What's a Plank Jack?

Start in plank position with your arms extended and hands under your shoulders, feet together. ... Jump both feet out wide to each side as if you were doing a horizontal jumping jack. Stay in plank position as you quickly jump your feet back together. Continue to jump back in and out.

What is a plank Jack Pike?

Begin in plank position with your feet together. Use your abs to pull your hips directly up while keeping your legs straight, and jump your feet forward, landing in pike position. ... Jump your feet back to plank, keeping your core tight and stable. This counts as one rep.

What are hump planks?

Place your forearm on the mat underneath your shoulder perpendicular to body. Place upper leg directly on top of lower leg and straighten knees and hips. Place the opposite hand on your hip or to make it more challenging straighten the arm into the air. Raise body upward by straightening waist.