Celeb trainer David Kirsch uses this two-step plank variation with clients like J.Lo

Want to sweat like J.Lo? Celeb trainer David Kirsch uses this two-step glider plank variation with his clients. Here's how to complete the move.

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Photo: Instagram/@jlo

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.