Four ways to improve your posture and shape up your shoulders from Kelly Huggins, a fitness trainer in Atlanta.
Lie on your stomach with arms at your side, palms up. Keep your legs straight and point toes toward floor. Slowly raise your upper body off the floor and hold for two seconds. Lower your head to the floor. Do two to three sets of eight to 15 lifts.
Advanced: Hold yourself in the raised position 10 or more seconds.