American Journal of Audiology Vol.18 108-113 December 2009. doi:10.1044/1059-0889(2009/09-0012)
© American Speech-Language-Hearing Association
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrowCustom Print
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow My Folders
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Honaker, J. A.
Right arrow Articles by Shepard, N. T.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Honaker, J. A.
Right arrow Articles by Shepard, N. T.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Delicious   Add to Digg   Add to Facebook   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Modified Head Shake Computerized Dynamic Posturography

Julie A. Honaker

University of Nebraska–Lincoln

Connie M. Converse

U.S. Air Force Audiology, Lackland Air Force Base, San Antonio, TX

Neil T. Shepard

Mayo Clinic, Rochester, MN

Contact author: Julie Honaker, 272 Barkley Center, University of Nebraska–Lincoln, Lincoln, NE 68583-0738. E-mail: jhonaker2{at}unl.edu.

Purpose: Recent research on head shake posturography has demonstrated a modest increase in sensitivity to identifying peripheral vestibular system asymmetry when horizontal head movements were added to portions of the standard Sensory Organization Test (SOT) battery. However, limitations with respect to the head shake protocol were outlined, and usable data for assessing performance could not be established. The purpose of this study was to test a change in protocol for use of head shake SOT to address the noted limitations.

Method: Forty participants ranging in age from 20 to 79 years with no history of dizziness completed Conditions 2 and 5 of the SOT portion of computerized dynamic posturography on EquiTest equipment, while maintaining head still as well as 4 horizontal head movement velocity tasks.

Results: Slope of a linear regression fit to 6 performance points was used to characterize each participant. Spearman's ranked correlation (r) indicated a significant relationship between the slope of the line representing a decline in performance with age (r = –.52, p = .0006).

Conclusions: The head shake modification showed a trend in increasing the separation of normal individuals across age and eliminated the limitations addressed in earlier research. Future research will investigate the head shake modification for identifying vestibular peripheral system asymmetries.

Key Words: head shake, Sensory Organization Test, computerized dynamic posturography, dizziness


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Delicious Delicious   Add to Digg Digg   Add to Facebook Facebook   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?


This article has been cited by other articles:


Home page
 ptjournalHome page
M. Y. C. Pang, F. M. Lam, G. H. Wong, I. H. Au, and D. L. Chow
Balance Performance in Head-Shake Computerized Dynamic Posturography: Aging Effects and Test-Retest Reliability
Physical Therapy, February 1, 2011; 91(2): 246 - 253.
[Abstract] [Full Text] [PDF]