Conditioned Patellar Tendon Reflex Function in Children with and Without Developmental Coordination Disorders

in Adapted Physical Activity Quarterly
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A conditioned patellar tendon reflex paradigm was used to study the contributions of crossed spinal and supraspinal inputs to the output of the alpha motoneuron pool in children with and without developmental coordination disorders. The basic patellar tendon reflex response was exaggerated in children with developmental coordination disorders. Crossed spinal and supraspinal influences on the excitability of the alpha motoneuron pool were similar in both groups of children. However, there was evidence of exaggerated crossed spinal and supraspinal inputs onto the alpha motoneuron pool in individual children with developmental coordination disorder.

The authors are with the Department of Exercise Science, University of South Carolina School of Public Health, Columbia, SC 29208.

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