Can you sit down on the floor and get back up without touching your hands, knees, legs or arms to the floor? And can you get back up without doing it either? Apparently that's a pretty good indication of health according to some Brazilian researchers. So, of course, I had to try it and I'm happy to report I can do it! I can also feel it really working the thighs to try and do it so it might be a good new exercise, hehe.