tended towards significanceP = 0.056
Moreover, post-hoc analysis revealed that concurrent visual feedback significantly increased SP n (310) compared to both standing with eyes open (SP n = 259: t (17) = 2.41, P < 0.05) and standing with eyes closed (SP n = 243: t (17) = 2.49, P < 0.05). As can be seen in Table 1 , the main effects of group and condition were both significant for sample entropy, while the group by condition interaction tended towards significance ( P = 0.056).