Unverified82% confidenceDecision RuleTime unknown
尺码优先量围度而非按S/M/L直接买：护膝量髌骨上方15cm处大腿围，护踝量脚踝最细处，围度落在两档之间选小不选大，因为压缩护具需要略紧才有支撑效果
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82%
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Long-term
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Unverified选购时务必量围度而非看S/M/L：膝套量髌骨中心上下15cm处腿围，踝套量踝骨最细处，围度差1-2cm就应换尺码，压缩产品尺码偏大等于失去压缩功能94% similarUnverified选套筒式护具务必按肢体围度而非鞋码/身高选，膝护具量髌骨上15cm大腿围，护踝量脚踝最细处，误差超2cm就失去压缩支撑意义85% similarUnverified选购前测量脚踝最细处围度（内外踝骨上方约3cm），多数品牌以此尺寸分S/M/L，围度处于两码交界时选小一码保证压缩效果84% similarUnverified尺码应以腰围而非常规S/M/L为准，塑身马甲拉伸后有效收束值通常比标注小2-4cm；选码时以未拉伸状态腰围减去期望收束量为参考83% similarUnverified护具尺寸不能只看S/M/L，需按品牌尺码表实测周长：膝护具量髌骨中心上方15cm大腿围，踝护具量脚踝最细处，误差超过±2cm会导致支撑失效或血液循环受阻82% similar
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