You’re out running on your favorite trail, on a warm day with the sun shining, birds chirping, a light breeze, and the smell of summer in the air. So far, everything about your run is perfect. But then, you feel an unusual burn in your heel. Or a discomforting pull of your hamstrings just behind your knee. You might even misstep and roll an ankle. Running, like any other sport, has its fair share of injuries associated with it.