Aaron Marino of alpha m. is a great option for doing abs. Alpha demonstrates how to use the stability ball.
The stability ball is a great way to engage your core and add spice & fun to your workout:
- The core stabilizing muscles are used when you pause during the crunch.
- Aaron also uses the ball for push-ups which increases the difficult exponentially.
- Also you can use the ball as a seat during side rises, presses, and flies with dumbbells. Don’t use the ball with heavy dumbbell press, however.