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Related Experiment Video

Updated: Oct 23, 2025

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Development and Performance Evaluation of Wearable Respiratory Self-Training System Using Patch Type Magnetic Sensor.

Hyo Kyeong Kang1,2, Hojin Kim2, Chae-Seon Hong2

  • 1Department of Integrative Medicine, Yonsei University College of Medicine, Seoul, South Korea.

Frontiers in Oncology
|August 20, 2021
PubMed
Summary

A new wearable respiratory self-training system using a micro-electro-mechanical-system (MEMS) magnetic sensor was developed. Basic tests confirmed its potential for effective patient-led respiratory training.

Keywords:
micro-electro-mechanical-system (MEMS)patch-type magnetic sensorradiation therapyrespiratory monitoringrespiratory self-training

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Area of Science:

  • Biomedical Engineering
  • Wearable Technology
  • Respiratory Medicine

Background:

  • Developing effective respiratory training systems is crucial for patient recovery and management.
  • Existing systems may lack patient accessibility or require constant supervision.
  • Wearable technology offers a promising avenue for remote and self-administered patient training.

Purpose of the Study:

  • To develop and evaluate a novel, patient-usable respiratory training system utilizing a micro-electro-mechanical-system (MEMS)-based patch-type magnetic sensor.
  • To assess the system's basic functionality and clinical usability for respiratory self-training applications.

Main Methods:

  • A patch-type magnetic sensor system was designed to monitor respiration by detecting magnetic intensity changes from thoracic movements.
  • The system incorporates wireless communication, mobile applications, and a chest-mounted sensor with an external magnet.
  • Performance was evaluated using a respiratory motion phantom to test noise levels, precision across breathing patterns, and signal consistency under varying conditions.

Main Results:

  • The sensor demonstrated a low noise ratio (<0.54% of signal) and high precision, with average errors of 78.87 um for amplitude and 72 ms for period.
  • Consistent signal measurement was achieved within a sensor-magnet distance of 10-25 cm.
  • The presence or absence of material between the sensor and magnet showed minimal influence on the signal (1.89% difference).

Conclusions:

  • The developed MEMS-based patch-type wearable respiratory self-training system shows significant potential, confirmed by functional and usability tests.
  • Further clinical trials with patients are needed to validate its efficacy and usability in real-world respiratory training scenarios.
  • This system could enhance patient adherence and outcomes in respiratory rehabilitation programs.