[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

腰垫弧度峰值高度应为4-8cm,且峰值需对准腰椎第3-4节(约在坐姿时肚脐后方水平线);高度>10cm的腰垫会把腰过度前顶,反而加重腰肌劳损

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