed exercises. The motion analysis relies on real-time evaluations of biomechanical parameters, derived from inertial and magnetic data provided by a wireless body sensor network, worn by the patient while he is doing his exercises. The method uses an approach based on complementary filters and addresses a number of challenges, such as compensating the incorrect positioning of motes and managing perturbations of the Earth magnetic field. Besides, the solution provides the patient with a number of "coaching functions", aimed at helping him in getting the best from his training at home, and with a videoconferencing tool to be used whenever the direct evaluation of the therapist is needed. Although this system can have a wider application field, in this work the focus is on the knee rehabilitation after the anterior cruciate ligament (ACL) reconstruction, in order to demonstrate the suitability of this solution to address specific clinical requirements. Preliminary results on this case study are provided.