Hold a pair of dumbbells in your hands with your arms straight and your palms facing away from you. Step your feet apart, so there's about 20 inches between your heels. Point your toes out slightly.
When you're ready, bend your knees and elbows at the same time. Keep your shoulders over your hips, and lower down, so your weight is back in your heels. Then, straighten your legs and arms. This is one repetition.
For another version of this move, Graca recommends holding your dumbbells with your palms facing forward and doing a sumo squat. When you come up to standing straight, complete one bicep curl. That counts as one full rep. "Your arms should be elongated again as you go into your next sumo squat," Graca says.