Dear K-F: Your email was well recieved. I hate to admit it, but I really don't get the excercise I should. I am trying Tai Chi recommended by doctor. Low impact but involves most of the body. I hear my bones cracking. I do try (Try) to get out but I don't drive anymore. My daughter takes me to the mall at least 1 time a week and I walk out there. My legs and feet are fully involved. Discoloration, swollen, and they hurt inside. Had a few black/blue marks then something of a rash. I don't know but I will Tai Chi more and see it that helps. Thank you so much for the information. Gina 47/8 mos