Study: Rule Change Reduced Concussions 57 Percent

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A study published in the American Journal of Sports Medicine found that a rule limiting the amount of full-contact practice led to a 57 percent decrease in the number of concussions among high school football players in Wisconsin.

According to TV station WKOW, the Wisconsin Interscholastic Athletic Association in 2014 imposed a rule which prohibited teams from engaging in full-contact practices in the first week of the preseason, and imposed limits on full-contact practices in subsequent weeks. 

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