To Compare the Effects of High and Low Frequency Transcutaneous Electrical Nerve Stimulation on Acupuncture Points in Experimental Pain Threshold

This study compared the effects of high and low frequency transcutaneous electrical nerve stimulation on acupuncture points in experimental pain threshold at the wrist. 70 healthy subjects, aged 18-24 years, were distributed into 2 groups: 1) High Frequency TENS, 2) Low Frequency TENS. Pain threshold was measured immediately before and after the treatment. Pain threshold significantly increased in both the groups following treatment, with statistically significant differences in mean pain threshold changes between the two groups also. The results suggest that low frequency TENS is more effective than high frequency TENS for increasing experimental pain threshold.