Instructions
Place two dumbbells on the ground in front of you, a little closer than shoulder width apart. Grasp hold of the dumbbell handles and force your weight down through them. With straight arms, place your knees on the floor and position your torso in a plank like position. Brace your core and row one of the dumbbells up to your waist, squeezing your arm back behind you. Your other hand should be pushing down on the dumbbells on the floor. Lower and repeat on the other side then repeat for the desired number of repetitions.
Tips
The wider you place your legs, the more stable you will be. To decrease the difficulty of this exercise, you can perform it on your knees.