Fig. 7

The postural analysis revealed a pronounced dispersion of sway along the ML axis, resulting in a more substantial expansion of both CoP and CoM in the ML direction compared to the AP axis. (a) CoP planar trajectories for a representative participant across the four experimental conditions: no wobble board, no TMT; no wobble board, TMT; wobble board, no TMT; and wobble board, TMT. (b) CoM planar trajectories for a representative participant across the four experimental conditions. (c) Violin plots showing the distribution of CoP range along the AP and ML axes across the four experimental conditions for all participants. (d) Violin plots illustrating the distribution of CoM range along the AP and ML axes under the four experimental conditions for all participants. Each violin plot’s right and left halves depict the range of CoP and CoM along the ML and AP axes, respectively. Horizontal bars indicate group mean, and white circles indicate group median (N = 96; 48 participants × 2 trials/participant). *p < 0.05; **p < 0.005; ***p < 0.001.