Fig. 3.

Changes in the pain threshold and blood pressure by RCS in the long-term follow-up study. The pain threshold (solid circles) and blood pressure (open circles) were measured from 7 days before to 18 days after the start of the RCS, 2 or 3 days a week (n = 4). Obvious decreases in the pain threshold and blood pressure were induced by RCS. The recovery rate of the pain threshold was slower than that of blood pressure. *p < 0.05, **p < 0.01, ***p < 0.001 vs. pre-RCS (day 0) by one-way repeated measures ANOVA followed by Bonferroni’s multiple comparison test