Table 3.

Mean and SD values for the postural indices in healthy subjects HC and patients with MS in eyes open (EO) and eyes closed (EC) conditions during Not-perturbed Test (NPT) and Perturbed Test (PT); * represents significant differences between Healthy Control (HC) and subjects with Multiple Sclerosis (MS)

		NPT			PT
		HC	MS	p	HC	MS	p
EO	CEA [mm2]	85 ± 34	133 ± 159	0.30	656 ± 419	1633 ± 1428	0.02*
	SP [mm]	487 ± 165	459 ± 111	0.58	801 ± 237	1058 ± 378	0.04*
	Dap [mm]	3 ± 1	4 ± 2	0.32	6 ± 2	8 ± 3	0.04*
	Dml [mm]	44 ± 27	31 ± 18	0.13	24 ± 16	25 ± 13	0.79
EC	CEA [mm2]	235 ± 309	108 ± 50	0.15	3553 ± 1770	7506 ± 5418	0.02*
	SP [mm]	514 ± 173	589 ± 231	0.33	1816 ± 586	2362 ± 1142	0.13
	Dap [mm]	4 ± 2	6 ± 3	0.07	14 ± 4	18 ± 5	0.02*
	Dml [mm]	43 ± 28	32 ± 18	0.20	30 ± 17	29 ± 10	0.83

CEA confidence ellipse area, SP sway path, D _ap root mean square of CoP displacement in the anteroposterior direction, D _ml root mean square of CoP displacement in the mediolateral direction