Weekend Challenge! How long can you hold a Reverse Plank? This weekend, attempt...

Weekend Challenge! How long can you hold a Reverse Plank? This weekend, attempt...

Weekend Challenge! How long can you hold a Reverse Plank? This weekend, attempt this move several times—each time trying to hold it a little longer. The benefit? Sexy abs! Weak glutes contribute to unflattering belly bulge. This move will fix that. So...ARE YOU IN? read more..