One of the major things I'm considering before going full-time is physical exercise. At age 70, my arthritis requires heavy weight exercise. I realize that many RV Parks have facilities for exercising but if I should do a lot of boondocking, I would not have this luxury. Has anyone found a program of exercises that can be accomplished in a small confined area, such as isotonic exercises? Walking is part of my existing program and that would not need to change but other muscles need proper exercise. Thanks for any help you may give.