Table 2.
COP sway variables under 2 conditions contracting the two groups.
| Group | COP sway area (mm2) | COP sway length (mm) | ||
|---|---|---|---|---|
| EO condition (mean ± SD) | EC condition (mean ± SD) | EO condition (mean ± SD) | EC condition (mean ± SD) | |
| HC (n = 40) | 166.263 ± 8.676 | 242.800 ± 115.863 | 240.213 ± 60.605 | 367.125 ± 86.984 |
| NSCLBP (n = 68) | 191.147 ± 122.964 | 354.485 ± 191.661 | 247.029 ± 92.283 | 397.059 ± 174.873 |
| pvalue | 0.270 | <0.001∗ | 0.726 | 0.374 |
COP: center of pressure, EO: eyes-open, EC: eyes-closed, NSCLBP: nonspecific chronic low back pain, and HC: healthy control. Significant p value is marked with∗.