Any athlete runners or marathons here?

[Counterstrike]

just curious what you guys use to improve your cardio for the runs.
need to improve my time and distance

 

[Dirty Boy]

lol..i guess not. Marathon runners don't weigh 230 lbs and bench 315 lbs. I'm an endomorph so this doesn't apply to me as much but I would think running 26 miles would hinder muscle gain.