Why trainers say you should start every single workout with a plank

Your core is central to every move your body makes, which is why warming up your core in exercise is one of the most important parts of your routine.

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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.