Just when we thought we’d tried every plank out there, we found the hardest one yet

The seal walk is the modified plank variation that is *way* harder than its super-cute name would suggest. Here's how to do the move yourself.

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Photo: Getty Images/AleksandarGeorgiev

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.