“Developing strong, muscular legs is a two-step process," says Brynn Putnam, founder of NYC’s Refine Method. "First, you need to build your body’s largest muscle groups—glutesquads, and calves—proportionally. Second, you need to reduce body fat levels enough that this muscle development is visible.”

That’s exactly why high-intensity interval training (aka "HIIT") is so clutch. With this 20-minute, high-intensity workout, you'll not only hammer each of the major muscles in your legs—you can do it in less time, to boot.

Directions

Do these five exercises one after the other, repeating the circuit four times through. Rest only if absolutely necessary.

For more legs workouts

Check out the 30 best leg exercises of all time, the workout to build strong, muscular legs, and the dumbbell circuit to carve lean muscle in your legs and shoulders.

For a complete archive of our daily quick-hit routines, go to mensfitness.com/todaysworkout.