Two-handed catching in children with developmental coordination disorder

Motor Control. 2006 Apr;10(2):109-24. doi: 10.1123/mcj.10.2.109.

Abstract

This study investigated the nature and extent of inter and intralimb coupling of the upper limbs in children with developmental coordination disorder (DCD) and their age-matched controls (AMC) when catching a ball two-handed. Sixteen children (8 DCD, 8 AMC) volunteered for the study; parental consent was gained for each child. Using standard video analysis and 3D kinematic analysis, all children were examined performing 30 two-handed catches. Video analysis showed that the AMC children caught more balls than the DCD children (p< .005). Analyses of the kinematic data showed DCD participants exhibit a greater degree of linkage both between and within limb than the AMC participants (p < .01), but the AMC participants demonstrate more intra individual variability in these linkages (p < .01). The data shows that both DCD and AMC children couple their limbs to exert control over redundant degrees of freedom when catching a ball two-handed. However, DCD children show little capacity to vary their motor behavior exhibiting a less adaptable movement system, which in turn affects their success at the task.

MeSH terms

  • Arm / physiopathology*
  • Biomechanical Phenomena
  • Case-Control Studies
  • Child
  • Female
  • Humans
  • Male
  • Motor Skills Disorders / physiopathology*
  • Motor Skills Disorders / psychology
  • Practice, Psychological
  • Psychomotor Performance / physiology*
  • Reaction Time / physiology