Lie down on the ground, and drive your lower back into the floor. Hold a light weight plate or dumbbell in both hands. Lift ...

Adding weighted ab exercises to your core training has more ... How to Do It: Lie on a decline bench, light weights held in your hands directly above your shoulders, torso parallel to the ground.

The best gym machines for building ab muscles - here's the best machines to use if you're working on your core strength ...