Table 5 Inter and intra-rater reliability, standard error of measurement, and minimal detectable change of gait parameters
| Â | Inter-rater reliability | Intra-rater reliability | Standard error of measurement | Minimal detectable change |
|---|---|---|---|---|
Speed (m/s) | r = 0.970** | r = 0.970** | 0.04 | 0.12 (12.4%) |
Stride length (m) | r = 0.975** | r = 0.982** | 0.03 | 0.09 (8.1%) |
Stride time (s) | r = 0.948** | r = 0.958** | 0.03 | 0.10 (8.1%) |
Step length (m) | r = 0.977** | r = 0.970** | 0.02 | 0.06 (10.6%) |
Step time (s) | r = 0.947** | r = 0.960** | 0.02 | 0.05 (7.8%) |
Step width (m) | r = 0.943** | r = 0.894** | 0.01 | 0.03 (23.9%) |
Cadence (step/min) | r = 0.939** | r = 0.951** | 3.17 | 8.79 (8.6%) |
Step asymmetry (m) | r = 0.636* | r = 0.767** | 0.03 | 0.09 (103.4%) |
Swing time (s) | r = 0.834** | r = 0.802** | 0.04 | 0.11 (33.0%) |
Double support time (s) | r = 0.904** | r = 0.814** | 0.08 | 0.22 (50.7%) |
Trunk obliquity (°) | r = 0.846** | r = 0.805** | 1.01 | 2.80 (35.7%) |
Trunk tilt (°) | r = 0.905** | r = 0.886** | 0.77 | 2.15 (25.1%) |
Trunk rotation (°) | r = 0.913** | r = 0.885** | 2.62 | 7.25 (28.1%) |
Pelvic obliquity (°) | r = 0.821** | r = 0.924** | 2.10 | 5.81 (54.1%) |
Pelvic tilt (°) | r = 0.877** | r = 0.965** | 6.07 | 16.82 (78.4%) |
Pelvic rotation (°) | r = 0.968** | r = 0.942** | 2.42 | 6.70 (35.8%) |
Hip abduction-adduction (°) | r = 0.787** | r = 0.838** | 2.05 | 5.69 (42.0%) |
Hip flexion-extension (°) | r = 0.889** | r = 0.862** | 3.26 | 9.04 (16.5%) |
Hip height variation (cm) | r = 0.746** | r = 0.856** | 0.01 | 0.04 (56.9%) |
Knee valgus-varus alignment (°) | r = 0.881** | r = 0.915** | 2.48 | 6.90 (32.5%) |
Knee flexion-extension (°) | r = 0.893** | r = 0.938** | 2.59 | 7.17 (15.0%) |
Knee height variation (cm) | r = 0.829** | r = 0.711** | 0.08 | 0.22 (110.7%) |
Ankle height variation (cm) | r = 0.922** | r = 0.859** | 0.02 | 0.05 (29.8%) |