Single-Leg Step-Down Test (SLSD)

Anterior cruciate ligament (ACL) tears are frequently observed in athletes, with a prevalence estimated at more than 250,000 ACL reconstructions performed each year (Frank et al., 1997; Majewski et al., 2006). Unfortunately, even after surgery and rehabilitation, between 37% and 55% of individuals do not return to competitive sport (Ardern et al., 2014; 2011). Furthermore, deficits in quadriceps…