Running injury rates typically correlate to the risks taken by the runner. Runners are always trying to add more speed training and/or mileage. The more added,

Running injury rates typically correlate to the risks taken by the runner. Runners are always trying to add more speed training and/or mileage. The more added, the higher risk of injury. It is always a delicate game of deciding how much to push without going too far. A "safer" shoe will simply cause the runner to increase intensity of training or try to ramp up mileage more, negating any safely improvements from the better shoe. In the same way a safer car will cause the driver to speed more or drive more aggressively evening out the risk. See Risk compensation. https://en.wikipedia.org/wiki/Risk_compensation https://en.wikipedia.org/wiki/Risk_compensation