If you’re reading this, there’s a good chance you’re stuck on the sidelines right now. Maybe it’s a stress fracture, a pulled muscle, or something your doctor told you needs rest. Whatever the reason, you’re not running, and it feels awful.The frustration is real. You miss the rhythm of your feet hitting the pavement. You miss that post-run clarity. You might even miss the simple structure running gave your day. And now you’re supposed to…