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Nature of spatial coupling in children with and without developmental coordination disorder in ball catching

机译：接球时有和没有发育协调障碍的儿童的空间耦合性质

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The nature of intra- and interlimb (bimanual) coordination was examined in ten boys with (M = 10.5 years, SD = 1.0) and without DCD (M = 10.8 years, SD =.9) in a two-handed catching task. Children with developmental coordination disorder (DCD) caught significantly fewer balls (M_(DCD) = 56%, SD = 17.6 vs. M_(noDCD) = 93%, SD = 7.5), and both groups solved the "degrees of freedom problem" differently at intralimb level of coordination. Typically developing children coupled and decoupled the respective spatial relations, whereas the majority of children with DCD segmented their actions. At interlimb level, both groups exhibited a comparable degree of spatial symmetry. However, individual profiles also showed that children with varying degrees of movement issues exhibited movement patterns that were qualitatively and functionally diverse. Overall, in the context of previous research on interlimb coordination it appears that spatial, in addition to temporal organization, may be jeopardized in at least some children with DCD.
机译：在双手抓捕任务中，对十名有（M = 10.5岁，SD = 1.0）和没有DCD（M = 10.8岁，SD = .9）的男孩检查了肢内和肢（双）协调的性质。患有发展性协调障碍（DCD）的儿童接球明显减少（M_（DCD）= 56％，SD = 17.6，而M_（noDCD）= 93％，SD = 7.5），并且两组都解决了“自由度问题”在下肢协调方面有所不同。通常，发育中的孩子会耦合和解耦各自的空间关系，而大多数患有DCD的孩子会分割他们的动作。在中间水平，两组均表现出相当程度的空间对称性。但是，个人资料也表明，运动问题程度不同的儿童表现出定性和功能多样的运动模式。总体而言，在先前关于跨肢协调的研究的背景下，似乎在空间组织上除了时间安排外，至少在某些DCD儿童中可能受到危害。

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