This exercise may look simple, but beware! It's a lot tougher than it apears to be. Give yourself sometime to nail this one as it truly is a great core exercise.
In this advanced exercise, Tommy shows you a step through method that engages major stability muslce in the lower body and ensures your core is fully flex for the period of the technique
The sit-up vs. crunch debate raged on for years, followed by a plethora of new ab products, all in an effort to get you a stronger, flatter stomach without putting pressure on your lower back. For now, it seems, the debate has reached an end with a nationwide consensus of trainers. A survey of over 3000 ACE-certified trainers* concluded that the best ab exercise is the Crunch on a Swiss Ball.
This swiss ball explosive and regular pushup exercise gives you 2 variations on 1 great technique. This is just another great exercise that you can use when looking to work your core!