Start in a plank position with each hand on a light weight. Your feet should be slightly wider than your hips.
Bend you right elbow to raise the right weight to your ribs in a row. Keep your body parallel to the floor by squeezing your glute muscles and keeping your core tight.
Lower your right arm and the weight and then balance on your right arm as you row with you left arm.
Repeat 20x with each arm.