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Related Experiment Videos

Microprocessor-based memory device for ambulatory heart rate and physical activity recording

M Makikawa1, K Imai, T Shindoi

  • 1Department of Biophysical Engineering, Faculty of Engineering Science, Osaka University, Japan.

Methods of Information in Medicine
|March 1, 1994
PubMed
Summary

A new portable digital memory device effectively monitors heart rate and physical activity during daily life. This wearable technology utilizes a microprocessor, ECG amplifier, and a durable piezo-resistive accelerometer for accurate ambulatory recording.

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Area of Science:

  • Biomedical Engineering
  • Wearable Technology
  • Physiological Monitoring

Background:

  • Ambulatory monitoring of physiological data is crucial for understanding daily health patterns.
  • Existing methods may lack portability, power efficiency, or comprehensive data capture.
  • There is a need for integrated devices that can simultaneously track heart rate and physical activity.

Purpose of the Study:

  • To design and develop a portable digital memory device for simultaneous ambulatory monitoring of heart rate and physical activity.
  • To evaluate the suitability of a piezo-resistive accelerometer for accurate physical activity detection in a wearable context.
  • To demonstrate the successful recording of physiological and activity changes in real-world settings.

Main Methods:

Related Experiment Videos

  • Utilized microprocessor techniques for device design and data processing.
  • Integrated an electrocardiogram (ECG) amplifier for heart rate acquisition.
  • Incorporated a piezo-resistive accelerometer with low power consumption, high durability, and a wide frequency response (DC to 1.2 kHz) for physical activity detection.

    • Main Results:

    • Successfully designed and implemented a portable digital memory device.
    • Demonstrated the capability to record both heart rate and physical activity changes.
    • The piezo-resistive accelerometer proved effective for ambulatory physical activity recording.

    Conclusions:

    • The developed portable digital memory device is effective for ambulatory monitoring of heart rate and physical activity.
    • The chosen accelerometer technology is well-suited for wearable applications due to its power efficiency and durability.
    • This technology enables the successful capture of physiological and activity data in daily life settings.