Start in a plank position, with palms spread out evenly and your shoulders over your wrists and legs out behind you. Pull your belly button in, and keep your back straight.
As you lower and exhale, bend your elbows outward to the sides. Hold at the bottom for one breath.
Raise back up to top push-up position. As you reach the top, keep moving in a fluid motion to side plank position: release your left arm and raise it to the ceiling, keeping your body in a long diagonal line. Hold for one breath, then move back into push-up position.
Repeat as many as you can, alternating which arm you are raising, for 30 seconds.