ĐẶC ĐIỂM RUN GHI BẰNG GIA TỐC KẾ KẾT HỢP ĐIỆN CƠ BỀ MẶT Ở BỆNH NHÂN PARKINSON TẠI BỆNH VIỆN ĐẠI HỌC Y HÀ NỘI

Abstract

Background: Tremor in Parkinson's disease (PD) has been extensively studied worldwide, but data on tremor characteristics in Vietnamese patients remain limited. The use of accelerometers combined with surface electromyography (sEMG) can provide objective and quantitative information on tremor characteristics, supporting accurate diagnosis. Objective: To describe the characteristics of tremor recorded using accelerometers combined with sEMG in Parkinson's disease patients at Hanoi Medical Universiti Hospital. Methods: A cross-sectional descriptive study was conducted on 51 patients diagnosed with Parkinson's disease who consulted Hanoi Medical Universiti Hospital from July 2024 to May 2025. Tremor was recorded using accelerometers combined with sEMG in various conditions: at rest, during posture maintenance, while lifting a heavy object, and during mental concentration tasks. Results: All patients exhibited resting tremor. The tremor frequency at rest, during posture maintenance, and while lifting a heavy object ranged from 4 to 6 Hz. During the mental concentration task, tremor frequency remained largely unchanged, whereas the tremor amplitude on electromyography (EMG) increased by approximately 1.5 to 2.3 times compared to the resting state. Muscle contraction patterns in Parkinson's disease were characterized by alternating activation between agonist and antagonist muscle groups. Tremor latency was observed when transitioning from rest to posture maintenance in 88.2% of patients. Conclusion: Tremor characteristics recorded using accelerometers combined with sEMG (including frequency, amplitude, latency, and muscle contraction patterns) provide valuable quantitative information for diagnosing and differentiating Parkinson's disease from other tremor-related disorders.