Join Date: Oct 2009
Location: Montreal, Quebec, Canada
Well I have a belly and a black belt in judo. And I can tell you that a belly is not an advantage. As some others might have pointed out, you get leverage from your hips with the jujigatame(armbar)technique.
Basically, when you lye down to extend your opponents elbow joint, this joint is lower than the belly button, about 3 inches lower.
If there is a technique where one could be advantaged by a belly, its called ''hara gatame''. Google it and you will find it.