Table 7.

Regression Analyses Performed Using Predictor Variables to Explain the Variance in Return-to-Play Timing

Model	Variable	R2 Value	P Value	ΔR2 Value	P Value
Return to play 3-mo variable
1	LSI: isometric extension	0.203a	.01	0.203a	.01
2	LSI: isometric flexion	0.249a	.02	0.047	.19
Return to play 6-mo variable
1	Pediatric International Knee Documentation Committee self-reported questionnaire score	0.292a	.004	0.292a	.004
2	LSI: isokinetic extension at 60°/s	0.394a	.003	0.102	.06
3	Anterior Cruciate Ligament Return to Sport After Injury score	0.429a	.006	0.036	.25
4	LSI: isometric extension	0.546a	.002	0.117a	.03

Abbreviation: LSI, Limb Symmetry Index.

^aIndicates difference (P ≤ .05).