HOW: Lie on your back and bring your knees up with your lower legs pointing straight out. Start from the neck and slowly lift your upper back off of the ground until you feel your upper abs engaged. Think of curling up, one vertebrae at a time, and peeling it off the ground. Once you reach as high as you can go, repeat the process in the opposite direction, one vertebrae at a time.
FEEL: You should feel your core working during this exercise. Particularly, your upper abdominals will work the most.
COMPENSATION: Don’t lift all at once! Remember to “roll” up. Keep your knees up and feet out as you roll up.