Chris, I remember reading in the newspaper some years ago the results of a university (can't remember which one) study of human performance; among other things, they tested fitness of male athletes who were involved in sports at very high levels. Male ballet dancers had by far the highest overall fitness level of any of the elite athletes they tested. So there to the beat-skippers!
(I think gymnastics were next, figure skaters next, and other things like hockey and football and baseball were a lot further down the list...)
peace
minnie
