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題名 | 頭皮電針對中風患者脊髓運動神經元興奮度之影響 |
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作者姓名(中文) | 韋翔; 鄧復旦; 黃美涓; | 書刊名 | 復健醫學會雜誌 |
卷期 | 23:1 1995.06[民84.06] |
頁次 | 頁15-20 |
分類號 | 415.922 |
關鍵詞 | 腦中風; 頭皮電針; 運動神經元興奮度; Stroke; Scalp electroacupuncture; Motor neuron excitability; |
語文 | 中文(Chinese) |
中文摘要 | 中風患者因腦中樞神經受損而降低對脊髓運動神經元之抑制作用,常導致脊髓神經元異常興奮現象。其過敏的肌腱反射動作及肌肉強直將不利於復健運動。本研究以頭皮針扎於兩側足運動區及兩側足運感區,加電刺激後,測量與比較治療前後下肢脊髓運動神經元興奮度之變化。研究對象為30位單側痙攣性中風病患,其中女性16人,男性14人,年齡42歲至84歲(60.4±9.6歲)。病患之癱瘓側為實驗組,健側為對照組,以1.5吋頭皮針扎於兩側足運動區與足運感區,且通電25分鐘(疏密波,9.4HZ,7mA-12mA)。以Nicolet Viking II e肌電儀測量H/M比值(H/M ratio)及H恢復時間(H-recovery time),並以paired t-test統計分析結果。結果顯示頭皮電針刺激後,下肢健側與患側之脊髓運動神經興奮度均顯著降低。健側與患側在H/M比值與H恢復時間方面比較均達統計上顯著差異(p<0.05)。H/M比值降低主要原因在於Hmax反射波振幅降低,而Mmax波振幅相對變化不大。 |
英文摘要 | The effect of scalp acupuncture with or without electrical stimulation has been used for years on improving the ambulation of stroke patients. However, the mechanism remains unclear. In this study, the changes in spinal motor neuron excitability of stroke patient were measured before and after scalp electroacupuncture. Thirty subjects with first stroke resulting in spastic hemiparesis or hemiplegia were studied. Two scalp acupuncture regions, the motor area and the motor-sensory area of foot, were inserted with a 1.5 inch scalp needle on both sides respectively. Each subject was stimulated with an electric current, ranged from 7 mA to 12 mA at 9.4HZ, for 25 minutes. Two indices of motor neuron excitability, the H/M ratio and the H-recovery time, were calculated before and after the scalp electroacupuncture. In this study, significant prolonged H-recovery time (P<0.001) and decreased H/M ratio (P<0.001) were noted after scalp electroacupuncture in non-hemiplegic side. The H/M ratio decreased (P<0.05) and H-recovery time prolonged (P<0.001) significantly in the hemiplegic side also noted. The decrement of H/M ratio on both sides was mainly due to the significant decrease in maximum H-reflex amplitude (P<0.05), since maximum M-response amplitude was rather constant. It might be concluded the scalp electroacupuncture had the effect of significant decrease in motoneuron excitability in stroke patients. |
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