The biggest risk is keeping kids indoors : TreeHugger
Great article with a link to current canadian research. Access the full article from the hyperlink above.
Activity statement can be accessed through article.
: A diverse, cross-sectorial group of partners, stakeholders and researchers, collaborated to develop an evidence-informed Position Statement on active outdoor play for children aged 3–12 years. The Position Statement was created in response to practitioner, academic, legal, insurance and public debate, dialogue and disagreement on the relative benefits and harms of active (including risky) outdoor play.