Up Dog/Chaturanga Dandasana
Start in Plank Pose with your palms flat on the floor, hands shoulder-width apart, shoulders stacked directly above your wrists, legs extended, and core engaged.
Slowly lower down to a Low Plank by bending your elbows, keeping them tucked in close to the side of your body, until they form 90-degree angles.
Hold for 1 breath.
Typically, this pose is followed by Upward-Facing Dog, the next pose on this list.
Your shoulders shouldn't come lower than elbow-height. There's no shame in doing the move from your knees if it helps you maintain proper form.