People are saying this 'Run the Rack' dumbbell method is the key to building lean muscle

Have you heard about a dumbbell workout method that involves “running the rack?” It might sound like something you’d find on Instagram workout inspo pages, but actually, it’s an old-school dumbbell method used by bodybuilders to help you reach failure, then move straight on through it.

The method has been credited with helping to pack on muscle mass and increase muscular output by reaching failure at every weight until you’ve finished moving through the rack of dumbbells. Here’s how to do it, and the all-important benefits.

How to ‘Run the Rack’

You might need to visit your gym at a quiet time or risk annoying your fellow gym-goers because you'll need access to a whole rack of dumbbells to run the rack effectively. Once you’re ready to go, choose a dumbbell exercise like reverse flyes,