that's a great question. I'm really not sure. As a coach, I try to reduce the chances of it happening. As a parent, Ido what I can so my daughters get training that helps balance their body and helps prevent overuse injuries.
The strength & conditioning coach they have right now is very good at seeing where they are imbalanced and assigns them specific exercises to help correct it (in addition to their regular training).
As a mom, I'm not leaving the health and safety of my girls in ASA's hands!