Force Tracking System for Training of Hand Function in Stroke Patients

We present a novel tracking system for the rehabilitation of hand function following stroke. The system consists of a compact assessment system with two measuring objects of different shapes, which can be connected to a personal computer for data acquisition and visual feedback. The system was used in connection with four tracking tasks which were applied to train and evaluate patient's grip strength and grip force control. The method was applied as a supplemental therapy for 10 post-stroke patients. Training with the tracking system showed significant improvements in the grip force control in 8 out of 10 patients. The patients reduced the tracking error, improved the grasp stability and enhanced the release of the grip. The proposed tracking method is intended to be used to improve and evaluate hand functionality in post-stroke patients and patients after hand injury