腓骨頭部加速度波形を用いた片麻痺患者の歩行評価の定量化に関する検討

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  • Quantitative assessment of Gait paramenter in patients with hemiplegia by accelerometory
  • ヒコツ トウブ カソクド ハケイ オ モチイタ カタ マヒ カンジャ ノ ホコウ ヒョウカ ノ テイリョウカ ニ カンスル ケントウ

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Quantitative assessment of impairment in hemiplegic patients was attempted by accelerometry in the head of fibula. A portable microprocessor-based data acquisition system was used to measure the acceleration at the head of fibula during gait in ambulatory subjects and to evaluate temporal and spatial parameters of the gait. After examination, the recorded data are downloaded to a personal computer to analyze the gait cycle, power spectrum and phase-plane locus of two directions. Experiments were performed on 30 hemiplegic patients of different Brunnstrom stage (Br. stage) grading. The orthogonal accelerations at the head of fibula were measured when walking at a normal speed. The gait cycle for a subject of a low Br. stage was significantly larger than that for a high Br. stage. The power amplitude in frequency distribution for a low Br. stage subject was significantly smaller than that for a high Br. stage. The area of phase-plane locus is larger in higher Br stage. This monitor may permit a quantitative assessment of the recovery of hemiplegic patients, both in a hospital environment and later in their homes.

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