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Wearable Belt With Built-In Textile Electrodes for Cardio-Respiratory Monitoring.

Emanuele Piuzzi1, Stefano Pisa1, Erika Pittella2

  • 1Department of Information Engineering, Electronics and Telecommunications (DIET), Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy.

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Summary

This study introduces a low-cost, wearable sensor belt for continuous, simultaneous monitoring of heart rate and respiration. The innovative system offers a practical solution for accessible, everyday health and fitness tracking.

Keywords:
ECG recordingbio-impedance measurementbiomedical measurementcardio–respiratory monitoringpatient monitoringplethysmographywearable sensors

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Area of Science:

  • Biomedical Engineering
  • Wearable Technology
  • Physiological Monitoring

Background:

  • Continuous vital signs monitoring is crucial for home healthcare and sports tracking.
  • Existing solutions are often complex, costly, or not easily accessible for widespread use.
  • There is a need for simple, affordable, and wearable devices for unobtrusive physiological monitoring.

Purpose of the Study:

  • To develop and validate a wearable, wireless sensor belt for simultaneous acquisition of respiratory and cardiac signals.
  • To assess the performance of the developed system compared to traditional medical devices.
  • To create a low-cost, user-friendly solution for continuous cardio-respiratory monitoring.

Main Methods:

  • A wearable sensor belt utilizing a 50-kHz current injection into the thorax.
  • Acquisition of trans-thoracic voltage via textile electrodes to capture electrocardiogram (ECG) and respiratory impedance signals.
  • Signal separation using filtering techniques to extract distinct cardio-respiratory data.

Main Results:

  • Simultaneous acquisition of ECG and respiratory signals from a single channel.
  • Effective separation of cardio-respiratory signals through filtering.
  • Performance comparable to standard spirometry and two-lead ECG.
  • System realization cost under €100 with wireless capabilities and extended battery life.

Conclusions:

  • The proposed sensor belt offers a cost-effective and practical solution for unobtrusive, continuous cardio-respiratory monitoring.
  • The system is suitable for everyday use in both clinical and sports applications.
  • Further development including motion artifact removal will enhance its utility for long-term monitoring.