Punch Proof Core - Ab Wheel Pushup Rollouts.

Johnny Grube doing 10 Ab Wheel Pushup Rollouts for a killer strong core.

Simple. Rollout do one pushup, extend out, roll back and repeat.

Ab Wheel Pushups are pretty difficult but add in the extension and you have a ass kicking exercise.

No other exercise will build a strong core like an Ab Wheel.

There is also a isometric part to it, because your core is engaged the entire exercise.

www.wildmantraining.com