Recently I dragged out my old Exerciser 2000 Elite. It is a machine where you lay on the floor on your back, put your ankles in it and it moves you in a serpentine motion. It increases circulation and loosens muscles. It was originally for my husband. With 2 weeks of use, I am able to walk better, I can actually kind of stride. They sell for a lot, but I found one for a friend at Mercari for $60 including shipping. If anyone buys one, a used one probably won't have instructions and I can tell you how to use it. I'm 80, I think it can help anyone.