- 期刊
頭皮電針對中風患者脊髓運動神經元興奮度之影響
The Effect of Scalp Electroacupuncture on Motor Neuron Excitability of Stroke Patients
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, 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 HIM 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＜0.001l) significantly in the hemiplegic side also noted. The decrement of HIM 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.
並列摘要
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, 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 HIM 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＜0.001l) significantly in the hemiplegic side also noted. The decrement of HIM 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.
延伸閱讀
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