[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

头盔重量对幼儿颈椎负担大:3岁以下建议选≤250g的头盔,3-6岁≤300g;过重头盔会导致孩子低头、抗拒佩戴,长期影响佩戴依从性

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85%
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Long-term
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