Lifting weights does not stunt a child's growth. Here is what the research shows about growth plates, how youth strength training injury rates compare with soccer and rugby, and what safe, supervised training looks like.

The advice to avoid leg extensions after ACL reconstruction is outdated. Here is what the evidence actually shows about open-chain quad work, and why the deep range from 90 to 45 degrees should be a priority in your first twelve weeks.

Surgery is only the beginning. Here are the five evidence-based criteria I assess before clearing an athlete for return to sport after ACL reconstruction.