Highlights
- •Design and manufacture a wrist rehabilitation device for wrist joints that integrates with an interactive game.
- •The game interface is designed so that users can easily adjust the game parameters depending on recovery status.
- •The patient’s training effort is recorded during exercise so therapists can assess the patient’s condition.
Abstract
In this paper, a wrist rehabilitation device integrated with an interactive game is developed. The device is designed for flexion/extension and ulnar/radial motions. The motion of the wrist joint is measured by an optical encoder. A hall sensor is also used to measure the force emitted from the DC motor. These data are fed back to the interactive gaming environment to create the movement of goals in the video game. There are two types of interactive games designed. The first requires the practitioner to move their wrist to achieve a specific goal. The second exercise requires the practitioner to move their wrist joint continuously to reach moving targets. In the game interface, therapists can easily adjust training intensity, training time, and change training limits depending on the recovery status of the patients. At the same time, it also records the patient’s training efforts and monitors visual graphs of performance during exercise. The experiments were conducted to tune the games and to get a preliminary evaluation of the device. The feedback from the patients and therapists are recorded to improve the device and game interfaces. Game parameters are adjusted during the patient’s exercise process under the supervision of a physiotherapist. The values of rotation angle and torque are collected and then presented in graphs so that physiotherapists can assess the patient’s recovery status. The results show that the patients enjoy the games. The therapist is satisfied with the game interface and says that the games are intuitive and easy to play.
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Fig. 4. The realistic prototype.
TBI Rehabilitation 