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Related Experiment Video

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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
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Smartphone-Based Cardiac Rehabilitation Program: Feasibility Study.

Heewon Chung1, Hoon Ko1, Tharoeun Thap1

  • 1Department of Biomedical Engineering, Wonkwang University College of Medicine, Iksan, 54538, Republic of Korea.

Plos One
|August 24, 2016
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Summary

This study presents a smartphone-only cardiac rehabilitation program (CRP) that guides exercise intensity using estimated heart rate (HR) from fingertip video. The app ensures HR stays within the target heart rate zone (THZ) for effective recovery.

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Digital Health

Background:

  • Cardiac rehabilitation programs (CRPs) are crucial for post-cardiac event recovery.
  • Traditional CRPs often require external monitoring devices, limiting accessibility.
  • Smartphone technology offers a potential platform for remote and accessible health monitoring.

Purpose of the Study:

  • To develop and evaluate a smartphone-only cardiac rehabilitation program (CRP).
  • To enable automatic exercise intensity guidance by comparing estimated heart rate (HR) with the target heart rate zone (THZ).
  • To assess the accuracy of HR estimation from fingertip video and manage motion artifacts.

Main Methods:

  • Developed a smartphone application for CRP with pre-exercise, exercise guidance, and post-exercise phases.
  • Estimated HR using video analysis of a fingertip via the smartphone camera.
  • Implemented HR comparison with THZ for real-time exercise intensity adjustment.
  • Utilized turning point ratio and kurtosis to detect and manage motion artifacts during HR estimation.

Main Results:

  • The smartphone-based CRP accurately estimated HR with a mean absolute error of 6.16 bpm and root mean squared error of 4.30 bpm.
  • Motion artifacts were effectively detected using a combination of turning point ratio and kurtosis.
  • The app successfully guided exercise intensity to maintain HR within the THZ.

Conclusions:

  • A smartphone-only CRP is feasible and can effectively guide cardiac rehabilitation exercise intensity.
  • Fingertip video analysis provides a viable method for HR estimation in a CRP setting.
  • The developed system demonstrates potential for improving accessibility and adherence to cardiac rehabilitation.