Table 2. Subjective Scores and Functional Test Performance at Time of Release to Activity.

	Low Strength (n=364)	High Strength (n=164)	P Value
IKDC (0-100)	88.15 ± 13.59	93.52 ± 10.27	.000*
ACL-RSI (0-100)	76.19 ± 15.39	88.52 ± 16.90	.000*
Extension ROM Deficit (deg.)	2.22 ± 1.75	2.38 ± 1.98	.432
Flexion ROM Deficit (deg.)	3.73 ± 4.41	3.86 ± 4.78	.782
Single Leg Balance Deficit (cm)	2.12 ± 4.13	2.19 ± 4.90	.892
Quadriceps LSI at 60 °/sec (%)	89.25 ± 20.24	86.55 ± 19.48	.149
Quadriceps LSI at 180 °/sec (%)	87.35 ± 17.60	87.88± 18.23	.511
Quadriceps LSI at 300 °/sec (%)	89.73 ± 15.94	89.77 ± 14.15	.723
Hamstring LSI at 60 °/sec (%)	94.38 ± 9.14	93.55 ± 6.27	.833
Hamstring LSI at 180 °/sec (%)	93.95 ± 7.03	96.23 ± 5.42	.035*
Hamstring LSI at 300 °/sec (%)	93.45 ± 7.37	99.93 ± 8.82	.041*
Single Leg Hop (LSI)	93.90 ± 6.86	94.04 ± 5.09	.248
Triple Hop (LSI)	92.37 ± 7.10	92.26 ± 7.37	.983
Cross-Over Hop (LSI)	91.29 ± 6.27	91.49 ± 6.95	.172
6m Timed Hop (LSI)	99.14 ± 1.14	99.13 ± 1.15	.681

Values reported as mean ± std dev. *Statistical Significance at ≤ .05; Low Strength= patients demonstrating hip abduction strength: body weight (BW) ratio < 33%; High Strength= patients demonstrating hip abduction strength ratio ≥ 33%; IKDC= International Knee Documentation Committee Questionnaire; ACL-RSI= Anterior Cruciate Ligament Return to Sport After Injury Scale; ROM= Range of Motion; LSI= Limb Symmetry Index (involved limb/uninvolved limb).