Unverified85% confidenceDecision RuleTime unknown
深层肌肉放松（如足底、臀大肌）选直径6-8cm硬质EVA或PVC实心球；浅层敏感部位（如颈部、小腿）选直径10cm以上、带凸点或软胶材质，避免压迫神经
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85%
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Long-term
Relevance
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