Table 3.
The Angle Class and CoP displacement relative to the centre of the support polygon.
| Parameters | Angle Class | p | |||
|---|---|---|---|---|---|
| I Class | II Class | III Class | |||
| CoP displacement in sagittal plane | Forward | 11 (36.67%) | 20 (66.67%) | 5 (16.67%) | p < 0.001 * |
| Backward | 19 (63.33%) | 10 (33.33%) | 25 (83.33%) | ||
| CoP displacement in frontal plane | Non | 6 (20.00%) | 9 (30.00%) | 4 (13.33%) | p = 0.419 |
| Left | 19 (63.33%) | 14 (46.67%) | 17 (56.67%) | ||
| Right | 5 (16.67%) | 7 (23.33%) | 9 (30.00%) | ||
| Lateral CoP displacement [cm] | Av ± SD | 1.46 ± 0.89 | 1.95 ± 1.03 | 2.38 ± 1.21 | p = 0.009 * |
| Median | 1.12 | 2.01 | 1.97 | ||
| Quartiles | 0.8–2.21 | 1.16–2.22 | 1.41–3.4 | Cl.III > Cl.I | |
p—for quantitative variables Kruskal–Wallis test + post hoc analysis (Dunn’s test), for qualitative variables chi-square test or Fisher’s exact test. * Statistically significant difference.