Unverified85% confidenceDecision RuleTime unknown

健身气功太极剑/太极扇选购时，剑长应约等于身高的0.4倍（成人常用81-93cm对应身高155-185cm），持剑手臂自然下垂时剑尖不触地为合适

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健身气功器具category

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Unverified选购时根据身高匹配剑长：一般建议垂臂持剑时剑尖不低于耳垂高度，身高165cm以下选短款，170cm以上选长款89% similar Unverified太极剑选购看剑身长度：立姿手臂下垂时剑尖应至耳垂或齐眉，简易算法为身高(cm)÷2再减去5cm即为合适剑长（含剑柄），老年人偏短5cm更利控制86% similar

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