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Experimental Methods to Study Human Postural Control
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Postural Control in Adults With Age-Related Hearing Loss.

Elizabeth Tobener1, Steven Doettl1, Patrick Plyler1

  • 1Department of Audiology and Speech Pathology, University of Tennessee Health Science Center, Knoxville.

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Summary
This summary is machine-generated.

Age-related hearing loss (ARHL) is linked to poorer postural control, especially with head movements. Single leg stance with lateral head tilt effectively identifies reduced balance in older adults with hearing impairment.

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Area of Science:

  • Gerontology
  • Audiology
  • Neuroscience

Background:

  • Age-related hearing loss (ARHL) affects a significant portion of the adult population.
  • Vestibular system degradation is common in individuals with ARHL.
  • Postural control is crucial for maintaining balance and preventing falls in older adults.

Purpose of the Study:

  • To evaluate postural control in adults with ARHL.
  • To investigate the impact of a 30° lateral head tilt on postural control measures.
  • To identify sensitive measures for detecting balance deficits in ARHL.

Main Methods:

  • Recruited adults aged 50-70 with normal hearing (n=10) and ARHL (n=32).
  • Assessed hearing (pure-tone audiometry), vestibular function (vHIT, cVEMPs, oVEMPs), and postural control (SLS, RF, TW).
  • Utilized Pearson correlation and linear regression to analyze relationships.

Main Results:

  • ARHL correlated significantly with reduced cVEMP and oVEMP amplitudes.
  • Single leg stance (SLS) with lateral head tilt showed decreased performance as ARHL increased.
  • No significant correlations found for vHIT gain, SLS without head tilt, TW, or RF.

Conclusions:

  • Increased ARHL is associated with decreased postural control, particularly with lateral head tilt.
  • Vestibular function is degraded in the ARHL population.
  • SLS with lateral head tilt is a sensitive measure for detecting reduced postural control in ARHL and may aid in fall risk assessment.