Soleus strength is important for preventing ACL injuries by resisting tibial progression.

“it's also very important in the prevention of ACL injuries which I think is counterintuitive given that it's below the knee I mean when you look at any ACL um protocol it's always hamstrings right so biceps femoris all medial hamstrings strengthen strengthen strengthen but the research will look at and has shown that it's the strength of the Solus that prevents tibial progression I see and if you have if you can resist the tibial moving for the tibia moving forward you prevent the stretch on the ACL in that hit”