Large U.S. Army study: Foot strike doesn't affect injury rate
from Runner's World
Important running injury studies are notoriously difficult to conduct. The basic problem is lack of subjects. Most researchers are lucky if they can include a couple dozen runners in their projects. And in general, the smaller the number of subjects, the less meaningful the results. The U.S. Army doesn't have this problem. It not only has multitudes of subjects; it also has powerful motivation to keep those subjects healthy. An injured soldier is a costly, inefficient one.
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