Plank Ups

Start in a high plank. Bend the right arm to lower your elbow and forearm to the ground. Lower the left arm to come to a low plank position on both elbows. Place your right hand on the ground, followed by your left hand, to push back up to start. Repeat this movement, this time starting with the left arm. Continue alternating until you complete 20 total reps (10 on each side).