Table 3 –

Statistical results for differences between Age groups (YH vs. OH) and Conditions (NOP, VIS and PLAT) for the data shown in Fig. 3, including: means, variability (σ), and DFA exponents (α) 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. 3A	Mean (w)	F(1,32) = 0.52 p=0.478	F(2,166) = 39.60 p < 0.001	F(2,166) = 1.47 p = 0.233	N/A	VIS-NOP: p < 0.001
						PLAT-NOP: p < 0.001
	Mean (zB)	F(1,32) = 2.91 p = 0.098	F(2,166) = 0.72 p = 0.488	F(2,166) = 0.70 p = 0.496	N/A	N/A
Fig. 3B	ln [σ (w)]	F(1,32) = 4.55 p* = 0.041	F(2,166) = 701.21 p* < 0.001	F(2,166) = 5.64 p = 0.004		YH:
						VIS-NOP: p < 0.001
					NOP: p = 0.259	PLAT-NOP: p < 0.001
					VIS: p = 0.049
					PLAT: p = 0.917	OH:
						VIS-NOP: p < 0.001
						PLAT-NOP: p < 0.001
	ln [σ (zB)]	F(1,32) = 3.42 p* = 0.074	F(2,166) = 266.35 p* < 0.001	F(2,166) = 4.24 p = 0.016		YH:
						VIS-NOP: p < 0.001
					NOP: p = 0.129	PLAT-NOP: p < 0.001
					VIS: p = 0.319
					PLAT: p = 0.997	OH:
						VIS-NOP: p < 0.001
						PLAT-NOP: p < 0.001
Fig. 3C	α (w)	F(1,32) = 0.060 p = 0.801	F(2,166) = 104.50 p < 0.001	F(2,166) = 1.63 p = 0.199	N/A	VIS-NOP: p < 0.001
						PLAT-NOP: p < 0.001
	α (zB)	F(1,32) = l.07 p = 0.309	F(2,166) = 75.10 p < 0.001	F(2,166) = 0.96 p = 0.386	N/A	VIS-NOP: p < 0.001
						PLAT-NOP: p < 0.001

^*In cases where Age×Condition interactions are significant, the main effects results should be considered unreliable and misleading. Tukey’s pairwise comparisons results should be used to draw conclusions about age group differences for each condition, as these account for the effects of the interaction.