[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

脚踏面宽度应≥8cm、长度≥15cm,过窄脚踏(<6cm)会导致脚掌无法完全踩稳,孩子需持续绷脚发力容易疲劳失衡

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85%
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Long-term
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