Fig. 3

Pressure and Heat Pain Threshold changes from baseline. Legend. A: (Left): Intergroup comparison of changes with respect to baseline in pressure pain threshold, expressed as mean and 95% confidence interval. Differences between sham and active groups are indicated with (*) p < 0.05 and (**) p < 0.01. Differences between active groups are indicated with (#) p < 0.05 and (# #) p < 0.01. B (Right): Intergroup comparison of changes with respect to baseline in heat pain threshold, expressed as mean and 95% confidence interval. Differences between sham and active groups are indicated with (*) p < 0.05 and (**) p < 0.01. PPT pressure pain threshold, HPT heat pain threshold