Running does build muscle as long as you are constantly challenging yourself. Running primarily builds muscles in the lower body like your glutes, quads, and hamstrings. To build muscle while running, be sure to fuel yourself with carbohydrates and proteins both before and after your workout.

Does running make you gain leg muscle?

Running builds up the muscles in your legs. ... The answer is a qualified yes — because running primarily uses your legs, you will develop sport-specific muscles over time. Video of the Day. However, the type of running you do makes a big difference — long-distance running builds leaner muscles, while sprinting adds bulk.

How long does it take to build leg muscle from running?

You can see small results in even two to four weeks, after you begin a leg workout. You will have better stamina, and your legs will look a little more defined. But all in all, depending on your fitness levels, it does take three to four months for any remarkable difference.