I just read the post about purchases you've made and regretted, I'm thinking of buying a stationary bicycle and am afraid it may end up in that category I'm not a good walker because of my arthritis but I can ride a bicycle. I really want something to help me get my heart pumping. Anybody have any experience with them. I'm thinking of the type that has the option of moving your arms as well as your legs would be best. I could try to commit to 20 minutes a day and then work up.