Bodychecking in Pee Wee hockey (with players aged 11-12) more than triples the risk of concussion and injury, according to a new study by researchers at the University of Calgary.
The researchers compared rates of injury between Alberta Pee Wee leagues, which allow body checking, and Quebec Leagues, which don't. The study followed 74 Alberta teams (1,108 players) and 76 Quebec teams (1,046 players) for a season, recording how and when injuries occurred during a game.