This Plank Workout Challenges Every Muscle and You Can Print It

By Susi May

It's time to plank! We've gathered our favorite variations into one challenging workout that will strengthen and tone your arms, abs, back, and butt. Pretty much, it will strengthen you all over. Click here for a printable PDF of challenge and get at it.

POPSUGAR Photography | Kyle Hartman

Need a refresher on some of these moves? Learn the details on each plank here.