So I ran today for the first time since I hurt my knee last summer (about one year ago now)
It sucked. I ran one lap around a track for a warm up. Ran 5 sprints, walked two laps as a cool down and I was down. I think part of the reason I had such a hard time was cuz I had just finished lifting and I did power cleans and front squats which really gassed me. I'm going to start running sprints a few times a week.