Background. Adults benefit more from external focus than internal focus when performing motor skills. Objectives. The aim of this study was to investigate the effects of internal and external focus of attention on dart throwing performance in children with and without developmental coordination disorder. Methods. Twenty men, 20 normal boys and 20 boys with developmental coordination disorder were selected by Motor Observation Questionnaire for Teachers. The task was to throw the darts to the target which was performed in two experimental conditions including internal (related to the movements of the fingers and arm) and external (related to target and dart’s course) focus of attention. Results. The results of ANOVA with repeated measures indicated that along with Constrained Action Hypothesis, adults performed better in condition of external focus of attention. However, for normal children, the use of internal focus of attention was more effective and in children with developmental coordination disorder, no significant difference between two conditions was found. Conclusion. According to results of this study, therapists and coaches should adjust their methods and instructions based on age, experience and developmental conditions of

中文翻译：

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聚焦指示对有和没有发育协调障碍儿童飞镖投掷性能的影响

背景。在执行运动技能时，成年人从外部关注而不是内部关注中受益。目标。这项研究的目的是调查内部和外部关注焦点对有和没有发育协调障碍的儿童飞镖投掷性能的影响。方法。“教师运动观察问卷”选择了二十名男子，二十名正常男孩和二十名患有发育协调障碍的男孩。任务是将飞镖扔到目标上，这是在两个实验条件下进行的，包括内部（与手指和手臂的运动有关）和外部（与目标和飞镖的路线有关）的关注焦点。结果。重复测量的ANOVA结果表明，连同约束行动假说，在外界关注的情况下，成年人表现更好。但是，对于正常儿童，使用内部注意力集中更有效，而在患有发育协调障碍的儿童中，两种情况之间没有发现显着差异。结论。根据这项研究的结果，治疗师和教练应根据年龄，经验和发育状况来调整他们的方法和说明。