The Assessment of Static Balance in Patients after Total Hip Replacement in the Period of 2-3 Years after Surgery
Table 5
Differences in the stabilometric parameters in male subjects (study group versus control group) and female subjects (study group versus control group).
Stabilometric parameters
Men (control group)
Men (study group)
M
Me
SD
M
Me
SD
EC/EO ratio
COP path length (cm)
1,89
1,88
0,58
2,03
1,96
0,70
0,743
COP path area (cm2)
2,65
1,99
1,66
2,61
2,29
1,88
0,947
Eyes opened (EO)
COP deviation mean velocity (AP) (cm/s)
0,46
0,39
0,20
0,62
0,57
0,33
0,019
COP deviation mean velocity (ML) (cm/s)
0,51
0,42
0,27
0,73
0,65
0,33
0,004
COP path length (cm)
21,91
17,92
10,81
30,43
26,83
14,90
0,015
COP path area (cm2)
2,34
0,92
4,02
2,38
1,92
1,66
0,058
Eyes closed (EC)
COP deviation mean velocity (AP) (cm/s)
0,76
0,64
0,31
0,98
0,97
0,39
0,021
COP deviation mean velocity (ML) (cm/s)
0,98
0,79
0,45
1,44
1,38
0,59
0,004
COP path length (cm)
39,40
33,61
17,41
57,40
56,29
23,60
0,006
COP path area (cm2)
4,16
3,26
5,25
4,95
3,49
3,19
0,143
Stabilometric parameters
Women (control group)
Women (study group)
M
Me
SD
M
Me
SD
EC/EO ratio
COP path length (cm)
2,04
1,96
0,81
2,43
2,26
0,91
0,088
COP path area (cm2)
2,67
2,32
2,22
3,09
1,97
3,09
0,823
Eyes opened (EO)
COP deviation mean velocity (AP) (cm/s)
0,43
0,41
0,18
0,42
0,40
0,16
0,769
COP deviation mean velocity (ML) (cm/s)
0,47
0,44
0,20
0,48
0,46
0,21
0,877
COP path length (cm)
20,13
18,89
8,88
20,16
19,03
8,50
0,988
COP path area (cm2)
1,45
1,22
0,83
1,75
1,11
2,01
0,674
Eyes closed (EC)
COP deviation mean velocity (AP) (cm/s)
0,77
0,69
0,37
0,84
0,77
0,35
0,306
COP deviation mean velocity (ML) (cm/s)
1,01
0,80
0,73
1,26
1,05
0,71
0,076
COP path length (cm)
40,83
33,81
26,40
48,45
38,80
25,41
0,168
COP path area (cm2)
3,89
2,55
5,24
3,81
2,36
3,80
0,790
AP: anterior-posterior; COP: center of pressure; EC: eyes closed; EO: eyes opened; EC/EO ratio: eyes closed/eyes opened ratio; M: mean; Me: median; ML: medial-lateral; : Mann–Whitney test probability value; SD: standard deviation.
