Unverified80% confidenceTradeoffTime unknown
中频电疗(1000-4000Hz干扰电)比低频TENS穿透更深,适合深层肌肉和关节,但价格高体积大;家用便携止痛选低频TENS即可,深层理疗需求才考虑中频
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80%
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Unverified中频电疗(1000-5000Hz)穿透深度大于低频(1-1000Hz),适合深层肌肉与关节镇痛;低频对表层神经刺激明显但易产生刺痛感,膝骨关节炎深部疼痛优先选带中频或中频调制模式的机型84% similarUnverified针对深层组织(如腰椎、髋关节)选用穿透深度≥5cm的低频(1-100Hz)脉冲设备;表浅关节(手腕、膝盖)选高频小线圈即可,频率过高穿透反而变浅80% similarUnverified中频治疗仪的核心工作频率应在1000Hz-8000Hz之间,2000-5000Hz对深层肌肉和神经镇痛效果最佳,低于1000Hz实际属于低频治疗仪(TENS),对深层组织穿透力不足78% similarUnverified低周波治疗仪的输出频率覆盖1-1000Hz为佳,其中低频段(1-10Hz)用于深层肌肉放松和镇痛,中高频段(50-100Hz)用于表层肌肉激活,单一频率的低端机型治疗针对性差78% similarUnverified颈椎按摩仪选择低频脉冲(TENS)类型时,电流强度需支持15档以上调节,脉冲频率覆盖1-100Hz,否则难以适配深层肌肉与浅层放松的不同需求77% similar
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