Think you can only build significant size and strength in your legs with heavy weight training?

Then you haven’t tried this bodyweight workout from Men’s Health Fitness Director B.J. Gaddour.

Related: THE 21-DAY METASHRED—an At-Home Body-Shredding Program From Men’s Health That Strips Away Fat and Reveals Hard Muscle

The routine is broken up into five 10-minute sections that each entail just one exercise: the box squat jump, the Bulgarian split squat jump, the box squat, the Bulgarian split squat, or the single-leg box squat.

Each block also comes with its own set of directions, so the stimulus is different every 10 minutes, explains Gaddour. That means you can keep the intensity high the entire time.

And if you push yourself for 50 minutes straight, you’ll boost post-workout fat burn, increase your power, improve your stamina, and continuously activate all the muscle fibers in your glutes, hamstrings, and quads, he says. Enter beast mode.

Gaddour does this exact workout in hotel rooms when he’s on the road. But you can do it anywhere, really, since all you need is a bench, box, bed, or chair to do it.