Vibrating insoles, bare feet, and balance

The Wall Street Journal online published an article describing the research of James Collins from Harvard. James wondered why people get less steady on their feet as they get older.His conclusion: They get less feedback from the ground and lose the ability to balance.So far so good.His solution: An insole that provides random vibration to stimulate the nerves in the feet.Can anyone here think of another way of doing the same thing, but without all the electronic bells and whistles? Anyone? Beuler? Beuler?If you said, "Take off your shoes!" you win any prize on the second row!If you said "Take... Read full post here