plank stacking

  1. forum_admin

    Step Boss Plank Stacking

    Did you know that you can make planks more challenging and fun by using your step’s risers? In the STEP BOSS Ab Stacker Bonus Abs workout you will do an exercise we call “plank stacking” to challenge and strengthen your core in a unique and different way. *Become a STEP BOSS and Fall in Love...
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