- Lie face down on mat resting on the forearms, palms flat on the floor.
- Push off the floor, raising up onto toes and resting on the elbows.
- Keep your back flat, in a straight line from head to heels.
- Tilt your pelvis and contract your abdominals to prevent your rear end from sticking up in the air or sagging in the middle.
- Hold for 20 to 60 seconds, lower and repeat for 3-5 reps.
View this exercise in the Best Ab Workout.
If this is difficult for you, try this modified plank.