I'm not a md either but I believe "ankle support" is self explanitory. It is made out of a ballistic nylon type material laces in the front and TEMPORARILY supports the ankle during injury recovery. It does restrict movement ever so slightly but not enough to hinder play. My DD said it felt good to lace it on. Have you ever used an ace bandage or had a doctor tape your toe when its broken?. My DDs team trainer has a roll of med tape on his hip and he whips it out faster than wild bill hickock. Having temporary support will also relieve pain which in turn stops the brain from sending relief in the form of swelling. Keep in mind I am not a doctor...I just play one on TV.
DonnieS,
We are from Orange County Ca and we bought ours at Chick's Sporting Goods