Most athletes ask the same question after ACL reconstruction: "When can I play again?" The honest answer is that time alone does not decide it — your knee has to earn each stage.
Phase 1 (0-2 weeks): Protect and calm Swelling control, full passive knee extension, and quadriceps activation. Losing extension early is the single most common setback we see.
Phase 2 (2-6 weeks): Restore motion and gait Normal walking without a limp, closed-chain strengthening, and hip/calf work. We monitor quad girth and control, not just range.
Phase 3 (6-12 weeks): Build strength Progressive loading — leg press, split squats, hamstring bridges, and posterior chain work. Strength deficits under 20% compared to the other leg is the target here.
Phase 4 (3-6 months): Power and landing mechanics Plyometrics, deceleration drills, and change-of-direction patterns introduced only when single-leg control is clean.
Phase 5 (6-9+ months): Return-to-sport testing We use hop test batteries, isokinetic or handheld dynamometry, and sport-specific drills. We look for limb symmetry above 90% and confident, repeatable landing mechanics under fatigue.
Why testing matters Athletes cleared on criteria rather than dates have markedly lower re-injury rates. If you are mid-rehab and unsure where you stand, book an assessment and we will map your remaining gaps.