Equipment
Ab Wheel
Body Parts
Abs

Step-by-step instructions

1. Kneel on the floor and hold an ab wheel beneath your shoulders.
2. Brace your abs and roll the wheel forward until you feel you’re about to lose tension in your core and your hips might sag. Roll yourself back to start.
3. Do as many reps as you can with perfect form and end the set when you think you might break form.