The abdominal drawing in maneuver helps to strengthen and improve recruitment of the lower abdominal muscles, which provide support for your low back.
Begin lying on a mat with your knees bent and feet flat on the floor. You may place your fingers on your lower abdominal muscles just inside your hip bones so you can feel when they are contracting.
Tighten your lower abdominal muscles. Your muscles should flatten toward the floor as you contract them. They should not bulge. Hold the position for 10 seconds. Relax.