Relationship between clinical and instrumental balance assessments in chronic post-stroke hemiparesis subjects

Table 3 Centre of pressure (CoP) parameters: Romberg test in eyes closed (EC) condition

CoP Parameters	Stroke subjects	Control subjects	P-values
Ellipse (mm ² )	425.5 ± 180.5	309.3 ± 169.2	0.195
Sway Area (mm ² /s)	38.3 ± 31.6	17.9 ± 8.4	0.067
Path (mm)	610.8 ± 192.2	412.7 ± 122.6	0.020*
Path ML (mm)	275.5 ± 86.1	215.80 ± 76.4	0.153
Path AP (mm)	494.4 ± 170.4	305.1 ± 85.5	0.008*
CoPv (mm/s)	18.2 ± 10.0	10.3 ± 3.1	0.033*
CoPv ML (mm/s)	8.4 ± 5.2	5.4 ± 1.9	0.117
CoPv AP (mm/s)	14.6 ± 7.6	7.6 ± 2.1	0.015*

Parameters computed from the CoP trajectory acquired during the Romberg Test in the EC condition for post-stroke (SS, second column) and control subjects (CS, third column). CoP path and velocity (CoPv), and the component in the antero-posterior direction were significantly different between SS and CS, as indicated by the p-values on the right-hand side column (the asterisks mark the values exceeding the threshold for significance, p < 0.05). Values are reported as mean ± standard deviation.

ISSN: 1743-0003