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Research Article  |   January 1981
Duration and Quality of the Prone Extension Position in Four-, Six-, and Eight-Year-Old Normal Children
Author Affiliations
  • Nancy P. Harris, M.S., OTR, was previously affiliated with the Meeting Street School, East Providence, Rhode Island, and currently is in private practice, working for the East Providence public school system
Article Information
Learning Disabilities / Features
Research Article   |   January 1981
Duration and Quality of the Prone Extension Position in Four-, Six-, and Eight-Year-Old Normal Children
American Journal of Occupational Therapy, January 1981, Vol. 35, 26-30. doi:10.5014/ajot.35.1.26
American Journal of Occupational Therapy, January 1981, Vol. 35, 26-30. doi:10.5014/ajot.35.1.26
Abstract

This study was designed to determine whether developmental changes occur in the duration and quality of maintaining a prone extension position. Three groups of 26 to 30 normal children ages 4, 6, and 8 years were tested on the prone extension position. Results indicated a significant difference in both duration of maintenance and quality between the performance of the four-year-olds and the other two age groups. No significant differences were found between the six- and eight-year-olds. Smooth assumption of the position and distance of thighs off the mat were found to be the most important factors in discriminating a good prone extension position from an inadequate one. The variability of performance by the four-year-olds indicates that the ability to assume and maintain a prone extension position is not a valid measurement tool for discriminating between normal children and those “at risk” for learning disabilities at this age level. The inability of children six years or older to maintain a “good” prone extension position for 30 seconds suggests a vestibular processing inefficiency.