Much like the fitness round it the fitness shows, would a athletic round, instead of the challenge round help. One could use the Am. Gladiator as idea. Using that "how many balls can one put in a cylinder at a certain time" round in Am. Gladiator. This time it would be a competiot that challenges another competitor, and it is up to the one that is challenges to defend the goal (cylinder).
This would force competitors to be be more athletic, and not as huge, and demand the muscles to be functional. Remember how Ruhl tore a quad from just jumping, and Art Atwould tore a quud from walking up the stairs. Well if the tendons and ligaments were as strong as the muscles, that incidents might not have happened.
Thus, running, and this round would give athletic credance and validity to bbing, and would help keep the competitors in shape befitting an athletic event, no more bloated GH guts, or huffing and puffing. The competitors would have to come down in weight, but would have a better, crisper look.