Univesity of Minnesota hockey Thomas Vanek and strength and conditioning coach Cal Dietz, teach Ankle Band Work. “”Ankle Band Work is the main injury prvention exercise that we do, we want to strengthen the tendons. I do that for every one of my athletes. We want to strengthen the ankle, so that if the ankle does roll. As you see in the exercise you wrap your leg around the band, and then you pull on one side, and you resist, doing sets of 8-10. Then you take the resistance side and loosen up, pulling on the other side, and resisting the other way.”"