How to Get Michelle Obama's Arms: The Workout Plan

Shoulder Press Progression

Using dumbbells, do this move 8 to 12 times. Be sure to stand tall, keeping your abs engaged. Good posture will actually help sculpt your back. "Muscles such as the rhomboids and rear deltoids are the 'forgotten' muscle groups because you can't see them in the mirror," says Smith. "If you don't strengthen them too, then your upper body won't be strong."

The Shoulder Press Progression will work your shoulders, arms, and upper back.