Quadriceps strength does not modify gait mechanics after acl reconstruction, rehabilitation and return to sport training

Individuals after anterior cruciate ligament reconstruction (ACLR) walk using aberrant mechanics, (e.g., smaller involved knee flexion angles and moments and medial tibiofemoral joint under-loading) linked to the early development of osteoarthritis. Limited research has studied the relationship between quadriceps strength and gait mechanics after ACLR, rehabilitation, and return-to-sport (RTS) training. We analyzed data from 77 participants after ACLR, post-operative rehabilitation, and RTS training. We found no significant or meaningful correlations between quadriceps strength and our gait variables after RTS training. Interventions among those who are well-rehabilitated may not be adequately targeting gait post ACLR.