As a chiropractor, I always cringe when I watch grown men getting bodychecked in hockey. I think about how all of these little injuries accumulate and can result in a lot of damage to soft tissues over time. I ask you to think about an 11 or 12-year-old player being bodychecked. Their bodies are not fully developed and just cannot easily sustain that type of repeated trauma. Thank goodness somebody has looked into this on a scientific level, this information is invaluable for those who establish hockey guidelines for children. See the link below to view the CBC’s take on this study:

https://www.cbc.ca/health/story/2010/06/08/body-check-hockey-pee-wee.html