Table 2. Biomechanical comparison between groups and limbs.

Variable	ACLR group surgical limb	ACLR group non-surgical limb	Control group matched limb	Control group unmatched limb	p-value	F	df
Cutting velocity	3.14 ± 0.32	3.22 ± 0.33	3.02 ± 0.40	3.08 ± 0.36	0.339	1.16	3,40
Hip
Peak extension (°)	11.53 ± 9.26	16.09 ± 11.83	16.55 ± 8.56	15.24 ± 9.14	0.017*	3.81	3,39
Extension excursion (°)	52.84 ± 11.34	58.65 ± 9.16	56.69 ± 8.08	54.59 ± 7.99	0.021*	3.58	3,44
Peak adduction (°)	−0.37 ± 7.28	0.26 ± 6.69	1.72 ± 4.41	2.26 ± 6.00	0.630	0.58	3,49
Peak extensor moment (Nm/kg)	2.49 ± 1.18	2.41 ± 1.09	2.53 ± 0.97	2.60 ± 0.92	0.839	0.28	3,38
Peak abduction moment (Nm/kg)	1.67 ± 0.51	1.64 ± 0.44	1.64 ± 0.38	1.50 ± 0.40	0.510	0.78	3,50
Knee
Peak flexion (°)	44.16 ± 10.20	48.20 ± 6.81	50.26 ± 7.74	51.50 ± 7.82	0.013*,†	4.09	3,41
Flexion excursion (°)	26.88 ± 6.55	32.12 ± 5.92	31.04 ± 7.74	31.17 ± 7.35	0.002*	5.78	3,42
Peak valgus (°)	8.41 ± 5.52	8.53 ± 5.41	9.03 ± 4.43	8.24 ± 4.75	0.930	0.15	3,49
Peak extensor moment (Nm/kg)	2.61 ± 0.70	3.14 ± 0.43	3.01 ± 0.45	3.27 ± 0.50	<0.001*,†,#	10.52	3,45
Peak varus moment (Nm/kg)	0.33 ± 0.22	0.36 ± 0.21	0.42 ± 0.26	0.50 ± 0.23	0.144	1.88	3,50

Notes:

The F column lists the F-statistic from the linear mixed model. The df column lists the degrees of freedom from the linear mixed model (numerator df,denominator df).

^*A significant difference between the surgical and non-surgical limb in the ACLR group.

^†A significant difference between the surgical limb of the ACLR group and the matched limb of the control group.

^#A significant difference between the matched and unmatched limbs in the control group.