TABLE 2.

Follow-up analysis for main effect of condition and the interaction of condition and age group.

	Paired t-tests for the main effect condition		Paired t-tests for the interaction of condition × age group
Pairs	Overall	Children	Young adults	Older adults
Walk-walk vs. Walk-stand	t(63) = 0.16, p = 0.873, dz = 0.02	t(15) = 1.49, p = 0.158, dz = 0.37	t(27) = 1.61, p = 0.11, dz = 0.30	t(19) = 2.39, p = 0.027, dz = 0.53
Walk-walk vs. Stand-walk	t(63) = 9.03, p < 0.001, dz = 1.13	t(15) = 6.57, p < 0.001, dz = 1.64	t(27) = 5.66, p < 0.001, dz = 1.07	t(19) = 6.40, p < 0.001, dz = 1.43
Walk-walk vs. Stand-stand	t(63) = 15.07, p < 0.001, dz = 1.88	t(15) = 8.84, p < 0.001, dz = 2.21	t(27) = 8.42, p < 0.001, dz = 1.60	t(19) = 14.23, p < 0.001, dz = 3.18
Walk-stand vs. Stand-walk	t(63) = 8.74, p < 0.001, dz = 1.09	t(15) = 4.32, p < 0.008, dz = 1.08	t(27) = 8.60, p < 0.001, dz = 1.63	t(19) = 3.96, p < 0.008, dz = 0.89
Walk-stand vs. Stand-stand	t(63) = 13.88, p < 0.001, dz = 1.74	t(15) = 7.24, p < 0.001, dz = 1.81	t(27) = 9.48, p < 0.001, dz = 1.79	t(19) = 14.03, p < 0.001, dz = 3.14
Stand-walk vs. Stand-stand	t(63) = 8.78, p < 0.001, dz = 1.10	t(15) = 3.18, p < 0.008, dz = 0.80	t(27) = 4.24, p < 0.001, dz = 0.80	t(19) = 15.46, p < 0.001, dz = 3.46

¹An alternative analysis of the results using memory span as the dependent variable for memory performance can be found in Supplementary Material 2.