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Updated: May 4, 2026

Computerized Dynamic Posturography for Postural Control Assessment in Patients with Intermittent Claudication
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Computerized dynamic posturography: the influence of platform stability on postural control.

Hans-Georg Palm1, Patricia Lang, Johannes Strobel

  • 1From the Trauma Research Group, Department of Orthopedics and Trauma Surgery, German Armed Forces Hospital of Ulm, Ulm, Germany.

American Journal of Physical Medicine & Rehabilitation
|December 21, 2013
PubMed
Summary
This summary is machine-generated.

Postural control decreases linearly as platform stability lessens. This study quantifies the mathematical correlation between platform stability settings and postural control, finding a significant linear relationship.

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Area of Science:

  • Biomechanics
  • Human Motor Control
  • Kinesiology

Background:

  • Postural stability is crucial for daily activities.
  • Posturography systems offer adjustable platform stability.
  • The mathematical relationship between platform stability and postural control remains unclear.

Purpose of the Study:

  • To mathematically correlate platform stability settings with postural control.
  • To investigate the influence of varying stability levels on postural control.
  • To determine if sex influences the correlation between platform stability and postural control.

Main Methods:

  • Twenty subjects participated in the study.
  • Tests were conducted using the Biodex Stability System across 13 stability levels.
  • Data analyzed included overall, medial-lateral, and anterior-posterior stability indices using ANOVA and linear regression.

Main Results:

  • A linear decrease in postural control was observed as platform stability decreased.
  • Overall stability index scores increased with reduced platform stability.
  • Regression analysis revealed a slope of 0.17 for men and 0.10 for women, indicating a stronger influence in men.

Conclusions:

  • A significant linear correlation exists between platform stability and postural control.
  • The impact of reduced platform stability on postural control is nearly double in men compared to women.
  • Findings suggest sex-specific differences in the response to altered postural support.