Here’s a look at how strong calf muscles can give your brain a leg up — and how to beef up these beauties at home.

The gastrocnemius muscle is one of the main muscles of the lower leg. It gives the calf of the leg its rounded, bulging appearance. The gastrocnemius is on the posterior, or back, side of the leg.

If you want size and strength in your lower legs, you need to put in the right type of work. Here's what you need to know.