I decided that I'd try to run as opposed to jogging now Ive graduated. I started on week 2 intending to go through the program as before. (Actually meant to start on week 1 but forgot it was on my dead mp3 player so had to do Wk2 as it was on my phone). I managed all six runs and notpheidippides said I was properly running. Up till then I had only managed a flat footed trog I was panting hard and my legs felt heavy but I ran to the end of the 6th run. My problem is that as soon as I stopped running after the 4th and following runs my knee hurt. It's still hurting now when I walk...not agonisingly but painful. That was Friday and tomorrow is my next running day. Should I try running or rest it? We're going for a gentle walk later today. Hopefully it may ease.....?