The Nature and Control of Postural Adaptations of Boys With and Without Developmental Coordination Disorder

• Autores: Eryk P. Przysucha, M. Jane Taylor, Douglas Weber
• Localización: Adapted physical activity quaterly, ISSN 0736-5829, Vol. 25, Nº. 1, 2008, págs. 1-16
• Idioma: inglés
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• Resumen

  • 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.