Fig. 2
From: 20-kHz alternating current stimulation: effects on motor and somatosensory thresholds
HFAC stimulation effect on maximal handgrip strength. Sham stimulation (grey) and 20 kHz (black). Data are represented as mean and standard error values. * Indicates value significantly different compared to sham stimulation (***p < 0.001; * p < 0.05). # Indicates significant difference from baseline and 30 min (### p < 0.001)