Although very challenging, the Swiss ball rollout is an essential part of anyone’s quest for a six-pack. As you roll out on the ball, your abs are put under increasing tension, and any fitness expert knows that one of the secrets to building ripped, lean muscle is high muscular tension. Use this move in place of a crunch to carve out a defined six-pack.
Swiss Ball Rollout
6 years ago by gymforlife (28)