健康受试者经皮电刺激（TES）后脊髓运动神经元功能的兴奋性——F波研究
Excitability of Spinal Motor Neuron Function after the Transcutaneous Electrical Stimulation (TES) in Healthy Subjects -F-wave Study.
作者信息
Hirose Hiroaki, Suzuki Toshiaki, Shimada Tomoaki
机构信息
Department of Physical Therapy, Kansai Vocational College of Medicine, Osaka 558-0011, Japan.
Research Center of Neurological Diseases, Kansai College of Oriental Medicine, Osaka 590-0482, Japan.
出版信息
J Jpn Phys Ther Assoc. 2006;9(1):17-20. doi: 10.1298/jjpta.9.17.
To clarify the excitability of spinal motor neuron function after transcutaneous electrical stimulation (TES), we investigated the F-wave before and after TES. Fourteen healthy volunteers with a mean age of 23.4 years were studied. TES was applied to the flexor hallucis brevis (FHB) for 15 minutes. F-wave and M-wave were recorded from the FHB after tibial nerve stimulation at the ankle before TES, just after TES, 10, 20 and 30 minutes after TES. TES evoked full flexion of the great toe. F-wave was analyzed for the amplitude ratio of F/M, latency and duration. The amplitude ratio of F/ M was 3.1% before TES, 1.4% just after TES, 1.6% 10 minutes after, 1.9% 20 minutes after and 1.7% 30 minutes after TES. Each amplitude ratio of F/M after TES was significantly lower than that before TES (p<0.05). There was no statistically significant difference in the latency and the duration. These results suggest that the excitability of spinal motor neuron function after TES to muscles under this condition was reduced in healthy subjects.
为阐明经皮电刺激（TES）后脊髓运动神经元功能的兴奋性，我们研究了TES前后的F波。对14名平均年龄为23.4岁的健康志愿者进行了研究。将TES施加于拇短屈肌（FHB）15分钟。在TES前、TES刚结束后以及TES后10、20和30分钟，在踝关节处刺激胫神经后记录FHB的F波和M波。TES诱发了拇趾的完全屈曲。分析F波的F/M振幅比、潜伏期和持续时间。TES前F/M振幅比为3.1%，TES刚结束后为1.4%，TES后10分钟为1.6%，20分钟为1.9%，30分钟为1.7%。TES后各F/M振幅比均显著低于TES前（p<0.05）。潜伏期和持续时间无统计学显著差异。这些结果表明，在这种情况下，健康受试者经TES刺激后，脊髓运动神经元对肌肉的功能兴奋性降低。
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