Hi all. I have decided to lose weight and want to begin an exercise program. I had a partial knee replacement in August 2016 so cant follow the Couch to 5K running program. Are there any guided programs for people in my position? I'm new here by the way, aged 54, badly overweight (25st) and want to do something about it. Any help, advice would be gratefully. I quit smoking 2 years ago and have not touched one since so I know I have the willpower, just need the guidance. Thanks.