[KongchangAI]
Unverified78% confidenceDecision RuleTime unknown

以HRV(心率变异性)作为冥想效果指标的设备,需支持PPG光学传感器采样率≥50Hz或ECG电极测量,采样率过低会导致RMSSD等指标误差偏大,静息状态下监测更可靠

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78%
Confidence
Long-term
Relevance
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