Table 4.

Inter-observer reliability based on kappa value and percentage of complete agreement

Item	Kappa value	% of complete agreement	Level of agreement	Rank (by kappa value)
Foot position initial contact	0.87	92.5	Almost perfect	1
Heel lift in stance	0.64	76.7	Substantial	4
Foot clearance in swing	0.49	74.2	Moderate	8
Foot progression angle	0.54	75	Moderate	6
Hindfoot varus/valgus	0.45	70	Moderate	11
Max ankle dorsiflexion in swing	0.52	69.2	Moderate	7
Max ankle dorsiflexion in stance	0.6	73.3	Moderate	5
Knee progression angle	0.36	65	Fair	12
Knee position terminal swing	0.68	79.2	Substantial	2
Peak knee flexion in swing	0.46	67.5	Moderate	10
Peak knee extension in stance	0.68	79.2	Substantial	3
Peak hip flexion in swing	0.21	65	Fair	15
Peak hip extension in stance	0.49	68.3	Moderate	9
Pelvic rotation at mid-stance	0.15	70	Slight	16
Pelvic obliquity at mid-stance	0.13	65.8	Slight	17
Max lateral shift of trunk	0.31	70	Fair	14
Peak sagittal position of trunk in stance	0.34	61.7	Fair	13