The Assessment of Static Balance in Patients after Total Hip Replacement in the Period of 2-3 Years after Surgery

Table 2

Differences in the stabilometric parameters between the tests with eyes closed and eyes opened: control and study group.

Stabilometric parameters (EC versus EO)	Control group						Study group
	M	Me	SD	Min	Max		M	Me	SD	Min	Max
COP deviation mean velocity (AP) (cm/s)	0,32	0,31	0,25	−0,17	1,31	≤0,001	0,39	0,36	0,23	−0,16	1,10	≤0,001
COP deviation mean velocity (ML) (cm/s)	0,51	0,41	0,54	−0,07	3,45	≤0,001	0,75	0,61	0,51	−0,20	2,12	≤0,001
COP path length (cm)	19,56	17,24	18,7	−6,82	115,58	≤0,001	27,72	24,36	18,0	−9,56	76,49	≤0,001
COP path area (cm^2)	2,22	1,47	4,17	−2,46	27,32	≤0,001	2,29	1,48	3,27	−7,29	12,91	≤0,001

AP: anterior-posterior; COP: center of pressure; EC: eyes closed; EO: eyes opened; M: mean; max: maximum value; Me: median; min: minimum value; ML: medial-lateral; : Wilcoxon test probability value; SD: standard deviation.