Come into an elbow plank on the right side. Your feet should be staggered with the foot of the top leg in back.
Bring your bottom knee toward your chest and hold for two seconds. Place your foot on the ground and raise your top knee toward your chest and hold once again for two seconds before returning to the starting position.
Do not sway forward or backward or let the rib cage sag while marching in this position. This completes one rep.