Table 2.
Right and left knee kinematics of healthy subjects
| Knee kinematics (degree) |
Right knee | Left knee | P-value | ||
|---|---|---|---|---|---|
| Mean | SD | Mean | SD | ||
| Varus-valgus | |||||
| Heel strike | 0.69 | 2.98 | 0.44 | 3.27 | 0.635 |
| Mid-stance | 0.84 | 3.16 | 0.33 | 3.13 | 0.047* |
| Terminal stance | -0.24 | 3.17 | -0.41 | 3.09 | 0.659 |
| Mid-swing | 4.98 | 5.98 | 3.35 | 5.63 | < 0.001* |
| Flexion-extension | |||||
| Heel strike | 10.49 | 4.27 | 10.16 | 4.49 | 0.346 |
| Mid-stance | 16.33 | 5.09 | 15.34 | 5.18 | 0.017* |
| Terminal stance | 14.85 | 4.09 | 14.28 | 3.99 | 0.071 |
| Mid-swing | 63.58 | 4.29 | 63.78 | 4.62 | 0.577 |
| Internal-external rotation | |||||
| Heel strike | -28.72 | 10.59 | -25.53 | 9.87 | 0.002* |
| Mid-stance | -22.95 | 10.28 | -19.29 | 9.61 | < 0.001* |
| Terminal stance | -19.49 | 9.89 | -15.97 | 9.26 | < 0.001* |
| Mid-swing | -31.78 | 10.71 | -30.61 | 9.37 | 0.195 |
+ = knee varus, flexion, and internal rotation; - = knee valgus, extension, and external rotation; *significant (P < 0.05), SD = standard deviation