Step by step instructions
Stand on left leg, holding dumbbell with left hand, right leg bent and right foot lifted slightly off the floor behind body. Bend left knee and squat down, hinging forward at hips and reaching arms down towards the floor, keeping spine straight.
Bend left elbow behind body and pull dumbbell into side of torso. Extend left arm and return to starting position. Do 12 reps; repeat on opposite side. If you have trouble balancing, try this move in a split stance instead, with the back foot lightly tapped on the floor for stability.