When Can I Run After ACL Reconstruction?

Running should be earned, not scheduled

A date on the calendar is not enough to decide whether someone is ready to run after ACL reconstruction. Time matters because the graft and surrounding tissues need to heal, but the knee also needs sufficient movement, strength, control and tolerance to impact.

What is commonly considered before running

The treating team will usually look at factors such as minimal or well-controlled swelling, full or near-full knee extension, useful flexion, a stable walking pattern, adequate quadriceps and calf strength, good control during single-leg tasks and the ability to tolerate lower-level impact without a flare-up.

How running is usually introduced

A graded walk-jog programme is often more sensible than immediately attempting a continuous run. Volume and speed can then be progressed gradually while monitoring swelling, pain, stiffness and confidence over the following 24 hours.

Running is not the same as return to sport

Being able to jog in a straight line does not mean the knee is ready for cutting, pivoting, jumping, contact or competitive sport. Those activities require a much higher level of strength, reactive control and sport-specific preparation.

Continue your ACL progression

Read the ACL Rehabilitation Resource Centre and see the complete ACL Reconstruction Rehabilitation Guide for staged running and return-to-sport preparation.

Trusted UK guidance

For general NHS recovery information after ACL surgery, see NHS: Recovering from ACL surgery.