It is with great interest that I read the article entitled “Does changing the configuration of a motor racing circuit make it safer?” by Leonard et al.¹ Although I am not a motor sport enthusiast, as a sports medicine specialist I very much enjoyed reading this study, which focused on the effects of a simple preventive measure applied to sport. This study poses a clear question which allows clear interpretation of a cause-effect relation: does a change in the shape of a race track, intended to slow drivers at two of the fastest areas of the track, result in a reduction of the incidence of injuries?

The authors drew their data …