Coupling of the reach and grasp phase during catching in children with developmental coordination disorder
Coupling of the reach and grasp phase during catching in children with developmental coordination disorder
复制标题
DOI：
10.3200/jmbr.40.4.315-324
复制
发表时间：
2008-07-01
影响因子：
1.4
通讯作者：
Utley, Andrea
中科院分区：
文献类型：
--
作者：
Astill, Sarah;Utley, Andrea
对10名7~10岁发育性协调障碍(DCD)儿童及其典型发育同伴(TDC)的双手抓捕行为进行了研究。参与者进行了15次捕捉，作者检查了运输和抓取阶段的运动学。在运动时相方面，DCD儿童的运动起始和运动时间较长，峰值减速较早。此外，这类儿童启动抓握阶段的时间较早，其最大抓握孔径较大。在患有DCD的儿童中，达到最大抓取孔径的时间变化更大，当作者检查其相对于渔获物的运输阶段时，该孔径更早。这些数据表明，患有DCD的儿童可能会使用分解策略来简化运输的运动控制，并抓住捕获物的各个阶段。
The authors studied 2-handed catching behavior in 10 children with developmental coordination disorder (DCD), aged 7-10 years old, and their typically developing peers (TDC). Participants performed 15 catches, and the authors examined kinematics of both transport and grasp phases. In terms of the transport phase, movement initiation and movement time was longer and peak deceleration was earlier in children with DCD. In addition, such children initiated the grasp phase earlier, and their maximal grasp aperture was larger. In children with DCD, the time to maximal grasp aperture was more variable, and that aperture was earlier when the authors examined it with respect to the transport phase of the catch. The data suggest that children with DCD may use a decomposition strategy to simplify the movement control of the transport and grasp phases of a catch.