Table 5.

Inter and intra-rater reliability, standard error of measurement, and minimal detectable change of gait parameters

	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%)

Inter and intra-rater reliability of the spatiotemporal and kinematic parameters. Minimal detectable change is expressed in absolute values and percentage (in parentheses). *: p < 0.05. **: p < 0.01