振戦加速度波形の周波数解析による振戦疾患評価の研究

概要

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The three major symptoms of Parkinson's disease are tremor, rigidity and akmesia The tremor most disturbs the daily life of the patient In order to control the tremor of Parkinson's disease without medicine, we modified the upper limb tremor frequency biofeedback system In this study, we have evaluated the tremor disease by a frequency analysis of a tremor acceleiation waveform Subjects were 48 patients with 36 Parkinson's disease (PD) patients and 12 Essential tremor (ET) patients These mean ages were 69.6 (PD) and 57 8 (ET) Under some conditions, the upper limb tremor accelerations were measured using the upper limb tremor frequency biofeedback system to calculate the peak frequency between 4Hz and 6Hz (LF) , and the peak frequency between 6Hz and 10Hz (HF) We also calculated a power of LF (L) and a power of HF (H) We found a correlation between the Hoen & Yahr's grade of Parkmsoman and the HF This result suggests that we can use the HF for evaluation of the PD It was also found that PD patients who were able to decrease the ratio of the L and the H (L/H) tended to be able to depress the power of the tremor acceleration This result suggests that tremor control using the L/H as a subject's training target by the biofeedback system may be possible
長岡技術科学大学の論文
2001-11-30