Table 3.

Participant Demographics, Patient-Reported Function, and Quadriceps Strength

Demographic	Group (No. [%])				P Value
	Both Strong and Symmetric (26 [15.0])	Strong Only (4 [2.3])	Symmetric Only (30 [17.3])	Neither Strong Nor Symmetric (113 [65.4])
Sex, No., males/females	18/8	3/1	11./19	41/72	.09
Age, mean ± SD, y	18.5 ± 3.3	20.2 ± 1.9	18.0 ± 3.5	19.0 ± 3.6	.44
Body mass index, mean ± SD, kg/m2	23.2 ± 3.3	21.9 ± 2.7	25.0 ± 5.0	25.0 ± 4.7	.22
Time since surgery, mean ± SD, mo	6.2 ± 0.55	5.8 ± 0.75	6.1 ± 0.55	6.0 ± 0.54	.46
Graft source, No.					.008
Bone-patellar tendon-bone	2	0	1	35
Hamstrings autograft	22	2	28	67
Quadriceps tendon autograft	0	1	0	8
Allograft	2	1	1	2
Unknown	0	0	0	1
Meniscal surgery at time of ACLR, %	46.2	25.0	50.0	55.8	.53
Tegner Activity Score, median [interquartile range]
Preinjury	10 [1]	10 [0.25]	9 [2]	9 [2]	.003a
Current	7.5 [3]	6.5 [1.75]	6 [2]	6 [2]	.002a
Quadriceps strength, mean ± SD, Nm/kg
ACLR limb	3.61 ± 0.44	3.74 ± 0.66	2.41 ± 0.41	2.13 ± 0.49	<.001a
Uninvolved limb	3.59 ± 0.49	4.33 ± 0.73	2.45 ± 0.43	3.06 ± 0.59	<.001a
Quadriceps strength limb symmetry index, mean ± SD, %	101.0 ± 7.2	86.4 ± 0.88	98.7 ± 6.6	70.8 ± 14.2	<.001a

Abbreviation: ACLR, anterior cruciate ligament reconstruction.

^aIndicates a significant difference.