Table 4 –

Statistical results for differences between Age groups (YH vs. OH) and Conditions (NOP, VIS and PLAT) for the data shown in Fig. 4, including: control slopes, and correlation (R²) for step width (w) and lateral position (z_B). ANOVA results (F-statistics and p-values) are provided for main effects of Age, Condition, and Age×Condition interaction effects, along with the relevant Tukey’s post-hoc comparisons. Significant differences are indicated in bold.

Data In	Variable	Age	Condition	Age×Condition	Tukey’s (Age Effects)	Tukey’s (Condition Effects)
Fig. 4B	slope (w)	F_(1,32) = 0.01 p = 0.915	F_(2,166) = 88.42 p < 0.001	F_(2,166) = 2.48 p = 0.087	N/A	VIS-NOP: p < 0.001
Fig. 4B	slope (w)	F_(1,32) = 0.01 p = 0.915	F_(2,166) = 88.42 p < 0.001	F_(2,166) = 2.48 p = 0.087	N/A	PLAT-NOP: p = 0.587
	slope (z_B)	F_(1,32) = 0.00 p = 0.976	F_(2,166) = 140.92 p < 0.001	F_(2,166) = 0.31 p = 0.735	N/A	VIS-NOP: p < 0.001
	slope (z_B)	F_(1,32) = 0.00 p = 0.976	F_(2,166) = 140.92 p < 0.001	F_(2,166) = 0.31 p = 0.735	N/A	PLAT-NOP: p < 0.001

Fig. 4C	R² (w)	F_(1,32) = 0.01 p = 0.923	F_(2,166) = 88.50 p < 0.001	F_(2,166) = 2.40 p = 0.094	N/A	VIS-NOP: p < 0.001
Fig. 4C	R² (w)	F_(1,32) = 0.01 p = 0.923	F_(2,166) = 88.50 p < 0.001	F_(2,166) = 2.40 p = 0.094	N/A	PLAT-NOP: p = 0.611
	R² (z_B)	F_(1,32) = 0.00 p = 0.970	F_(2,166) = 134.58 p < 0.001	F_(2,166) = 0.34 p = 0.714	N/A	VIS-NOP: p < 0.001
	R² (z_B)	F_(1,32) = 0.00 p = 0.970	F_(2,166) = 134.58 p < 0.001	F_(2,166) = 0.34 p = 0.714	N/A	PLAT-NOP: p < 0.001