en کنترل حرکتی و شاخه‌های وابسته بدان Motor Control and its Related Branches مقاله اصیل Original Article <div style="text-align: justify;"><span style="font-family:times new roman;"><span style="font-size:12px;"><strong>Background. </strong>Adults benefit more from an&nbsp;</span></span><span style="font-family:times new roman;"><span style="font-size:12px;">external</span></span><span style="font-family:times new roman;"><span style="font-size:12px;"> focus than internal focus when performing motor skills.<br> <strong>Objectives. </strong>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.<br> <strong>Methods. </strong>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&rsquo;s course) focus of attention.<br> <strong>Results. </strong>The results of ANOVA with repeated measures indicated that along with Constrained Action Hypothesis, adults performed better in the&nbsp;</span></span><span style="font-family:times new roman;"><span style="font-size:12px;">condition</span></span><span style="font-family:times new roman;"><span style="font-size:12px;"> of external focus of attention. However, for normal children, the use of the&nbsp;</span></span><span style="font-family:times new roman;"><span style="font-size:12px;">internal</span></span><span style="font-family:times new roman;"><span style="font-size:12px;"> focus of attention was more effective and in children with developmental coordination disorder, no significant difference between the&nbsp;</span></span><span style="font-family:times new roman;"><span style="font-size:12px;">two</span></span><span style="font-family:times new roman;"><span style="font-size:12px;"> conditions was found.<br> <strong>Conclusion. </strong>According to results of this study, therapists and coaches should adjust their methods and instructions based on age, experience and developmental conditions of individuals.</span></span></div> Focus Of Attention, Children, DCD, Dart Throw, Constrained Action Hypothesis 55 60 http://aassjournal.com/browse.php?a_code=A-11-706-1&slc_lang=en&sid=1 Shabnam Fathi Khatab shabnamfathii@yahoo.com 10031947532846007100 10031947532846007100 No Motor Behavior Department, Physical Education Faculty, Science and Research Branch, Islamic Azad University, Tehran, Iran Abdollah Ghasemi a_gh_m2003@yahoo.com 10031947532846007101 10031947532846007101 Yes Motor Behavior Department, Physical Education Faculty, Science and Research Branch, Islamic Azad University, Tehran, Iran Seyed Kazem Mousavi Sadati Drmousavisadati@gmail.com 10031947532846007102 10031947532846007102 No Motor Behavior Department, Physical Education Faculty, East Tehran Branch, Islamic Azad University, Tehran, Iran