Table 2.
Mean and standard deviation of the mean of the sway characteristics of 151 patients with type 2 diabetes mellitus during upright stance on hard/soft surface, with the eyes open/closed.
| Variables |
BMI < 30 (n = 92) |
BMI 30 to < 35 (n = 42) |
BMI ≥ 35 (n = 17) |
|||
|---|---|---|---|---|---|---|
| Eyes open | Eyes closed | Eyes open | Eyes closed | Eyes open | Eyes closed | |
| Mean ± S.D. | Mean ± S.D. | Mean ± S.D. | Mean ± S.D. | Mean ± S.D. | Mean ± S.D. | |
| Hard surface | ||||||
| Length (mm) | 330 ± 104 | 448 ± 219 | 347 ± 126 | 481 ± 292 | 332 ± 99 | 522 ± 243 |
| Area (mm2) | 105 ± 99 | 215 ± 671 | 108 ± 82 | 198 ± 295 | 139 ± 112 | 280 ± 267 |
| X a position (mm) | 4.5 ± 36.8 | 0.75 ± 6.3 | 0.09 ± 6.2 | 0.69 ± 6.2 | 0.32 ± 4.8 | 0.67 ± 4.7 |
| Y b position (mm) | −29.6 ± 19.1 | −28.2 ± 15.5 | −34.6 ± 19.5 | −32.4 ± 18.5 | −36.8 ± 14.2 | −33.1 ± 12.1 |
| Soft surface | ||||||
| Length (mm) | 447 ± 189 | 686 ± 308 | 452 ± 197 | 724 ± 385 | 368 ± 91 | 652 ± 252 |
| Area (mm2) | 204 ± 283 | 413 ± 505 | 216 ± 210 | 505 ± 521 | 234 ± 229 | 420 ± 361 |
| X a position (mm) | −0.01 ± 7.2 | −0.68 ± 7.6 | 2.12 ± 6.4 | 1.06 ± 6.4 | −1.59 ± 4.3 | −1.82 ± 5.7 |
| Y b position (mm) | −26.6 ± 17.5 | −25.3 ± 15.9 | −33.2 ± 20.9 | −29.5 ± 24.5 | −32.9 ± 14 | −31.2 ± 13.9 |
a X: lateral-lateral position of the centre of pressure.
b Y: anterior-posterior position of the centre of pressure.