1. Hook Lying - Supine
Lay on your back with knees bent.  Breathe in as you arch the lower back up.  Breathe out slowly while pressing lower back down on the floor.  Repeat 10 times.Lay on your back with straight legs.  Breathe in as you arch the lower back up.  Breathe out slowly while pressing lower back down on the floor.  Repeat 10 times.