Trainers share their favorite (and least favorite!) gym machines

Curious about gym machines? Here, the best and worst gym machines explained by trainers tell you what to use and what to skip at your next sweat sesh.

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Photo: Getty/<br />Chobsak Dararuang / EyeEm

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.