Look like 250? Please. Sprinters in comparison to distance runners are very very muscular. But compared to a strength athlete they are still very skinny.
A 250 lb man is a big man. To most people. My sometimes training partners are 275 and 300 respectively. Stand an olympic sprinter next to these guys and they look like skinny kids, which they are.
The fastest 250 lber on the planet, who is probably some NFL linebacker, or an Olympic Weightlifter, would not even be in the screen for the finals of an olympic sprinting event. Carl Lewis weighed in at a buck seventy. 170! My son turned 11 today. He holds the national record for his weight and age the best we can tell in the deadlift, and he weighs about 150. At 11 years old.
You guys need to broaden your perspective. Sprinters are not thick. Kenny Patterson is thick. Ronnie Coleman is thick.
However, the original point of this thread is well taken, comparitavely speaking sprinters are much much more muscular than marathoners and the reason for it (other than genetic predisposition, how many white sprinters are there?) is the way they train. If you want to be thicker and more massive, train for it.
B.