ACL injury rates are rising sharply in youth football players aged 12–18, making effective injury prevention more critical than ever. While biomechanics research has advanced, applying these insights to real-world clinical practice—especially during high-intensity movements like cutting or change of direction (COD)—remains challenging.

This study focuses on an overlooked tool: ground reaction forces (GRF). By analyzing over 6000 COD trials from competitive young athletes, it provides the first comprehensive benchmark of GRF metrics in 90° cutting maneuvers. The findings offer practical, data-driven guidance for sports medicine professionals looking to enhance ACL injury prevention and rehabilitation using force platforms, paving the way for smarter, safer return-to-play strategies.