Need to update your workout routine? This is a killer total-body move that is harder than it looks! It takes balance and a lot of muscle control to properly perform this move, so make sure your abs are tight and you're keeping proper form!
Step 1: Lie facedown on the ball with your hands on the floor in front of you (the “up” part of a pushup), with only your shins and tops of your feet on the ball.
Step 2: Bring your knees in, pivoting them sideways so they come towards your right armpit.
Step 3: Move your legs back out to plank position, and then repeat on the other side. That’s 1 rep. Repeat for 10 reps.