TABLE 1.
Basic statistical characteristics of the analysed postural stability indices
| Variable [unit of measurement] | (Test + Retest)/2 ± SD | Test ± SD | Retest ± SD |
|---|---|---|---|
| Area [mm2] | 839.48 ± 380.63 | 824.83 ± 394.33 | 854.13 ± 372.81 |
| Convex hull area [mm2] | 581.46 ± 309.36 | 611.92 ± 352.61 | 555.01 ± 262.11 |
| Length (AP) [mm] | 266.34 ± 51.03 | 276.78 ± 49.62 | 255.90 ± 51.12 |
| Length (ML) [mm] | 192.02 ± 42.16 | 196.60 ± 42.51 | 187.44 ± 42.06 |
| Mean distance (AP) [mm] | 9.17 ± 3.67 | 8.83 ± 3.77 | 9.50 ± 3.62 |
| Mean distance (ML) [mm] | 4.45 ± 1.88 | 4.73 ± 2.12 | 4.16 ± 1.60 |
| RMS distance (AP) [mm] | 11.30 ± 4.54 | 10.84 ± 4.85 | 11.76 ± .,25 |
| RMS distance (ML) [mm] | 5.57 ± 2.35 | 5.92 ± 2.67 | 5.21 ± 1.98 |
| Mean velocity (AP) [mm/s] | 8.80 ± 1.69 | 9.14 ± 1.64 | 8.45 ± 1.69 |
| Mean velocity (ML) [mm/s] | 6.34 ± 1.39 | 6.49 ± 1.40 | 6.19 ± 1.39 |