[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

HRV测量采样率是精度关键:采用光电PPG的腕表/指夹式采样误差高,训练时最好选ECG胸带或耳夹式(采样率≥250Hz)以获得逐搏RR间期,PPG方案在体动时数据不可靠

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Long-term
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