Start in side elbow plank on your right side with your feet stacked.
Place your left arm behind your head and inhale to prepare.
Exhale, engage the deep abs, and rotate your left rib cage toward the floor, bringing your left elbow to your right hand. Hold this a moment, twisting further to deepen your abdominal connection by pulling your navel in toward your spine.
Return to the starting position to complete one rep.