Efficacy of 100 Hz, 2 Hz, or sham TEAS.

A. Wrist MAS score was significantly reduced by 100 Hz TEAS compared with 2 Hz or sham TEAS. Data were analyzed by repeated-measures ANOVA. The * represents significant difference between 100 Hz and sham, P < 0.05; ^# represents significant difference between 100 Hz and 2 Hz, P < 0.05; ^& represents significant difference between 2 Hz and sham. B. Wrist MAS score in patients treated with 100 Hz TEAS was significantly decreased from baseline during treatment and at follow-up visits. Comparison with baseline values was analyzed by repeated-measures ANOVA. The wrist MAS scores were used for the statistical analysis. Data were presented as mean ± standard error. The * represents significant differences between post-treatment and the baseline value, P < 0.05. C. Thumb MAS score was not affected by treatments. D. The MAS score of the other 4 fingers was not affected by treatments. Results are from the analysis on ITT data set. ANOVA = analysis of variance. MAS = Modified Ashworth Scale. TEAS = transcutaneous electrical acupoint stimulation.