Take the bench press, for instance.

The traditional barbell bench press enables you to lift a lot of weight, depending on your fitness level.

Being able to lift heavier weight, in general, makes it easier to build muscle."

fit, muscular man doing barbell bench press

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This allows you to recruit more muscle fibers during the exercise and better train the muscle fibers you recruit.

This, in turn, leads to more overall muscle building."

The weight you use trains certain muscle fibers over others.

fit man doing barbell bench press exercise, concept of strength exercises for men in their 30s

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This is why it’s beneficial to switch up the weight you lift and corresponding reps as time passes.

“Each rep range will help you build muscle but focuses on training different [muscle components].