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Related Experiment Videos

The Pedar in-shoe system: repeatability and normal pressure values.

A B Putti1, G P Arnold, L Cochrane

  • 1825, Ram Tirth Nagar, BUDA Layout, Belgaum - 590 015, Karnataka, India.

Gait & Posture
|July 11, 2006
PubMed
Summary
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The Pedar system demonstrates good repeatability for in-shoe pressure measurements, establishing normal pressure values. These findings support its use in clinical practice for identifying foot pressure abnormalities.

Area of Science:

  • Biomechanics
  • Podiatry
  • Sports Medicine

Background:

  • In-shoe pressure measurement is crucial for clinical assessments and identifying foot abnormalities.
  • The Pedar system is widely used, necessitating validation of its measurement consistency.
  • Establishing normal pressure values is essential for accurate clinical interpretation.

Purpose of the Study:

  • To evaluate the repeatability of the Pedar system for in-shoe pressure measurement.
  • To determine reference pressure values in a cohort of normal subjects.
  • To assess the system's reliability for clinical applications.

Main Methods:

  • Fifty-three healthy subjects (17 female, 36 male) participated.
  • Measurements were taken twice using standardized running shoes with a 12-day interval.

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  • Key parameters analyzed included peak pressure, contact area, contact time, and pressure-time integral.

    • Main Results:

    • The Pedar system exhibited high repeatability, with a coefficient of repeatability (CR) not exceeding 15.3% for all parameters.
    • Highest peak pressures were recorded under the great toe and heel.
    • Contact area was maximal under the heel, and contact time was prolonged for metatarsals and the hallux.

    Conclusions:

    • The Pedar system is a repeatable tool for in-shoe pressure measurement.
    • Identified normal pressure values provide a valuable reference range for clinical use.
    • This study validates the Pedar system for consistent and reliable clinical assessments.