Utley Andrea, Astill Sarah Louise
Centre for Sport and Exercise Sciences, Institute of Membrane and Systems Biology, Faculty of Biological Sciences, University of Leeds, United Kingdom.
Physiother Theory Pract. 2007 Mar-Apr;23(2):65-82. doi: 10.1080/09593980701211838.
The present study examined the movement patterns in children with developmental coordination disorder (DCD) and their age-matched controls (AMC) while catching two-handed. First, a cross-sectional study was conducted to investigate developmental characteristics within the three body component actions (arm, hand, and body) of two-handed catching hypothesized by Haywood and Getchell (2005). Data analyzed from 36 children (18 DCD, 18 AMC) aged 7-10 years who caught a ball 10 times, two-handed, showed that hypothesized sequences for the arm, hand, and body met the prelongitudinal screening criteria proposed by Roberton (1978), Langendorfer (1982), and Roberton, Williams, and Langendorfer (1980). In light of this, the second part of the study used these sequences to evaluate the movement patterns of 10 children with and 10 without DCD, aged 7-8 years. The data revealed that children with DCD displayed less advanced modal developmental sequence levels than AMC children with respect to the arm and body action components. (p <or= 0.01) Children with DCD also exhibited less advanced developmental profiles than the AMC children (p <or= 0.05), the group modal profiles being A2-H2-B2 and A3-H3-B3, respectively. These data also show that each child with DCD exhibited more developmental profiles over the 30 trials than the AMC children (p <or= 0.01) and that each DCD child's modal developmental profile was unstable (Roberton, 1977). Thus, over trials children with DCD link together different action patterns of the arm, hand, and body, suggesting that they have not yet developed a stable pattern of coordination to satisfy the task constraints.
本研究调查了发育性协调障碍（DCD）儿童及其年龄匹配对照组（AMC）在双手接球时的运动模式。首先，进行了一项横断面研究，以调查Haywood和Getchell（2005）假设的双手接球的三个身体组成部分动作（手臂、手部和身体）的发育特征。对36名7至10岁的儿童（18名DCD儿童、18名AMC儿童）进行分析，他们每人双手接球10次，结果显示，手臂、手部和身体的假设序列符合Roberton（1978）、Langendorfer（1982）以及Roberton、Williams和Langendorfer（1980）提出的纵向前期筛查标准。据此，研究的第二部分使用这些序列评估了10名7至8岁的DCD儿童和10名非DCD儿童的运动模式。数据显示，在手臂和身体动作组成部分方面，DCD儿童的模态发育序列水平不如AMC儿童先进（p≤0.01）。DCD儿童的发育概况也不如AMC儿童先进（p≤0.05），两组的模态概况分别为A2-H2-B2和A3-H3-B3。这些数据还表明，在30次试验中，每个DCD儿童展现出的发育概况比AMC儿童更多（p≤0.01），且每个DCD儿童的模态发育概况不稳定（Roberton，1977）。因此，在多次试验中，DCD儿童将手臂、手部和身体的不同动作模式联系在一起，这表明他们尚未形成一种稳定的协调模式来满足任务要求。
