Get into push-up position, aligning hands under shoulders, and feet directly behind you, rising up on the toes. Inhale and lower body toward the floor, until chest is just above the floor. As you do so, rotate body to the left, bending the right knee and bringing the leg up and over toward the left side. Do not rest on the floor. Pause briefly at the bottom position exhale and push up through arms, bringing leg back to starting position. Then, perform the push-up on the opposite side. Repeat.