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Measure by Measure: Resting Heart Rate Across the 24 Hour Cycle.

2021-11-24 cardiovascular medicine Title + abstract only
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BackgroundPhotoplethysmography (PPG) sensors, typically found in wrist-worn devices, can continuously monitor heart rate (HR) in large populations in real-world settings. Resting heart rate (RHR) is an important biomarker of morbidities and mortality, but no universally accepted definition nor measurement criteria exist. In this study, we provide a working definition of RHR and describe a method for accurate measurement of this biomarker, recorded using PPG derived from wristband measurement acr...

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