Start in a traditional plank position with your forearms resting on the ground, elbows under your shoulders, and legs extended behind you. Engage your core and maintain a straight line from your head to your heels. Begin by lifting your right foot slightly off the ground and bringing your right knee toward your right elbow, aiming to touch or get as close as possible. Extend your right leg back to the starting position. Repeat the movement on the opposite side, bringing your left knee toward your left elbow. Continue alternating sides, maintaining stability and control throughout.