This is a very tough variation of the traditional rollout that can't be done using an ab wheel.
With only one working arm, your body is forced to resist rotation. It's extremely challenging for the chest, shoulders, and lats.
The length of the barbell makes it difficult to keep the bar rolling straight, so it will also build wrist strength (radial and ulnar deviation).
related posts
Cressey's Favorite Exercises
A few unique exercises that Cressey gives to all his athletes, whether they're baseball players, powerlifters, boxers, or ordinary schlubs.
Tip: The Dumbbell Hip Thrust
Most people do hip thrusts for glute strength, but they can also be used as a high-rep finisher. Bonus: It's a quick setup with a dumbbell.
Tip: A Crazy Exercise That Actually Works
Some exercises are goofy looking and don't work very well. But some goofy-looking exercises are very effective. This is one of them.
Iron Evolution: Reflections – Part 1
The next phase in Dave's iron evolution is helping others, and he's starting with you.