I asked him about some specific injuries. Usually the pain is immediate, though it may only last a few seconds in a minor twist. This makes a strain much easier to spot, though not necessarily easier to avoid, than stress. You may be able to continue the run in comfort, but the pain will return at the end of the run. Use the first aid actions at the end of the chapter.
Many runners fail to recognize the twist itself is the result of overtraining.
When running with fresh and flexible muscles, the awkward foot placement which sends you off balance can often be corrected over the next few strides. That said, old running shoes are a bigger contributor to injuries than overtraining. When injured, you should ease off or rest for a few days to allow the tear and associated muscle strain to heal. A two or three day calf strain can result in a hamstring injury lasting weeks.