Players also have a role, the trainer stressed.
"We tell them for sure not to customize the helmet in any way," Norris said. "A lot of them want to cut the forehead pads or cut the cheek pads to make them thinner. We definitely discourage that."
And, she added, "they should also have their coaches check their helmets at least every week or two weeks, just to make sure everything's good."
The data and conclusions of research presented at medical meetings should be viewed as preliminary until published in a peer-reviewed journal.
Visit the U.S. Centers for Disease Control and Prevention to learn about concussion in sports.
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