I went and ran 4 miles this morning as the sun was coming up. I wanted to do it outside since it is really boring running in the gym but since I don't know where to go from my house I went down to the trail at Marymoore and ran out and back 4 miles in about 37 min. I took it sort of easy because of my knee. I would not say my knee hurt but it does not feel right. I still can't really stretch my left quad - so I used the stick when I got home to try and loosen it.