WEARABLE DEVICE TREMOR SUPPRESSION FOR PARKINSON DISEASES-R1

Abstract

Parkinson’s disease (PD) is a progressive neurological disorder that affects movement, often causing tremors that interfere with daily life. The purpose of this paper is to design and develop a portable tremor suppression device to improve the quality of life of people with Parkinson’s disease. The device detects hand tremors using inertial sensors (MPU6050) and applies an active suppression mechanism through coin-type vibration motors that counteract involuntary movements in real time. The system was designed to be lightweight, comfortable, and non-invasive, making it suitable for long-term daily use. The project involved several stages, including sensor data acquisition, signal processing, control system design, and hardware integration, all of which followed an iterative, test-based methodology. Multiple tests were conducted to evaluate the effectiveness of the device in reducing the amplitude of tremor without limiting voluntary motor function. The final results of the evaluation showed significant improvements in all patients, where the tremor amplitude was reduced by up to 60%, the signal energy decreased by more than 50% in 4 of 5 subjects and the final hand velocity decreased by an average of 30–40%, while the device maintained an average response time of 85 milliseconds, ensuring real-time feedback. These findings confirm the system's ability to substantially reduce the intensity of tremors without affecting natural movement, presenting a reliable, low-cost assistive solution for people with Parkinson’s disease. This project contributes to the expanding field of wearable biomedical devices by offering a practical, user-oriented approach to the management of Parkinson’s tremors.

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