Grasp two dumbbells and lie on incline bench. Hold dumbbells above chest with arms slightly flexed. Let palms face towards each other by internally rotating your shoulders.
With arms flexed lower dumbbells to sides, describing a semicircle, until elbows are at bench height. Raise dumbbells up the same way until they´re almost together.
Lift feet or put them on bench or dumbbell rack to avoid hollow back.