Table 2

Range of angles, averaged over the three cycles during the Single Leg Squat test for BTS (considered as reference standard) and IPI software-Kinect configuration

Test	Segment	Movement	System	Mean (SD)	95% CI		ICC(2,k) (95% CI)	P value	SEM	MDC
Test	Segment	Movement	System	(deg)	Lower (deg)	Upper (deg)	ICC(2,k) (95% CI)	P value	(deg)	(deg)
SLS_L (n=34)	THIGH	Flexion/Extension	BTS	42.5 (6.5)	40.2	44.7	0.532 (–0.21 to 0.84)	0.000	3.8	10.5
			iPi	52.6 (7.8)	49.8	55.3	0.532 (–0.21 to 0.84)	0.000	3.8	10.5
		Rotation	BTS	15.1 (3.2)	14.0	16.2	0.312 (–0.31 to 0.65)	0.069	3.5	9.6
			iPi	13.5 (4.5)	12.0	15.1	0.312 (–0.31 to 0.65)	0.069	3.5	9.6
		Abduction/Adduction	BTS	13.2 (4.7)	11.6	14.9	0.775 (0.55 to 0.89)	0.791	3.4	9.5
			iPi	13.5 (6.4)	11.2	15.7	0.775 (0.55 to 0.89)	0.791	3.4	9.5
	SHIN	Flexion/Extension	BTS	26.3 (5.3)	24.4	28.1	0.886 (0.73 to 0.95)	0.006	2.4	6.7
			iPi	28.0 (6.2)	25.8	30.2	0.886 (0.73 to 0.95)	0.006	2.4	6.7
		Rotation	BTS	21.0 (4.4)	19.5	22.5	0.126 (–0.31 to 0.47)	0.000	4.7	12.9
			iPi	15.5 (5.4)	13.6	17.4	0.126 (–0.31 to 0.47)	0.000	4.7	12.9
		Abduction/Adduction	BTS	15.5 (6.7)	13.1	17.8	0.718 (0.17 to 0.88)	0.000	3.4	9.4
			iPi	11.5 (5.2)	9.7	13.3	0.718 (0.17 to 0.88)	0.000	3.4	9.4
	FOOT	Flexion/Extension	BTS	4.7 (4.0)	3.3	6.0	0.324 (–0.20 to 0.68)	0.000	3.1	8.6
			iPi	12.2 (4.6)	10.6	13.8	0.324 (–0.20 to 0.68)	0.000	3.1	8.6
		Rotation	BTS	2.4 (1.8)	1.7	3.0	0.084 (–0.09 to 0.32)	0.000	2.6	7.2
			iPi	11.5 (3.8)	10.2	12.8	0.084 (–0.09 to 0.32)	0.000	2.6	7.2
		Abduction/Adduction	BTS	11.2 (4.1)	9.8	12.7	0.867 (0.73 to 0.93)	0.711	2.1	6.0
			iPi	11.4 (4.7)	9.8	13.1	0.867 (0.73 to 0.93)	0.711	2.1	6.0
SLS_R (n=34)	THIGH	Flexion/Extension	BTS	43.0 (10.6)	39.3	46.7	0.604 (–0.13 to 0.88)	0.000	3.9	10.7
			iPi	57.1 (9.6)	53.7	60.4	0.604 (–0.13 to 0.88)	0.000	3.9	10.7
		Rotation	BTS	13.9 (4.3)	12.4	15.4	0.515 (0.01 to 0.76)	0.891	3.4	9.4
			iPi	14.0 (4.0)	12.6	15.4	0.515 (0.01 to 0.76)	0.891	3.4	9.4
		Abduction/Adduction	BTS	16.1 (7.6)	13.4	18.7	0.758 (0.52 to 0.88)	0.134	4.1	11.4
			iPi	17.6 (5.6)	15.7	19.6	0.758 (0.52 to 0.88)	0.134	4.1	11.4
	SHIN	Flexion/Extension	BTS	26.3 (5.7)	24.3	28.3	0.854 (0.70 to 0.93)	0.051	3.1	8.5
			iPi	27.8 (6.9)	25.4	30.2	0.854 (0.70 to 0.93)	0.051	3.1	8.5
		Rotation	BTS	20.2 (4.4)	18.7	21.8	−0.210 (–0.76 to 0.26)	0.000	4.7	13.0
			iPi	14.1 (4.1)	12.6	15.5	−0.210 (–0.76 to 0.26)	0.000	4.7	13.0
		Abduction/Adduction	BTS	16.5 (9.3)	13.3	19.7	0.319 (–0.18 to 0.63)	0.000	6.2	17.1
			iPi	10.1 (4.1)	8.7	11.5	0.319 (–0.18 to 0.63)	0.000	6.2	17.1
	FOOT	Flexion/Extension	BTS	5.7 (2.7)	4.7	6.6	0.079 (–0.28 to 0.41)	0.000	4.0	11.0
			iPi	11.1 (5.2)	9.3	12.9	0.079 (–0.28 to 0.41)	0.000	4.0	11.0
		Rotation	BTS	2.2 (1.9)	1.5	2.9	0.102 (–0.10 to 0.36)	0.000	1.9	5.2
			iPi	8.4 (2.4)	7.6	9.2	0.102 (–0.10 to 0.36)	0.000	1.9	5.2
		Abduction/Adduction	BTS	10.2 (2.9)	9.2	11.2	0.707 (0.42 to 0.85)	0.070	2.2	6.0
			iPi	11.2 (3.6)	9.9	12.5	0.707 (0.42 to 0.85)	0.070	2.2	6.0

ICC(2,k), intraclass correlation coefficient (absolute agreement); MDC, minimal detectable change calculated as SEMx1.96x√2. P<0.05; SEM, SE of the measure calculated as the square root of the residual mean square; SLS_L, Single Leg Squat Left; SLS_R, Single Leg Squat Right.