Begin in a relaxed position, laying on your back with your legs extended, feet together, and arms extended overhead.
Shorten your core, by moving into posterior pelvic tilt. As you do this create total body tension. Squeeze your glutes, press your lower back into the floor. As your core braces, lift your legs a few inches off the floor, and also lift your shoulders and upper back. Squeeze at the top in you hollow position and then relax back down. Reat for repetitions.