Hand movement compensation for patients with Parkinson´s disease based on polar coordination system with varied origin

Parkinson´s disease (PD) is a common movement disorder caused from the neurological dysfunction in basal ganglia. Patients with Parkinson´s disease have serious movement problems, such as movement disorders, tremor and rigidity. In this study, a new technique of hand movement compensation for patients with Parkinson´s disease based on spiral drawing tasks was proposed. In order to extract the hand movement feature of patients with Parkinson´s disease, the polar coordination system with varied origin was used to gain characteristic parameters more accurately. The compensation model was constructed by using the parameters obtained in spiral drawing tasks, and we also do simulation under this model to verify the effectiveness. The simulation results proved that the proposed compensation technique will be effective for assisting the movement of patients with Parkinson´s disease.