There are exceptions.. Like fat basketball players.
But its pretty obvious, long distance running will make you look like a long distance runner. It's not just "genetic predisposition" making people enter certain sports. If I were ti get I. Shape for a marathon I would go from 222 to 180, and be thinner, pretty simple. Again, if you look at 100 people that partake In a physical activity on a regular basis you can get an idea of what that activity is doing to the body, with some genetic variation causing some fluctuation. It's pretty obvious. When I quit doing cardio, and lift heavy, I get barrel chased, and my overall thickness in my shoulders goes up.. My body is starting to morph into a power lifter. When I do lots of yoga and cardio and stop lifting so heavy, I look thinner. It's pretty simple guys, WORKING OUT IS NOTHING MORE THAN ADAPTING THE BODY TO CERTAIN ACTIVITIES.. That's all the changes in your body are, adaptations and your body. Hanging to help you complete the new tasks it thinks you have to do to survive. So what does your body loom like when you adapt to long distance running? What changes have to be made ti make short burst heavy lifts? Different body types serve different purposes, adapt your body the way you want.