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Related Experiment Videos

Measuring daily behavior using ambulatory accelerometry: the Activity Monitor.

J B Bussmann1, W L Martens, J H Tulen

  • 1Erasmus University Rotterdam, Rotterdam, The Netherlands. bussmann@revd.azr.nl

Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc
|October 10, 2001
PubMed
Summary

The Activity Monitor (AM) uses accelerometry to track human behavior and movement during daily life. This wearable sensor technology offers valid, long-term monitoring for behavioral research applications.

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Area of Science:

  • Biomedical Engineering
  • Human Movement Analysis
  • Behavioral Science

Background:

  • Advancements in sensor technology enable sophisticated ambulatory systems for monitoring human behavior.
  • The Activity Monitor (AM) is a novel instrument designed for unobtrusive, long-term measurement of daily activities.

Purpose of the Study:

  • To provide a technical description of the Activity Monitor (AM).
  • To present validity data and discuss current applications of the AM.
  • To highlight the potential of the AM in behavioral research.

Main Methods:

  • The AM utilizes ambulatory accelerometry with sensors placed on the thighs, trunk, and lower arms.
  • Data is continuously recorded using a portable digital recorder for periods exceeding 24 hours.

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  • Custom software analyzes stored signals to detect postures and motions.

    • Main Results:

    • Validity studies demonstrated high agreement between AM output and video analysis across diverse populations.
    • The system is effective for long-term (> 24-h) assessment of postures and motions during normal daily life.
    • Successful applications have been noted in rehabilitation, psychophysiology, and cardiology.

    Conclusions:

    • The Activity Monitor (AM) is a valid and reliable tool for objective, long-term behavioral monitoring.
    • Its technical capabilities and proven validity support its use in various research fields.
    • The AM presents significant potential for expanding research in human behavior analysis.