Abdominal Plank

Begin by lying prone on your stomach, propped up on your elbows.  Place your lower body weight on your toes and contract your abdominal muscles to raise your body off the floor.  Concentrate on contracting your abdominals and avoid contracting or "squeezing" your buttocks.  Notice that your low back should not sag.

 

Hold this position until you feel some fatigue.  Repeat as advised by your healthcare provider.