Table 3.

Knee Flexion Angle Values of Studies Reviewed.

	Knee Flexion IC (Degrees)			Peak Knee Flexion (Degrees)			Knee Abduction IC (Degrees)			Peak Knee Abduction Moment (N·m)
	Injured	Control	p-Value	Injured	Control	p-Value	Injured	Control	p-Value	Injured	Control	p-Value
Krosshaug 2016 [12]	−2.2 ± 4.7	−1.7 ± 4.1	0.51	92.2 ± 13.8	90.8 ± 14.9	0.62	−2.2 ± 4.7	−1.7 ± 4.1	0.51	21.2 ± 12.2	20.9 ± 11.0	0.91
Hewett 2005 [18]				71.9 ± 12	82.4 ± 8.0	<0.05				−45.3 ± 28.5	−18.4 ± 15.6	<0.001
Boden 2009 [25]	21.8 ± 7.0	18.3 ± 7.5	0.2504	17.6	39.3	0.0001	5.5 ± 6.0	5.6 ± 6.7	0.96	NS	NS
Montgomery 2018 [27]	13.6 ± 3.63 **	23.6 ± 17.3 **	<0.001 **	NS	NS		NS	NS		NS	NS
Olsen 2004 [30]	15.8 ± 5.8	NS	NS	NS		13.15	NS		12.6	NS
Leppänen 2017 [32]	30.2 ± 11.7	27.6 ± 9.0	0.29	81.5 ± 10.0	84.6 ± 10.3	0.25	0.9 ± 5.8	−1.8 ± 6.7	0.12	37.1 ± 24.9	31.2 ± 22.0	0.32
Numata 2018 [33]	NS	NS		NS	NS		2.1 ± 2.4 *	0.4 ± 2.2 *	0.006	8.3 ± 4.3	5.1 ± 4.1	0.007

Table 3 displays the mean knee flexion angle, reported as degrees ± standard deviation (when available) of ACL injured vs. control subjects (those that were not injured). IC = initial contact; NS = not studied. * reported in cm. ** Data collected from direct communication with author.