Does running build muscle? | Tom’s Guide

It gets you out of breath and is a great workout for your heart and lungs, but does running build muscle? It turns out running is actually a surprisingly comprehensive exercise. 

While it primarily targets big muscle groups in your legs and lower body, it can also work your back, core, and arm muscles too. But if you really want to build your muscles rather than just strengthen them, you’ll need to add weights training to your workout.

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