Table 1. Changes of the COD_D, COP_V and ankle, knee and hip joint deflections with respect to the different permutations of perturbation direction, velocity and displacement are illustrated.

direction	anterior				posterior				medial				lateral
velocity	0.11m/s		0.18m/s		0.11m/s		0.18m/s		0.11m/s		0.18m/s		0.11m/s		0.18m/s
displacement	2cm	3cm	2cm	3cm	2cm	3cm	2cm	3cm	2cm	3cm	2cm	3cm	2cm	3cm	2cm	3cm
COPd [mm]	16.6±3.7#	23.5±5.1*#	13.2±3.5†#	22.1±5.6†*#	16.6±3.2#	24.7±4.9*#	14.5±2.8†#	25.6±4.0†*#	13.0±2.9#	15.8±3.0*#	11.3±2.0†#	15.9±2.8†*#	13.4±2.5#	16.3±2.9*#	11.6±1.8†*#	15.5±2.7 †*#
COPv[mm/s]	0.8±0.2 #	1.2±0.2 *#	0.9±0.3 †#	1.4±0.3 †*#	0.7±0.1 #	1.0±0.2 *#	1.0±0.2 †#	1.4±0.3 †*#	0.4±0.1 #	0.6±0.1 *#	0.5±0.1 †#	0.7±0.1 †*#	0.5±0.1 #	0.6±0.1 *#	0.5±0.1 †*#	0.7±0.1 †*#
Joint exc. [°]	sagittal								frontal
ankle	0.8±0.7	1.2±1.1 *	0.7±0.6 †	1.1±1.0 †*	0.9±0.8	1.2±1.2 *	0.6±0.5 †	0.8±0.8 †*	2.6±1.6 #	3.5±2.0 *#	2.0±1.4 †#	3.7±2.1 †*#	1.7±1.2 #	2.1±1.5 *#	1.2±0.7 †*#	1.7±1.0 †*#
knee	1.3±0.4	2.1±0.5 *	0.9±0.4 †	2.0±0.6 †*	1.0±0.5 #	1.6±0.6 *#	0.6±0.3 †#	1.3±0.5 †*#
hip	0.5±0.2	0.8±0.3 *	0.4±0.2 †	0.7±0.3 †*	0.4±0.2	0.8±0.3 *	0.3±0.1 †	0.6±0.2 †*	0.7±0.5	1.1±0.7 *	0.6±.05 †	1.3±0.9 †*	0.8±0.4	1.3±0.6 *	0.5±0.3 †*	0.9±0.4 †*

Values represent mean values ± standard deviations (M±SD). For significant main effects of the ANOVA, a * symbol marks a significant effect of the displacement on the respective parameters measured, a † symbol marks a significant effect of the velocity and a # symbol marks a significant effect of the perturbation direction (P<0.05).