I Did 100 Plank Jacks Every Day For A Week — Here’s What Happened To My Body

What do you get when you cross a jumping jack with a plank? A plank jack. This awesome dynamic core move is as intense as it sounds, as you tighten your stabilizer muscles to lock your body in as you jump in and out with your legs. But what are the benefits of a plank jack and what would happen if I added 100 plank jacks to my workout routine for a week?

If you want to get more bang for your buck on your abs workout, the plank jack is a great move to try because it works your abs and shoulders at the same time. As you jump in and out with your legs, your shoulders hold your body in a plank, which means you’re working on your shoulder strength and challenging your abs in this move.

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