Table 3.
Correlations between functional status of the muscle and symptoms in the OA group.
| Variables | Extension ROM (°) | Flexion ROM (°) | VAS pain (mm) | KL grade |
|---|---|---|---|---|
| Muscle thickness | ||||
| - Rest (mm) | 0.464b | 0.019 | -0.356b | -0.169 |
| - %Muscle-Increase (%) | 0.643b | 0.269 | -0.509b | -0.535b |
| Anteroposterior distance of the bursa | ||||
| - Rest (mm) | -0.520b | -0.391b | 0.236 | 0.325b |
| - %Bursa-Increase (%) | 0.532b | 0.249 | -0.351a | -0.489b |
| Moving distance of the insertion (mm) | 0.838b | 0.458b | -0.557b | -0.592b |
ROM, VAS pain: Pearson correlation coefficient. KL grade: Spearman rank correlation coefficient.
a
p < 0.05,
b
p < 0.01.