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There is growing concern that head impacts sustained during contact sports may lead not only to concussion but also to increased susceptibility to concussion, long-term cognitive decline and chronic traumatic encephalopathy. Study findings on this matter have been contradictory. A previous study by this group suggested that collegiate contact sport athletes are vulnerable to the cognitive effects of repetitive head impacts.1
Between 2007 and 2011, 80 non-concussed members of Division 1 National Collegiate Athletic Association American football and ice hockey teams were examined preseason and postseason with white matter MR diffusion imaging and cognitive testing at Dartmouth. Female ice hockey players were included. The contact sport athletes …
Competing interests None.