I ran 3 miles on Saturday, for the first time in weeks. I made myself do walking in the middle for about 2 minutes and again for a minute ner the end. Amazingly, I had no pain or stiffness the next day, although my hip/back was talking a little during the run. I stretched aggressively, with all my stuff the PT assigned me. Of course, I ran exceedingly slowly, but it was a run. Will try again, perhaps tomorrow or Thursday.
I find that it's easier for me to run up a hill (slowly) than to run for an extended time on the flats.