Bilateral Motor Coordination in Adolescents with and Without Learning Disabilites

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Abstract
The purpose of this study was to determine whether adolescent boys with learning disabilities demonstrate impairment in bilateral motor coordination when compared to normal boys. Forty-four boys with learning disabilities and 24 normal boys, 16 to 19 years old, were tested on a series of items requiring homolateral patterns of movement and a series of items requiring cross-diagonal patterns of movement. The boys with learning disabilities performed significantly more poorly than normal boys on both types of items. Both groups of boys performed significantly more poorly on crosss-diagonal items than homolateral items. Boys with learning disabilities had a significantly greater difference in scores betweeen homolateral and cross-diagonal items than normal boys. Results suggest that motor dysfunction in boys with learning disabilities persists into the late teenage years, and cross-diagonal patterns of movement appear to require greater degrees of skill than homolateral patterns of movement.

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