[sebbie]

A low body fat body is more important in some sports than others and water polo doesnt require low body fat. Water polo has some characteristics of being on an offensive line on a football team. The ideal physique for winning the 400 m IM medley is not necessarily ideal for being a top-tier water polo player.

In terms of overall fitness the gymnasts probably are at the top of the heap, but I wouldnt expect a gymnast likely to be a very fast runner. The Rowers are very interesting too, as they have upper body strength like the gymnasts, but in doing one basic move. Generally they have big broad shoulders and powerful deltoids. The divers have the huge quadriceps that keep their legs very straight in the ideal dive, but you dont see those on swimmers, where big quads might actually impede speed. The cyclists tend to be very low body fat and huge thighs and calf muscles, but their upper bodies look weak compared with many other sports, in large measure because cycling does not generally stress chest muscles, only used to hold the arms on the handlebars.