When you run, your quadriceps are working hard to propel you forward, and your hamstrings are helping to swing your leg forward. Your calf muscles are helping to push off from the ground with each step, and your glutes also play a big role in running, as they help to stabilize your pelvis.
Your core muscles, which are the muscles in your abdomen and lower back, work together to keep your torso stable as you move. Finally, the muscles in your arms help you keep your balance and help you generate more power as you run.
Running is an aerobic activity, meaning that your heart and lungs get a good workout as well. Of course, it’s also highly convenient, as all you need are comfortable clothes, shoes, and an open road.