• Perform push-up. At top of movement, rotate body into side-plank position with one arm on ground and other extended toward ceiling

• Slowly rotate back to top of push-up position

• Perform push-up and repeat rotation to opposite side

Form Matters: “Do not allow your hips to dip when you rotate into the side position.
Keep your hips high and your whole body rigid—especially your core—so your body forms a straight line. Your ankles, knees, hips, lumbar spine and shoulders should all be in
the same plane.”

Why he does it: “This motion requires a tremendous amount of shoulder stabilization.
When you get to the top of the rotation, the bottom shoulder is supporting and balancing a great deal of body weight, and your core has to work to keep your body rigid and in line.”