Id bring the kinetic chain into this question.
Injuring one part of the chain hurts others. Knee dysfunction will often lead to ankle and hip problems.
The hamstring will be especially important to ACL injuries, because it is on the opposite side of the body and may be used as an antagonist.
Activating that part of the body means that the ACL could be stimulated to stretch and shorten, but use the hamstring to lead it.