Publication Type

Journal Article

Version

publishedVersion

Publication Date

2-2025

Abstract

Photoplethysmography (PPG) is a simple optical technique widely used in wearable devices for continuous cardiac health monitoring. However, the quality of PPG signals, particularly their morphology, is influenced by the contact pressure between the skin and the sensor. This variability in signal quality complicates complex tasks that rely on high-quality signals, such as blood pressure and heart rate variability estimation, making them less reliable or even impossible. To address this issue, we present a novel dataset (termed WF-PPG) comprising PPG signals from the wrist measured under varying contact pressures, along with high-quality PPG signals from the fingertip captured simultaneously. Data collection was conducted using a custom device setup capable of precisely adjusting the contact pressure for wrist PPG signals while also recording additional metrics such as contact pressure, electrocardiogram (ECG), blood pressure, and oxygen saturation. WF-PPG is designed to facilitate the analysis of effects of contact pressure on PPG morphology and to support the development and evaluation of advanced data-driven techniques aimed at enhancing the reliability of PPG-based health monitoring.

Keywords

Blood Pressure, Electrocardiography, Fingers, Heart Rate, Humans, Photoplethysmography, Pressure, Wearable Electronic Devices, Wrist

Discipline

Databases and Information Systems | Software Engineering

Research Areas

Software and Cyber-Physical Systems

Publication

Scientific Data

Volume

12

Issue

1

First Page

1

Last Page

11

ISSN

2052-4463

Identifier

10.1038/s41597-025-04453-7

Publisher

Nature Research

Copyright Owner and License

Authors

Additional URL

https://doi.org/10.1038/s41597-025-04453-7

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