Table 3.

Repeated measures ANOVA tests with two within factors: ROBOTIC SUPPORT (NoAssistance, Assistance) and PERTURBATION MAGNITUDE (Low, High)

		F	p	df1	df2	F	p	df1	df2
TA${}_R$	PERT. MAGNITUDE	0.662	0.437	1	9	13.844	0.006	1	8
	ROBOTIC SUPPORT	2.159	0.176	1	9	0.653	0.446	1	8
	Interaction effects	2.512	0.147	1	9	10.780	0.011†	1	8
SOL${}_R$	PERT. MAGNITUDE	27.457	< 0.001	1	9	9.923	0.014	1	8
	ROBOTIC SUPPORT	17.336	0.002	1	9	1.355	0.278	1	8
	Interaction effects	3.626	0.089	1	9	4.132	0.077	1	8
GM${}_R$	PERT. MAGNITUDE	30.249	< 0.001	1	9	1.735	0.224	1	8
	ROBOTIC SUPPORT	6.730	0.029	1	9	0.027	0.873	1	8
	Interaction effects	0.175	0.686	1	9	0.685	0.432	1	8
GL${}_R$	PERT. MAGNITUDE	33.856	< 0.001	1	9	17.686	0.003	1	8
	ROBOTIC SUPPORT	1.300	0.284	1	9	4.320	0.071	1	8
	Interaction effects	0.031	0.864	1	9	0.023	0.883	1	8
$x_{\mathit{max}}$	PERT. MAGNITUDE	91.973	< 0.001	1	9	253.158	< 0.001	1	8
	ROBOTIC SUPPORT	5.08e−05	0.994	1	9	2.119	0.184	1	8
	Interaction effects	2.205	0.172	1	9	8.898	0.017‡	1	8
Recov.time	PERT. MAGNITUDE	12.804	0.006	1	9	9.917	0.016	1	8
	ROBOTIC SUPPORT	0.093	0.767	1	9	0.077	0.790	1	8
	Interaction effects	0.021	0.887	1	9	2.79e−04	0.987	1	8
$MO{S}_x$	PERT. MAGNITUDE	15.200	0.004	1	9	0.054	0.822	1	8
	ROBOTIC SUPPORT	1.111	0.319	1	9	2.817	0.132	1	8
	Interaction effects	0.197	0.668	1	9	1.408	0.269	1	8
Step length	PERT. MAGNITUDE	2.020	0.189	1	9	23.653	0.001	1	8
	ROBOTIC SUPPORT	4.210	0.070	1	9	0.045	0.837	1	8
	Interaction effects	6.016	0.037‡	1	9	2.325	0.166	1	8
Swing time	PERT. MAGNITUDE	38.379	< 0.001	1	9	0.300	0.597	1	8
	ROBOTIC SUPPORT	0.679	0.431	1	9	1.744	0.219	1	8
	Interaction effects	3.646	0.089	1	9	2.698	0.135	1	8

F and p values are reported, as well as the degrees of freedom (df). Bold values represent $p<0.05$

When interaction effects were present, Tukey’s significant difference was employed as post-hoc test to compare the robotic support for individual perturbation magnitudes. The symbol ^† expresses no significance for any of the post-hoc tests, while the symbol ^‡ represents a significant interaction for the Low perturbation magnitude