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Related Experiment Video

Updated: Jul 18, 2026

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
07:24

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

Published on: April 21, 2017

A new accelerometric method to assess the daily walking practice.

Y Schutz1, S Weinsier, P Terrier

  • 1Institute of Physiology, University of Lausanne, Switzerland. yves.schutz@iphysiol.unil.ch

International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity
|January 16, 2002
PubMed
Summary

This study presents a new accelerometry method to profile daily walking speed and duration in women. The method accurately estimates walking patterns, intensity, and duration under free-living conditions.

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Area of Science:

  • Biomedical Engineering
  • Physical Activity Measurement
  • Wearable Technology

Background:

  • Assessing daily physical activity, particularly walking, is crucial for health.
  • Free-living activity monitoring presents challenges in accuracy and individual variability.
  • Existing methods may not fully capture the nuances of walking patterns (speed, duration).

Purpose of the Study:

  • To develop and validate a novel accelerometry-based method for profiling walking activity in women.
  • To quantify the duration, intensity (speed), and patterns of walking over 24 hours under free-living conditions.
  • To account for inter-individual variations in acceleration and walking speed.

Main Methods:

  • A new accelerometry method was designed, incorporating an individual calibration process to address inter-individual variability.

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Last Updated: Jul 18, 2026

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers
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Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
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Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption

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  • Experiments were conducted to correlate accelerometer output with walking speed and assess prediction accuracy.
  • The method was tested over 24-hour free-living periods in 28 women.

    • Main Results:

    • Accelerometer output strongly correlated with walking speed during both treadmill and unconstrained walks (r=0.95 and r=0.86, respectively).
    • Individual calibration enabled accurate prediction of walking speed on an urban circuit (r=0.93).
    • Women averaged 79.9 min/day in displacement activities, with walking comprising discontinuous and continuous bouts at an average speed of 5.0 km/h.

    Conclusions:

    • An accelerometer measuring anteroposterior acceleration can effectively estimate walking speed.
    • The developed method provides a comprehensive profile of daily walking activity, including patterns, intensity, and duration.
    • This approach offers a reliable tool for assessing free-living walking behavior in women.