Place two dumbbells on the floor, roughly shoulder-width apart. Stand between them with your knees slightly bent.
Lean forward from your hips and reach down to grab the dumbbells. Keep your back flat and your torso level with the floor. Brace your abs.
Bend one arm and pull the dumbbell up and into your side. Keep your upper arm close to your body.
Lower the weight back to the floor and then repeat on the opposite side. Continue alternating arms for the duration of your set.