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KMID : 1137820100310030240
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의공학회지
2010 Volume.31 No. 3 p.240 ~ p.244
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Measurement and Comparison of Finger Tapping Movement in Patients with Idiopathic Parkinson’s Disease and Normal Subjects using Gyrosensor
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Kim Ji-Won
Kwon Yu-Ri
Lee Jae-Ho
Eom Gwang-Moon
Kwon Do-Young
Koh Seung-Beom
Park Byung-Kyu
Hong Jung-Hwa
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Abstract
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The purpose of this study is to compare finger tapping (FT) movement of patients with Parkinson’s disease (PD) with normal subjects. A gyrosensor system was used for the measurement of FT movement, because it provides angular velocity free from the gravitational artifact and it can be used during clinical FT test listed in unified PD rating scale (UPDRS). Forty PD patients (age: 65.7 11.1 yrs, H&Y stage:2.3 0.5), 14 age-matched elderly subjects (653.9 yrs) and 17 healthy young subjects (242.1yrs) participated in this study. Angular velocity of finger tapping movement was measured in both right and left index finger. As quantitative measures, root-mean-squared (RMS) angular velocity, RMS angle, peak power and total power were used. ANOVA showed that all measures were significantly different among three groups (p<0.001) in all quantitative measures. Post-hoc test revealed that all quantitative measures except peak power in patients with PD were significantly smaller than in both healthy elderly and young subjects (p<0.01). This suggests that the measures developed in this study can distinguish patients with PD from normal subjects.
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KEYWORD
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Parkinson’s disease, UPDRS, gyro sensor, angular velocity, quantification, finger-tapping
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