In this variation of a standing one-arm dumb-bell row,you'll work both arms at the same time. With your feet almost shoulder- width apart and your knees slightly bent, bend about 90 at the waist, keeping your head and chest up. Hold a dumb-bell at arm's length in each hand, palms facing behind you.

Bring your elbows up towards the ceiling and the dumb-bells towards your abdomen as you roll your shoulders back, squeezing your shoulder blades together at the top. Lower to the starting position, allowing your shoulders to roll slightly forwards, and repeat.