One of my friends runs a company out of Sweden that does those insane running competitions. He has gone from a very fit pro ice hockey player, to a very fit distance runner - the difference in body is extreme.
The elliptical would be hard enough for me!
These Olympic athletes are amazing to watch, and a good deal of them are so young and still competing under such pressure.
And just think - kids of the same age at home in many families aren't even able to do their own laundry.