Jumping After ACL Surgery: Uncovered Biomechanical Weaknesses

Nine months after having their anterior cruciate ligament (ACL) reconstructed, female athletes often face hidden biomechanical challenges. A study used a kinetic enhanced tuck jump assessment (TJA) to probe these hidden issues. The TJA helps spot risks linked to ACL injuries by evaluating landing forces. Researchers checked 38 athletes who had ACL surgery (ACLR group) and 21 healthy peers. They found that the ACLR group had some distinct differences. They took longer to land, had bigger body sway, and pushed less forcefully off the ground. The injured leg also had lower strength and flexibility compared to the healthy leg. The ACLR group showed bigger mismatches between legs in force, strength, and how quickly they landed. This disparity lasted throughout the jump. Even though the uninjured leg was stronger, the injured leg lagged behind. These findings suggest that injured athletes may struggle with a smooth stretch-shortening cycle, which is vital for efficient jumping. It's clear that tailored rehab exercises are needed to even out these kinetic imbalances. Plus, continuous monitoring is key for athletes hoping to safely return to competitive play after ACL surgery.