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Related Experiment Videos

An insole pressure measurement system: repeatability of postural data.

J A Bauer1, J H Cauraugh, M D Tillman

  • 1University of Florida, Department of Exercise and Sport Sciences, Gainesville 32611, USA.

Foot & Ankle International
|March 30, 2000
PubMed
Summary

This study shows that in-shoe plantar pressure systems offer reliable postural sway measurements for assessing balance in healthy and clinical populations. High repeatability suggests improved confidence for clinicians in treating balance deficiencies.

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Area of Science:

  • Biomechanics
  • Human Movement Science
  • Clinical Measurement

Background:

  • Postural sway is a key indicator of balance and stability.
  • Accurate measurement of postural sway is crucial for clinical assessment and rehabilitation.
  • Existing methods for measuring postural sway have limitations in terms of repeatability and clinical applicability.

Purpose of the Study:

  • To evaluate the repeatability of an in-shoe plantar pressure measurement system for postural sway data.
  • To assess the system's reliability in both healthy individuals and patients with clinical balance deficiencies.
  • To determine the clinical utility of this technology for balance assessment.

Main Methods:

  • Participants (9 healthy, 5 clinical) underwent quiet stance trials with an in-shoe plantar pressure system.

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  • Data were collected over multiple sessions/days to assess intrasubject reliability.
  • Nine response variables were analyzed using the Kerlinger reliability procedure.

    • Main Results:

    • Direct system outputs showed high repeatability (r=0.95-0.98) across left and right feet.
    • Calculated variables from raw data demonstrated moderate to good repeatability (r=0.65-0.77).
    • The system provided highly reproducible postural sway parameters.

    Conclusions:

    • In-shoe plantar pressure measurement systems offer a reliable method for assessing postural sway.
    • The high repeatability of the system supports its use in clinical settings for balance assessment.
    • This technology can enhance clinician confidence in managing patients with balance impairments.