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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
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Assessing the Accuracy of Fitness Smartwatch Data for Cardiovascular and Physical Activity Monitoring: A Validation Study in Digital Health
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Quantifying Missingness in Wearable Heart Rate Recordings.

Tim Collins1, Sandra I Woolley2, Salome Oniani3

  • 1Manchester Metropolitan University, UK.

Studies in Health Technology and Informatics
|May 27, 2021
PubMed
Summary
This summary is machine-generated.

Wearable heart rate monitors often have missing data. Experimental devices showed significant data gaps, with over 40% of recordings missing 5+ minutes of heart rate information.

Keywords:
heart ratemissingnessphotoplethysmographywearable

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Area of Science:

  • Biomedical Engineering
  • Wearable Technology
  • Physiological Monitoring

Background:

  • Wrist-worn photoplethysmography (PPG) devices are common for heart rate monitoring in clinical settings.
  • These devices face challenges with data missingness and accuracy, impacting their reliability.
  • Understanding data intermittency is crucial for effective clinical application.

Purpose of the Study:

  • To analyze the intermittency and data gaps in experimental wearable heart rate recordings.
  • To quantify the frequency and duration of missing data from PPG devices.

Main Methods:

  • Analysis of experimental wearable data recordings.
  • Evaluation of heart rate data for gaps of specific durations (5+ minutes, 15+ minutes).

Main Results:

  • Heart rate data was missing for 5 or more minutes in 41.6% of recordings.
  • Longer gaps of 15 or more minutes occurred in 3.8% of the recorded data.

Conclusions:

  • Significant data intermittency is a key issue with current wrist-worn PPG heart rate monitors.
  • The high percentage of missing data highlights the need for improved device reliability and data imputation methods in clinical use.