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Related Experiment Video

Updated: Jul 21, 2025

A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program

A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program

Published on: April 19, 2019

The 2023 wearable photoplethysmography roadmap.

Peter H Charlton^1,2, John Allen^3,4, Raquel Bailón^5,6

¹Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB1 8RN, United Kingdom.

Physiological Measurement

|July 26, 2023

Summary

Photoplethysmography (PPG) in wearables can monitor more than heart rate. This roadmap guides research to unlock PPG

Keywords:

blood pressure cardiovascular fitness physiological monitoring sensor signal processing smartwatch

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Area of Science:

Biomedical Engineering
Wearable Technology
Physiological Monitoring

Background:

Photoplethysmography (PPG) is integral to wearable devices like smartwatches.
Current applications include heart rate monitoring and activity tracking (sleep, exercise).
PPG technology holds untapped potential for comprehensive health and wellbeing insights.

Purpose of the Study:

To outline research and development directions for maximizing wearable photoplethysmography potential.
To guide researchers in advancing PPG technology for broader health applications.

Main Methods:

Expert-led roadmap development.
Discussion of key topics in sensor design, signal processing, and clinical applications.
Identification of future research directions.

Main Results:

Identified critical areas for PPG research and development.
Highlighted the potential for PPG to inform clinical decision-making.
Provided guidance for researchers in the field.

Conclusions:

Wearable photoplethysmography (PPG) offers significant potential beyond current uses.
Further research in sensor design, signal processing, and clinical applications is crucial.
This roadmap provides a strategic direction for realizing the full capabilities of PPG technology.