[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

以压力管理/情绪调节为目的选设备,优先看HRV(心率变异性)监测精度,要求采样率≥250Hz的PPG或ECG传感器,低采样率设备HRV误差可达20%以上,无法用于呼吸训练反馈

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85%
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