Table 1. Summary statistics, main effects, and Bonferroni-corrected pairwise comparisons for the gait parameters averaged across left and right turns.

		Unconstrained		Constrained		Perturbed		Main Effect		Comparisons
		M	(SD)	M	(SD)	M	(SD)	F(2, 12)	p	U:C	U:P	C:P
IN	α	0.85	(0.150)	0.71	(0.135)	0.59	(0.117)	13.32	<0.001	<0.05	<0.001	<0.01
	ISI (s)	1.08	(0.042)	1.14	(0.057)	1.17	(0.052)	52.38	<0.001	<0.001	<0.001	<0.001
	CV (%)	1.55	(0.255)	1.80	(0.441)	2.66	(0.647)	31.89	<0.001	=0.07	<0.001	<0.001
	v (m/s)	1.46	(0.064)	1.35	(0.090)	1.28	(0.081)	126.40	<0.001	<0.001	<0.001	<0.001
	SL (m)	1.58	(0.086)	1.54	(0.086)	1.50	(0.088)	37.19	<0.001	<0.001	<0.001	<0.001
OUT	α	0.86	(0.126)	0.68	(0.124)	0.53	(0.105)	21.39	<0.001	<0.05	<0.001	<0.01
	ISI (s)	1.08	(0.042)	1.14	(0.057)	1.17	(0.052)	52.25	<0.001	<0.001	<0.001	<0.001
	CV (%)	1.53	(0.221)	1.84	(0.444)	2.90	(0.619)	38.21	<0.001	<0.05	<0.001	<0.001
	v (m/s)	1.46	(0.064)	1.35	(0.091)	1.29	(0.081)	126.38	<0.001	<0.001	<0.001	<0.001
	SL (m)	1.58	(0.086)	1.54	(0.087)	1.50	(0.089)	37.15	<0.001	<0.001	<0.001	<0.001

All gait parameters were estimated separately on the inner- (IN) and outer-side (OUT) of the walker with respect to the direction of the turn.