Head Trauma and Learning
November 23, 2012
Researchers at my alma mater have joined their voices to the growing chorus of concerns about the effects of repeated blows to the head.
A study of the cognitive effects of head impacts on members of Dartmouth College football, hockey, track, crew and Nordic ski teams compared before and after season results on learning and memory skills. Participating athletes also came from Brown and Virginia Tech.
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22 percent of athletes in contact sports had lower results on learning and memory skills tests after their season.
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Only 4 percent of athletes in non-contact sports posted lower test results.
The researchers caution that it is unknown at this point how long these negative effects may last, but they also note there is some correlation between test results and how hard the athletes were hitting heads.
This adds to the mounting evidence that rules writers, program sponsors, coaches and officials must look for and implement a variety of measures to reduce the frequency and severity of head impacts in both practice and competition in all sports.
A Hot Topic
July 10, 2012
It is a terrible irony that Georgia saw two of its high school football players die late last summer when it’s the Georgia High School Association that was providing us with the best information we’ve ever had about the risks of heat illness and death.
The deaths occurred in the third year of a thorough three-year study in Georgia that is reinforcing common sense. The study is confirming who is most at risk and when they’re most at risk.
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Who is most at risk? Linemen more than other players; underclassmen more than older players; those who have had the flu or similar sickness more than others.
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When are they most at risk? During the season’s first week more than the second. During the second practice of a double session day more than the first. During the second half of the second practice more than the first half, and, early in the morning when humidity is often highest.
It all makes perfect sense: the chubby 9th or 10th grader during the second half of the second practice during the first week of the season. And because it’s statistically predictable, heat illness is almost entirely preventable.
There is some danger here in over-generalizing and over-simplifying, but awareness of these tendencies will help coaches to schedule and administrators to legislate around high-risk scenarios. We expect both will be happening in Michigan.