Table 3. Means and standard deviations of the coefficient of multiple correlation (CMC) for the joint angle motion of the subjects.
| Intra-subject |
Test-retest* |
|||||
|---|---|---|---|---|---|---|
| Joint angle motion | Left | Right | L-R Average | Left | Right | L-R Average |
| Sagittal plane | ||||||
| Pelvic tilt | 0.536 ± 0.124 | 0.514 ± 0.064 | 0.525 ± 0.095 | 0.401 ± 0.134 | 0.352 ± 0.152 | 0.376 ± 0.142 |
| Hip flexion/extension | 0.996 ± 0.001 | 0.997 ± 0.001 | 0.997 ± 0.001 | 0.992 ± 0.006 | 0.994 ± 0.004 | 0.993 ± 0.005 |
| Knee flexion/extension | 0.994 ± 0.002 | 0.995 ± 0.001 | 0.994 ± 0.002 | 0.992 ± 0.002 | 0.992 ± 0.003 | 0.992 ± 0.003 |
| Ankle dorsiflexion/plantar | 0.981 ± 0.004 | 0.981 ± 0.005 | 0.981 ± 0.005 | 0.974 ± 0.011 | 0.975 ± 0.010 | 0.975 ± 0.010 |
| Frontal plane | ||||||
| Pelvic obliquity | 0.986 ± 0.004 | 0.982 ± 0.009 | 0.984 ± 0.007 | 0.977 ± 0.010 | 0.973 ± 0.014 | 0.975 ± 0.012 |
| Hip abduction/adduction | 0.982 ± 0.005 | 0.979 ± 0.007 | 0.980 ± 0.006 | 0.971 ± 0.016 | 0.961 ± 0.022 | 0.966 ± 0.019 |
| Knee varus/valgus | 0.925 ± 0.023 | 0.926 ± 0.015 | 0.925 ± 0.019 | 0.827 ± 0.102 | 0.759 ± 0.206 | 0.793 ± 0.163 |
| Transverse plane | ||||||
| Pelvic rotation | 0.926 ± 0.079 | 0.914 ± 0.101 | 0.920 ± 0.087 | 0.899 ± 0.113 | 0.884 ± 0.138 | 0.892 ± 0.123 |
| Hip rotation | 0.938 ± 0.027 | 0.917 ± 0.032 | 0.927 ± 0.030 | 0.879 ± 0.056 | 0.772 ± 0.144 | 0.826 ± 0.120 |
| Knee rotation | 0.804 ± 0.106 | 0.910 ± 0.059 | 0.857 ± 0.099 | 0.747 ± 0.132 | 0.877 ± 0.065 | 0.812 ± 0.121 |
| Foot rotation | 0.858 ± 0.059 | 0.910 ± 0.058 | 0.884 ± 0.062 | 0.802 ± 0.113 | 0.833 ± 0.101 | 0.818 ± 0.106 |
| Inter-tester** |
|||
|---|---|---|---|
| Joint angle motion | Left | Right | L-R Average |
| Sagittal plane | |||
| Pelvic tilt | 0.448 ± 0.203 | 0.349 ± 0.201 | 0.394 ± 0.198 |
| Hip flexion/extension | 0.983 ± 0.014 | 0.984 ± 0.015 | 0.984 ± 0.014 |
| Knee flexion/extension | 0.992 ± 0.002 | 0.992 ± 0.003 | 0.992 ± 0.003 |
| Ankle dorsiflexion/plantar | 0.971 ± 0.007 | 0.977 ± 0.006 | 0.974 ± 0.007 |
| Frontal plane | |||
| Pelvic obliquity | 0.973 ± 0.013 | 0.969 ± 0.018 | 0.971 ± 0.015 |
| Hip abduction/adduction | 0.966 ± 0.023 | 0.959 ± 0.025 | 0.963 ± 0.024 |
| Knee varus/valgus | 0.794 ± 0.142 | 0.770 ± 0.215 | 0.782 ± 0.179 |
| Transverse plane | |||
| Pelvic rotation | 0.893 ± 0.094 | 0.883 ± 0.110 | 0.888 ± 0.100 |
| Hip rotation | 0.845 ± 0.148 | 0.753 ± 0.189 | 0.799 ± 0.172 |
| Knee rotation | 0.729 ± 0.160 | 0.799 ± 0.137 | 0.764 ± 0.150 |
| Foot rotation | 0.777 ± 0.118 | 0.756 ± 0.130 | 0.767 ± 0.122 |
*
‘Test-retest’: the average included both testers' sessions.
**
‘Inter-tester’: the average included the Day 1 session and the Day 2 session