Time under tension (TUT) is a weightlifting technique designed to build muscle mass by increasing the time muscles spend activated during an exercise. We cover if it works and what its benefits are.

I’ve been a certified personal trainer (C.P.T.) for 15 years. In this decade-and-a-half period of time, I’ve been lucky to work with a wide range of people. This includes pro athletes of all levels, ...

This is read by an automated voice. Please report any issues or inconsistencies here. When you walk into a gym, you’ll see lifters meticulously counting sets, tracking reps and stacking plates. But ...