After my back surgery,, I really had problems with walking, which didn't help that I previously had both knees replaced. Then my ankles started being undependable. Before all this, I had excellent balance and could stand on one foot longer than anyone I knew. After falling twice, I realize that I was not thinking about my walking while I was doing it. My mind was somewhere else, and even though I have been walking for 82 years, it is still necessary to concentrate on what you are doing at the moment. It is embarrassing to not be able to get up off the floor once you are down. So now I practice my gait in the hall and I actually thinking about walking instead of the next event. It helps and I don't feel so stupid anymore. Dorisena