Table 3.
ICC, SEM, and MDC values of measurements.
| Test | ICC* | 95% CI | SEM | MDC | ||
|---|---|---|---|---|---|---|
| Lower bound | Upper bound | |||||
| Cadence (steps/min) | 0.915 | 0.854 | 0.951 | 3.50 | 9.7 | |
| Speed (m/s) | 0.941 | 0.898 | 0.966 | 0.29 | 0.8 | |
| Gait cycle duration (s) | Affected side | 0.926 | 0.872 | 0.957 | 0.28 | 0.78 |
| Less affected side | 0.927 | 0.875 | 0.958 | 0.28 | 0.78 | |
| Stride length (m) | Affected side | 0.974 | 0.955 | 0.985 | 0.19 | 0.57 |
| Less affected side | 0.977 | 0.960 | 0.986 | 0.18 | 3.27 | |
| % Stride length (% height) | Affected side | 0.942 | 0.900 | 0.966 | 3.87 | 10.73 |
| Less affected side | 0.948 | 0.910 | 0.970 | 3.64 | 10.09 | |
| Step length (% str length) | Affected side | 0.844 | 0.730 | 0.909 | 1.14 | 3.16 |
| Less affected side | 0.850 | 0.741 | 0.913 | 1.09 | 3.02 | |
| Stance phase (% cycle) | Affected side | 0.866 | 0.769 | 0.922 | 1.16 | 3.22 |
| Less affected side | 0.864 | 0.765 | 0.921 | 1.20 | 3.33 | |
| Swing phase (% cycle) | Affected side | 0.865 | 0.766 | 0.922 | 1.16 | 3.22 |
| Less affected side | 0.864 | 0.764 | 0.922 | 1.21 | 3.35 | |
| First double support phase (% cycle) | Affected side | 0.799 | 0.653 | 0.883 | 1.04 | 2.88 |
| Less affected side | 0.876 | 0.788 | 0.928 | 0.86 | 2.38 | |
| Single support phase (% cycle) | Affected side | 0.847 | 0.736 | 0.911 | 1.30 | 3.6 |
| Less affected side | 0.873 | 0.781 | 0.927 | 1.15 | 3.19 | |
| Elaborated steps | Affected side | 0.885 | 0.801 | 0.933 | 1.01 | 2.8 |
| Less affected side | 0.887 | 0.805 | 0.934 | 1.05 | 2.91 | |
| Gait cycle symmetry index | 0.832 | 0.710 | 0.902 | 3.19 | 2.84 | |
| Pelvic girdle angles | Tilt symmetry index (anterior/posterior) | 0.954 | 0.916 | 0.974 | 5.53 | 15.33 |
| Obliquity symmetry index (up/down) | 0.887 | 0.804 | 0.934 | 1.78 | 4.93 | |
| Rotation symmetry index (intra/extra) | 0.830 | 0.706 | 0.901 | 2.35 | 6.51 | |
ICC: Intraclass correlation coefficient, CI: Confidence interval, SEM: Standard error measurements, MDC: Minimal detectable change, min: Minute, s: Second, m: Meter, Analysis Duration (s): Duration of the whole trial, Cadence (steps/min): Number of steps in a min, Speed (m/s): Average walking speed, Gait cycle duration (s): Average value of the time interval between two consecutive heel strikes of the same foot, Stride length (m): Average value of distances between each initial contact and the next one of the same side, % Stride length (%height): Stride length normalized over the height of the subject, Step length (% str. length): Average value of distances between each initial contact and the next one of the contralateral side, Stance phase (% cycle): average value of the duration of the right and left foot support phase as percentage of the gait cycle, Swing phase (% cycle): Average value of the duration of the right and left swing phase as percentage of the gait cycle, Double support phase (% cycle): Average value of the duration of the phase in which both feet are in stance position as percentage of the gait cycle, Single support phase (% cycle): Average value of the duration of the phase in which only one foot is in stance position as percentage of the gait cycle, Elaborated steps: Number of strides considered in the analysis.