This morning, I went to take a little walk/slow jog around a lake that's near my house. Usually, I'm only able to jog for a few minutes before I have to start walking again (I've got bad knees). Today, it was almost easy to jog for 10 minutes before I took a walking break. Woo hoo!
Of course, I think I pulled a muscle on my last little bit of jogging this morning, but I'm going to concentrate on those first ten minutes!