Ab Roller vs Kneeling Cable Crunch With Alternating Oblique Twists

Hold the Ab Roller with both hands and kneel on the floor.

Now place the ab roller on the floor in front of you so that you are on all your hands and knees (as in a kneeling push up position). This will be your starting position.

Slowly roll the ab roller straight forward, stretching your body into a straight position. Tip: Go down as far as you can without touching the floor with your body. Breathe in during this portion of the movement.

After a pause at the stretched position, start pulling yourself back to the starting position as you breathe out. Tip: Go slowly and keep your abs tight at all times.

Connect a rope attachment to a high pulley cable and position a mat on the floor in front of it.

Grab the rope with both hands and kneel approximately two feet back from the tower.

Position the rope behind your head with your hands by your ears.

Keep your hands in the same place, contract your abs and pull downward on the rope in a crunching movement until your elbows reach your knees.

Pause briefly at the bottom and rise up in a slow and controlled manner until you reach the starting position.

Repeat the same downward movement until you're halfway down, at which time you'll begin rotating one of your elbows to the opposite knee.

Again, pause briefly at the bottom and rise up in a slow and controlled manner until you reach the starting position.

Repeat the same movement as before, but alternate the other elbow to the opposite knee.

Continue this series of movements to failure.