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

Table 1

Stabilometric parameters (eyes opened (EO) and eyes closed (EC)): study group versus control group.

	Eyes opened (EO)
	Control group					Study group
	M	Me	SD	Min	Max	M	Me	SD	Min	Max
COP deviation mean velocity (AP) (cm/s)	0,44	0,41	0,19	0,18	1,06	0,51	0,45	0,27	0,15	1,87	0,147
COP deviation mean velocity (ML) (cm/s)	0,49	0,43	0,23	0,18	1,42	0,59	0,53	0,29	0,17	1,64	0,037
COP path length (cm)	20,76	18,46	9,53	7,76	55,82	24,64	22,09	12,69	7,44	79,69	0,071
COP path area (cm^2)	1,77	1,09	2,48	0,36	16,94	2,02	1,23	1,88	0,27	9,58	0,264
	Eyes closed (EC)
	Control group					Study group
	M	Me	SD	Min	Max	M	Me	SD	Min	Max
COP deviation mean velocity (AP) (cm/s)	0,76	0,68	0,35	0,31	1,95	0,90	0,88	0,37	0,31	2,50	0,026
COP deviation mean velocity (ML) (cm/s)	1,00	0,80	0,64	0,33	4,15	1,34	1,29	0,66	0,35	3,05	0,001
COP path length (cm)	40,32	33,71	23,42	14,57	145,2	52,36	51,28	24,82	14,44	122,7	0,005
COP path area (cm^2)	3,99	2,86	5,19	0,50	29,66	4,31	3,36	3,56	0,39	18,19	0,190

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; p: Mann–Whitney test probability value; SD: standard deviation.