Think you’ve mastered the plank? Get back to me after you flip it and reverse it

There's a reason that the plank—and its many variations—gets serious results. Time to flip over and add the reverse plank to your gym shuffle.

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Photo: Getty Images/microgen

16 Upper Glutes Exercises Personal Trainers Swear By for a Stronger Butt

Why your upper glutes deserve more love, and the best exercises to strengthen them.

woman doing an upper glutes exercise with an exercise band.