Differences in the mean position of COP before and after vibration (n = 24).
POSITIVE
Error bars indicate the standard error. A. The results of Dunnett’s test on the mean position of ML-COP with closed eyes. Positive values indicate a rightward deviation, whereas negative values indicate a leftward deviation on the mediolateral plane. B. The results of Dunnett’s test on the mean position of AP-COP with closed eyes. Positive values indicate an anterior deviation, whereas negative values indicate a posterior deviation on the anteroposterior plane. Asterisks indicate significant differences compared with the control condition, Dunnett’s test: p < 0.05. ML-COP, mediolateral-center of pressure; AP-COP, anteroposterior-center of pressure.