http://www.thewalkingsite.com/12week.html This site has a plan for those just getting started and want to walk or have a low impact fitness program. It begins with 15 minute walks and goes to 60 minute walks.
https://www.youtube.com/watch?v=X6l5hE4KEBY
https://www.youtube.com/watch?v=MNL_DAI19_I
