 In general, women are three to six times more likely to suffer an anterior cruciate ligament, ACL, injury than men when performing similar levels of physical activity. This disparity is even greater in certain sports such as badminton, where female athletes are up to ten times more likely to sustain an ACL injury than their male counterparts. One possible explanation for this gender gap is that women tend to be less physically fit than men, making them more susceptible to injury. However, other factors such as muscle strength, flexibility, and body composition may also play a role. Additionally, research suggests that women's lower leg stiffness and knee joint mobility may make them more prone to ACL injuries. This article was authored by Yanan Zhang, Zhehu, Byran Li, and others.