Everybody should do some form of strength training, just like everybody should do some form of cardiovascular exercise. What I’m going to focus on here is the type of strength training that’s most relevant for building an injury-resistant running body. And that means targeted exercises that are often different than what you would do if your strength training goal was to see how much you could bench-press or look good at the beach. Spend your limited time focusing on the muscles that most often get weak and tight from the repetitive nature of running combined with, that’s right, the insults to the running body that modern life induces.