Unverified85% confidenceDecision RuleTime unknown
尺码选择看膝围而非年龄：护膝口松紧带拉伸后应能容纳一指，量取膝盖中心周长后对照品牌尺码表，同龄儿童腿围差异可达4-6cm
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Unverified儿童护膝护肘套装需按体重和身高双重确认，尺码看膝围而非年龄：膝围18-22cm对应S码（约3-6岁），膝围22-26cm对应M码（约6-10岁），偏胖儿童需上调一码86% similarUnverified儿童护具套装护膝内径需匹配膝围而非年龄，3-6岁选内径13-16cm，护膝上下双松紧带比单松紧带防滑动脱落效果好，运动中不易下滑到脚踝85% similarUnverified护具尺寸按肢体围度选而非年龄：护膝看大腿/小腿围，护肘看上臂围，围度差1cm就应换码，年龄标注仅作参考因儿童体型差异大84% similarUnverified护具尺码优先按肘围/膝围周长选而非年龄，学步期宝宝腿型偏细，同年龄段周长差异可达4cm，尺码偏大会滑脱失去防护意义84% similarUnverified尺寸按大腿/小臂围度选而非年龄：护膝上口周长应比孩子大腿最粗处小1-2cm才有固定力，选年龄段易过大导致下滑83% similar
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