[thaumasiotes]

> one reason the players are resistant to the idea of a helmet is that they fear that reduced visibility would lead to increased injury.

They are definitely right about that. The point of the helmet is to make injuries less serious, not less frequent.

[aidenn0]

But a 37% reduction in concussion rate (as implied by the Florida data) could make increased frequency of other injury worth it; if the effect on concussions were negligible, then wearing helmets would be a net-negative.

[JoshGG]

No. They do both, and that is directly shown in this study and in other studies. They eliminate many types of injury and make others less frequent.