I’m sure most of us who have been around for a while have heard both sides of the story. First, we were told pre-run stretching was an important component of injury prevention. Then we were told that stretching before working out was useless and could, in fact, hamper your performance. Well, this study tested that second theory. The result? Whether static or dynamic, stretching seemed to make no difference in performance. This seems to confirm what we’ve seen in other recent studies.