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Research Article  |   March 1984
Standardization of the Prone Extension Postural Test on Children Ages 4 Through 8
Author Affiliations
  • Janice L. Gregory-Flock, M.A., OTR, is currently working with the Program for the Orthopedically Impaired, Roseburg, Oregon 97470
  • Elizabeth J. Yerxa, Ed.D., OTR, FAOTA, is Professor and Chairperson, Department of Occupational Therapy, University of Southern California 90242
Article Information
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Research Article   |   March 1984
Standardization of the Prone Extension Postural Test on Children Ages 4 Through 8
American Journal of Occupational Therapy, March 1984, Vol. 38, 187-194. doi:10.5014/ajot.38.3.187
American Journal of Occupational Therapy, March 1984, Vol. 38, 187-194. doi:10.5014/ajot.38.3.187
Abstract

The prone extension postural test is a measurement of vestibular functioning that has been used by occupational therapists in assessing children suspected of having vestibular system deficits. The purpose of this study was to standardize the prone extension postural test because no standardized procedures or normative data were previously available for its administration.

Reliability and validity were estimated and normative data gathered on 242 normal children ranging in age from 4 through 8 years. Performance involving duration and score on a qualitative scale was recorded. Four and 5 year olds performed similarly and statistically, and significantly differently from 6, 7, and 8 year olds. When a small group of learning-disabled children was compared to a nondisabled group, the prone extension postural test differentiated between the two groups with the exception of the 4 year olds.