ACL Return to Sport Testing

When student-athletes near completion of rehabilitation following an ACL injury, they will undergo evidence-based tests with their sports physical therapist to determine if they are ready to gradually return to their sport.

What to expect during the ACL return-to-sport testing

At approximately 12 weeks:

• Isokinetic testing scores >70% for the affected quads and hamstrings compared to the unaffected (Tested at 90, 180, and 300 degrees per second)
• Y-balance test
• Lateral step-down test

At approximately 24 weeks:

• Isokinetic testing with 66% or greater HS/quad ratio
  • > 90% for the affected quads and hamstrings compared to the unaffected
  • Tested at 90, 180, and 300 degrees per second
• Y-balance test
• 5-0-5 with less than .5 second difference right vs. left
• Subjective questionnaires completed to assess mental readiness
• 90% or greater on all jump testing
  • Single-leg hop for distance
  • Single-leg, triple hop for distance
  • Single-leg, triple-crossover hop for distance
  • Timed single-leg hop for 30 feet

If these criteria are met around 24 weeks postoperatively, your surgeon may recommend beginning transition back to sport, by working on agility, endurance and sport-specific activities.