With a flat back and rigid core, shift your weight onto your supported hand and row the right dumbbell up into your hip ( B).
Hold a dumbbell in one arm and hinge at the hips, letting the dumbbell hang and placing your empty hand onto a bench, box or wall for support ( A). With a flat back and rigid core, shift your weight onto your supported hand and row the right dumbbell up into your hip ( B). Pause briefly, then lower the weight under control. Repeat.