Forget everything you thought you knew about the plank, as the gymnast plank is about to change it. This killer variation blasts your core and posterior chain (the group of muscles that run along the back of your body) and is a serious challenge for anyone looking to up the ante in their ab workouts.
As always, I decided to practice what I preach, and I added the move to my pre-run warm-up for a week. My core still hasn’t forgiven me, and while I’m definitely no gymnast, read on to find out why I recommend adding this move to your workout routine.