Table 1.

Inter-tester reliability and intra-tester reliability of knee joint angle measurements in sitting and supine

Position	Inter-tester reliability (n = 35)		Intra-tester reliability (n = 37)
	ICC[2,10]	SEM (°)	ICC[3,10]	SEM (°)
Sitting
Neutral knee position	-	2.31	-	1.21
Knee flexion position 1	0.79	1.48	0.87	0.90
Knee flexion position 2	0.68	2.97	0.86	1.25
Supine
Neutral knee position	-	1.97	-	0.80
Knee flexion position 1	0.71	2.03	0.75	1.51
Knee flexion position 2	0.58	3.55	0.76	1.74
Standing
Neutral knee position	-	1.61	-	1.61
Knee flexion position 1	0.57	3.20	0.87	1.37
Knee flexion position 2	0.80	1.94	0.88	1.31

ICC = Intraclass correlation coefficient, SEM = standard error of measurement

See the details of knee positions in text.