When Can I Run After My ACL Repair?

Returning to running after ACL reconstruction is an exciting milestone for many athletes. However, it’s important to approach this stage with caution to ensure a safe and successful recovery. At Instinct Health, we emphasize a criteria-based approach rather than a strict timeline, focusing on your strength, stability, and readiness to handle the demands of running. Here’s what you need to know.

The Typical Timeline for Getting Back to Running After an ACL

While every recovery journey is unique, most people can start running approximately 12–16 weeks after surgery. This timeline can vary depending on factors like the extent of your injury, the type of graft used, and your rehabilitation progress.

However, the timeline alone isn’t the most critical factor—your readiness to run depends on meeting specific physical benchmarks.

Key Criteria for Running Post ACL

Before returning to running, it’s essential to ensure your body is prepared to handle the impact and repetitive nature of the activity. Here are the key criteria we assess at Instinct Health:

1. Strength and Symmetry
   • What We Look For: Your quadriceps and hamstrings should have at least 90% strength compared to your non-injured leg.
   • Why It Matters: Muscle imbalances can increase stress on your ACL and lead to compensatory injuries.
2. Dynamic Stability
   • What We Look For: The ability to perform single-leg balance and hop tests with control and confidence.
   • Why It Matters: Running requires dynamic control through your entire lower body. Any instability increases your risk of re-injury.
3. Range of Motion
   • What We Look For: Full knee extension and near-normal flexion (bending) to ensure proper mechanics during running.
   • Why It Matters: Limited motion can alter your running gait and place undue stress on your knee and surrounding structures.
4. Pain and Swelling
   • What We Look For: No pain, swelling, or instability during walking, jumping, or other lower-impact activities.
   • Why It Matters: Pain or swelling indicates your knee isn’t ready for the higher loads of running.

How We Transition You Back to Running 

At Instinct Health, we use a graded approach to reintroduce running:

• Treadmill or Soft Surface Runs: Start with short intervals on forgiving surfaces to reduce impact on your knee.
• Gradual Progression: Alternate between walking and jogging, gradually increasing the duration and intensity of your runs.
• Form and Gait Training: We assess your running mechanics to ensure proper alignment and reduce the risk of compensatory injuries.

Why Rushing Back After an ACL Can Be Risky

Returning to running too soon can compromise your recovery and increase the risk of re-injury or graft failure. It’s better to take a cautious approach and focus on long-term success rather than rushing back prematurely.

Ready to Run? Let Us Guide You!

Running after ACL repair is an exciting goal, but it requires careful planning and guidance. At Instinct Health, our experienced physiotherapists can help you meet the criteria for running safely and confidently. Book an appointment today, and let’s work together to get you back on track.