Why women are more likely to tear their ACLs
Effects of Hormones on ACL Injury Risk.
The anterior cruciate ligament (ACL) is frequently injured. Of the 120,000 significant ACL injuries that occur each year, they happen more often to females, and among athletic populations (Kaeding, Lager-St-Jean, & Magnussen, 2017). Female athletes are 2-8 times more likely to experience ACL tears due to a combination of anatomical factors and hormonal factors, neuromuscular factors, and different levels of hormones affecting ligament stiffness than male athletes. Anatomical sex differences between females and males include the structure of the surrounding areas and the properties of the ACL.