Step by step instructions
Stand with feet together, holding a dumbbell at either end parallel to the floor, and extend arms overhead. Take a wide step to the right, lowering into a side lunge by bending right knee over toes and pushing hips back as arms reach dumbbell to top of right foot.
Push off right leg and bring feet together, bending knees slightly, squeezing through inner thighs, and raising arms overhead. Keeping arms close by sides of head, bend elbows to lower the dumbbell behind head. Extend arms straight overhead, then lower to starting position.