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Eryk P. Przysucha, M. Jane Taylor, and Douglas Weber

This study compared the nature of postural adaptations and control tendencies, between 7 (n = 9) and 11-year-old boys (n = 10) with Developmental Coordination Disorder (DCD) and age-matched, younger (n = 10) and older (n = 9) peers in a leaning task. Examination of anterior-posterior, medio-lateral, maximum and mean area of sway, and path length revealed one significant interaction as older, unaffected boys swayed more than all other groups (p < .01). As a group, boys with DCD displayed smaller anterior-posterior (p < .01) and area of sway (p < .01). Analysis of relative time spent in the corrective phase (p < .002) revealed that boys with DCD spent 54% under feedback control while boys without DCD spent 78%. This was attributed to reduced proprioceptive sensitivity, as confirmed by significant differences between the groups (p < .009) in spectral analysis of peak frequency of sway.

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Joe Godek

Edited by Marjorie J. Albohm, Pete Carlon, Dave Colt, Neil Curtis, Earlene Durrant, Nathanial E.P. Ehrlich, Robert C. Finke, Kevin M. Guskiewicz, Kristinn I. Heinricks, Douglas M. Kleiner, Rob Rehberg, Kent Scriber, and Jerry Weber