Why the study?
Smartphone photoplethysmography (PPG) apps struggle with accuracy due to factors like device differences and motion artifacts, creating a need to estimate signal quality and predict bias in heart rate variability (HRV) parameters.
Design
Methodological development study
Authors
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May enable accessible smartphone HRV monitoring; leaves open prospective validation before clinical use.
The paper presents a methodological approach to improve the accuracy of heart rate variability estimation using smartphone photoplethysmography by assessing signal quality and predicting bias.
Tyapochkin et al. (2019) studied this question.
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