ABSTRACT
More than 5000 football-related anterior cruciate ligament (ACL) injuries occur annually in Australia. Around 60% of these injuries are non-contact and result from a landing, or when stopping, running, cutting and side-stepping. The tensile forces on the ACL can dramatically increase when the knee is more extended «300 flexion) and accommodating applied moments in flexion, combined with varus, valgus and/or internal rotation (Markolf et al., 1995). However, loading of the knee during the aforementioned sporting manoeuvres is largely unknown.
