Runners glorify the suffering needed to keep moving in spite of pain, and the payoff is almost always increased fitness, and improvements and mental fortitude needed for running endurance.

No pain, no gain is a terrible approach when you are an injured runner. If you really want to get back to training, racing in full return to running fitness as fast as possible after a running injury you have to stop causing pain in that one injured part. Do not confuse that with stopping running-related exercise. That's the lazy doctor's way. 

In this episode, we discuss a different, better approach for runners.