Academic journal article Research Quarterly for Exercise and Sport

RC Grant Findings: Dual Motor Task Coordination in Children with and without Learning Disabilities: Effects of Short-Term Training

Academic journal article Research Quarterly for Exercise and Sport

RC Grant Findings: Dual Motor Task Coordination in Children with and without Learning Disabilities: Effects of Short-Term Training

Article excerpt

In 1999-2000, 2.8 million public school students obtained services for learning disabilities, with 70-80% having reading difficulties associated with dyslexia (U.S. Department of Education, 2002). Although rarely the focus of research or remediation, motor coordination deficits evident in dyslexic individuals may affect their performance in physical education, sport and activities of daily living (Nicolson & Fawcett, 1994). This study examined the intra- and interlimb coordination characteristics of dyslexic and typically developing children between the ages of 7-12 years during a dual motor task (DMT) performance to determine the effects of short-term practice on dual motor task performance when an auditory pacing signal (metronome) was provided. Fifty-five children participated (22 typically developing, 33 dyslexic) clapped while walking with no cues or instructions for three trials before completing four blocks of four trials where they clapped and walk to a metronome signal set at their preferred walking frequency. Finally, they performed the dual motor task again with no metronome signal. Interlimb measures were mean relative phase (MRP) between limb girdles, and standard deviation of MRP (VRP). Intralimb measures were period of clap and of step (PS, PC), and standard deviation of clap and step period (SDS, SDC). These measures were compared using a multivariate analysis of variance with age as the covariate. …

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