Move of the Month: A Toned Upper Back

This sculpting move is an excellent back strengthener, since you're holding your body weight in addition to dumbbells, says Michele S. Olson, PhD, a professor of exercise science at Auburn University in Montgomery, Alabama.

1. Lean abs and hips on a stability ball, chest lifted, holding 3-pound weights in each hand, soles of feet against a wall for support.
2. Extend arms by ears and pump them up and down a few inches, keeping neck in line with spine.
3. Work up to three sets of 10 to 20 reps.

Originally published in Fitness magazine, December 2005.