Unverified80% confidenceTradeoffTime unknown
脉冲力度可多档调节，晕动症严重时可调高档位，但过高档位会有明显刺麻感，需按耐受度逐步调整
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80%
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Long-term
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Unverified强度调节档位应≥15档或采用连续无级调节（1mA以内步进），手部神经密集敏感，低档位跨度过大（如仅5档）会出现‘调低无感、调高刺痛’的两难79% similarUnverified牵引弧度越深理疗强度越大但耐受门槛越高，颈椎不适初期或老年人硬上深弧度会引发头晕、恶心和肌肉代偿性紧张，应从浅弧度逐步适应79% similarUnverified刺激强度越高体感越'有效'但长期高强度EMS易造成神经疲劳适应，反而效果递减，建议中低档长期使用而非追求高强度78% similarUnverified脉冲强度因人而异，皮肤敏感或耐受度低者对高挡位刺激感明显，建议从低挡逐步适应77% similarUnverified输出强度档位越多越好，建议≥15档，低档位间隔要细腻，因为不同人对电流耐受度差异极大，档位跳跃大会导致从无感直接跳到刺痛无法找到舒适强度77% similar
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