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Age-dependent changes in dynamic standing-balance ability evaluated quantitatively using a stabilometer.

Yasuhiro Suzuki1,2, Shigeru Yatoh1, Hiroaki Suzuki1

  • 1Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba: 1-1-1 Tennodai, Tsukuba, Ibaraki 305-0031, Japan.

Journal of Physical Therapy Science
|February 8, 2018
PubMed
Summary

The index of postural stability (IPS) quantifies dynamic balance. This measure declines with age, particularly after 60, and can assess balance without visual or sensory compensation.

Keywords:
Dynamic balance abilityIndex of postural stability (IPS)Stabilometer

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Area of Science:

  • Biomechanics
  • Gerontology
  • Neurology

Background:

  • Postural stability is crucial for dynamic balance.
  • Quantitative measures of balance are needed to track age-related changes.
  • The index of postural stability (IPS) is a potential indicator.

Purpose of the Study:

  • To investigate the efficacy of a stabilometer-based index of postural stability (IPS) as a measure of dynamic balance.
  • To examine the relationship between IPS and age.
  • To evaluate IPS under different sensory conditions.

Main Methods:

  • Calculated IPS in 583 healthy adults using a stabilometer.
  • Assessed balance under two conditions: open eyes/hard surface (OE/HS) and closed eyes/soft surface (CE/SS).
  • Analyzed the relationship between IPS and age, considering gender differences.

Main Results:

  • A negative correlation was found between IPS and age.
  • IPS (OE/HS) decreased in middle age and more rapidly in older adults.
  • IPS (CE/SS) showed a linear decrease with age.
  • No significant gender differences were observed in either IPS measure.

Conclusions:

  • IPS provides a quantitative assessment of balance ability without a ceiling effect.
  • IPS (OE/HS) reflects comprehensive balance.
  • IPS (CE/SS) assesses balance independent of visual and plantar sensory compensation.