[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

腰靠支撑点应对准腰椎第3-4节(约束腰带上方2-3cm处),即坐姿下腰部最凹陷处,凸起高度8-12cm为宜;过低支撑无效,过高会顶背导致前倾

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