Muscle Function Following Anterior Cruciate Ligament Reconstruction: Impaired Power Output in Physically Active Individuals

The goal of this clinical trial is to to determine the extent of the association between objective changes in the muscle function of the knee extensors (strength and power) and the function reported by the patient following ACL reconstruction surgery. The main questions it aims to answer is: \- Pre- and post-operative (6 months) changes in maximum knee extensor strength following ACL reconstruction, correlated with the IKDC-SKF score.

Inclusion Criteria: * Patients requiring isolated or complex ACL reconstruction (combined with a meniscal injury) * Patients who are physically active (Tegner score ≥ 4) and wish to resume such activity. * Patients with no history of surgery on the ipsilateral knee (i.e., native knee). * Patients able to comply with the study procedures * Patients who have given their free and informed written consent, having been informed of the purpose of the study, its procedure and its risks. * Be affiliated to a social security scheme. Exclusion Criteria: * Patient with comprehension difficulties * Recurrent rupture of the ipsilateral ACL * Multi-ligament injuries (i.e., injury to the medial collateral ligament, lateral collateral ligament or posterior cruciate ligament)