Lower Limb Rehabilitation System Based on Wearable Device and Virtual Reality

Nowadays, rehabilitation training and assessment at home or in the community is a new trend with great potential to provide long-term assistance to improve the quality of care for elderly people or patients with motor dysfunction. An intelligent lower limb rehabilitation system using wearable devices and virtual reality technology is presented in this paper. The proposed system can monitor the angle and acceleration of joints of the lower limb in real time through inertial sensors, and through communication with virtual reality software, users can visualize the rehabilitation training process and control virtual games. It also can assess the user's lower limb motor function based on the game results and the kinematic signals collected during the game. The design of the wearable device, including hardware design and signal pre-processing, and the virtual game design based on Unity 3D are introduced. The test results show that the lower limb rehabilitation system proposed in this paper is reliable and effective.