Unverified85% confidenceDecision RuleTime unknown
康复垫厚度需≥8cm且触底测试（用手压到底感受硬底）无硬底感，厚度＜5cm的记忆棉在骨突部位（髋、肩、肘）无法提供足够缓冲
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85%
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Unverified长时间盘腿静坐选厚度5-8cm的高密度海绵或乳胶填充，膝盖和脚踝压力才不会导致麻木；瑜伽拉伸类用途只需1-1.5cm薄垫以保证站姿稳定79% similarUnverified腰椎间盘突出/腰肌劳损人群选记忆棉密度≥50D的护腰抱枕，回弹时间2-3秒可持续填补腰椎生理曲线空隙；低于40D的普通海绵1个月内塌陷失去支撑79% similarUnverified记忆棉腰靠支撑随体温软化会逐渐塌陷，需要强支撑（体重70kg以上或明显腰痛）应选高密度记忆棉（密度≥50D）或加入乳胶/硬质塑料背板的结构款78% similarUnverified记忆棉密度决定支撑力：50D以下偏软支撑不足，50-70D适合大多数人，70D以上偏硬适合体型壮硕或颈椎需强支撑者；密度过高会导致坐姿时颈部酸胀76% similarUnverified厚度仅4.2mm，缓冲性有限，膝盖或骨骼突出部位跪压时可能不够舒适，需要额外搭配毛巾或薄垫辅助76% similar
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