Table 3.
Means (standard deviations) of the sagittal inclination angles (IA) and the rate of change of IA (RCIA) at heel-strike (HS), contralateral toe-off (CTO), contralateral heel-strike (CHS) and toe-off (TO), as well as average values and ranges of IAs during single-limb support (SLS), swing (SW), initial double-limb support (DLSi) and terminal double-limb support (DLSt).
| Sagittal IA (deg) | Sagittal RCIA (deg/s) | |||||
|---|---|---|---|---|---|---|
| OA | Control | p value | OA | Control | p value | |
| HS | 6.6 (0.9) | 7.4 (1.2) | 0.028* | − 41.1 (41.4) | − 133.0 (65.6) | 0.000* |
| CTO | − 8.3 (1.1) | − 8.0 (1.0) | 0.464 | − 1.9 (14.3) | − 38.9 (46.7) | 0.010* |
| CHS | 6.9 (0.8) | 7.7 (1.3) | 0.040* | − 60.8 (38.4) | − 119.1 (53.7) | 0.002* |
| TO | − 8.2 (0.8) | − 7.7 (0.8) | 0.100 | 1.2 (13.6) | − 40.5 (29.0) | 0.000* |
| Range | ||||||
| DLSi | 15.4 (1.6) | 15.6 (1.7) | 0.739 | 246.0 (76.5) | 266.5 (62.8) | 0.429 |
| DLSt | 15.2 (1.2) | 15.4 (1.3) | 0.691 | 251.3 (66.1) | 243.9 (39.5) | 0.713 |
| SLS | 15.5 (1.4) | 16.4 (1.1) | 0.070 | 126.4 (35.7) | 169.6 (51.3) | 0.000* |
| SW | 17.1 (1.7) | 18.0 (1.5) | 0.116 | 48.4 (17.5) | 101.2 (31.2) | 0.000* |
P-values for comparisons between knee OA and Control using independent t test are also shown. All significance levels were set at α = 0.05.
*OA significantly different from Control.