穴位经皮神经电刺激（HANS）治疗脊髓损伤引起的痉挛

本研究通过穴位表面进行电刺激（TENS）观察其改善脊髓损伤性肌痉挛的即刻和长期治疗效果，并对其机理进行了初步分析。观察结果如下：（1）高频（100Hz）刺激30分钟具有明显的即时解痉效果，而低频（2Hz）刺激解痉疗效不佳；（2）高频TENS的解痉效应可为阿片受体拮抗剂纳洛酮部分阻断；（3）高频TENS具有持久的解痉效果；（4）与腰部和骶部刺激相比，穴位刺激的疗效持续时间最为持久。我们推测，穴位高频电刺激加强了脊髓中强啡肽的释放，通过k型阿片受体降低了前角运动神经元的兴奋性，从而对脊髓损伤性肌痉挛产生明显的改善作用。

HANS in treating spasiticity resulting from spinal cord injury

Surface transcutaneous electric nerve stimulation(TENS) was applied to treat the spasiticity resulting from spinal cord injury(SCI) in the acupoints of the subjects with SCI in order to oberve thetranscient and long-term effect of the treatment Fand its mechanism will be discussed in this paper. The results show that: 1 )more significant effect in relieving the spasiticiy was got by stimulating in high frequencyfor 30minutes,while less effect in low frequency(2Hz) ; 2)the effect in high frequency was partially ostracized by naloxone; 3)the effect in high frequency lasted for a long time i 4)compared with lumbar and sacralstimulation,the acupoint stimulation lasted for the longest time. This study also gets a hypothesis that highfrequency TENS in acupoints improves dynorphin in CSF to release and significantly relieve the spasiticityby kappa opioid receptor which decreases the excitment of anterior motor neuron.