Stand on your left foot, leaning forward while lifting your right leg until your leg and torso are parallel with the floor. Squeeze your right glute, and bring the weights to your ribs with your elbows pointing toward the ceiling.
Keep your abs engaged as you exhale, straightening your elbows. Your arms will be a few inches above your back.
Inhale and bend your elbows, bringing the dumbbells back to your ribs to complete one rep.