Winter Olympic Athletes: Who Is Fittest?

By Stephanie Pappas, Senior Writer Published: 02/07/2014 08:18 AM EST on LiveScience The Winter Olympics boast a wide variety of sports, from rather sedate-looking curling to fast-and-furious speed skating. So is one type of athlete fitter than another? It's hard to say. Olympic athletes are, as a rule, mind-bogglingly fit. Many Olympic athletes train for up to seven hours a day. But what fitness means depends on the sport. A bobsledder has the strength and power to push a 400-lb. (180 kilograms...