不同刺激频率与时间经穴经皮神经电刺激对电流感觉阈值的影响

目的 分析不同频率与时间的经穴经皮神经电刺激对电流感觉阈值(CPT)的影响。 方法 通过测量颏孔区和手臂区的电流感觉阈值评价经穴经皮神经电刺激的效用。对30名健康受试者的合谷穴分次给予不同刺激时间和刺激频率的经皮神经电刺激，并测量同侧颏孔区和手臂区的电流感觉阈值。结果 颏孔区电流感觉阈值升高。低频电刺激对慢痛有明显抑制作用，高频电刺激对快痛和慢痛均有抑制作用。经皮神经电刺激的刺激频率比刺激时间对疼痛的抑制作用的影响更明显。结论 经穴经皮神经电刺激确实可以影响特定反应区的感觉阈值，且治疗频率的选择比单纯延长治疗时间更为重要。

The influence of current perception threshold(CPT) by different frequency and time of transcutaneous electrical nerve stimulation (TENS)

Objective Analysis the influence of current perception threshold(CPT) by different frequency and time of transcutaneous electrical nerve stimulation (TENS).It measured the CPT of the foramen area and the arm area to evaluate the effect of TENS. It gave different frequency and time of TENS to 30 Healthy volunteers Hegu and measured the CPT of the foramen area and the arm area on the same side. Results The CPT of the foramen area increased. The low frequency of TENS inhibited the slow pain significantly, the high frequency of TENS inhibited both of the slow pain and the fast pain. The inhibition to the pain is more obviously influenced by the frequency of TENS than the time of TENS. Conclusion It is confirmed the channel and point TENS can influence the CPT of the specific reaction area,the choice of the appropriate frequency of the treatment is more important than extending the treatment time alone.