The T-Test Is a Measure of Agility—Here’s How To Do It, According to a Trainer

The T-test for agility measures one’s ability to accelerate, decelerate, and change directions. Here is how to do it.

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Photo: Getty Images/filadendron

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.