기술 Plank Workout

WE DON’T KNOW too many people who get excited about doing planks. Generally, you stare down your timer as the minute (or more) runs down. And while we’re being candid, let’s just come out and say it: Planks destroy your abs. For a pretty basic isometric exercise, planks strengthen your entire body—they make your core pop, strengthen your lower back, and build your shoulders.
Plank challenge provides 20 ways to do a plank and help you make a 30-day challenge to finish them. You can share with your friends, and challenge them to join you on the way to healthy and fit life with plank workout exercise!

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