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.
Counting Concussions
December 9, 2016
Member high schools of the Michigan High School Athletic Association are in the second year of required reporting of concussions that occur during practices and contests in all levels of all sports served by the MHSAA. In year one there were 4,452 confirmed concussions reported. Less than two percent of almost 300,000 participants sustained a concussion, about half of which caused the student to be withheld from activity for between five and 15 days.
Not surprisingly, approximately half of the confirmed concussions were reported by Class A schools, which typically sponsor more sports and have larger squads than smaller schools. Class B schools provided almost 30 percent of the reports; Class C schools nearly 15 percent; and Class D schools less than six percent.
As we transition from fall to winter season, we can begin to make comparisons between years one and two of the mandated reporting. At this point, schools are reporting 1.6 percent fewer concussions this year than last.
This is surprising, because sideline personnel of member high schools have become more alert to the signs and symptoms of concussions. We anticipated that this would lead to more concussions being reported.
It is possible that these early stats are a sign of real progress in reducing head injuries in school sports. And, grabbing our attention most from the early reports is that 11-player football is reporting 3.9 percent fewer concussions as of Nov. 30, 2016 compared to the same week in 2015; and boys soccer is reporting 10.9 percent fewer than on the same date last year.