S Samuel, No, NFL players do not need oxygen after running for 5-10 secs unless you have an unusual situation like a 300+ lb linebacker running lets say a fumble recovery for 90 yards, they are not conditioned for that (all though my philosophy says they should be). Also, no, Ronnie is not hitting and holding poses for 20min straight. Where did you get that from, your not the first person who said that.
ALSO, as far as bodybuilding goes. I dont hate it. I just think its rediculous to call bodybuilders athletes when there's absolutely no atletisism involved. I've done both so I know what I say!