تاثیر یک دوره برنامه تمرین تعادلی تحت شرایط تکلیف دوگانه بر حافظه کاری کودکان با اختلال هماهنگی رشدی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری رشد حرکتی، دانشکده علوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران

2 استاد رفتار حرکتی، دانشکده علوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران

3 دانشیار رفتار حرکتی، دانشگاه فردوسی مشهد، مشهد، ایران

4 استادیار کودکان، دانشگاه علوم پزشکی مشهد، مشهد، ایران

10.22059/jmlm.2021.283379.1455

چکیده

هدف این پژوهش، بررسی تأثیر یک دوره برنامة تمرین تعادلی منتخب در شرایط تکلیف دوگانه و منفرد بر حافظة کاری کودکان با اختلال هماهنگی رشدی بود. روش پژوهش، نیمه‌تجربی و از نوع طرح پیش‌آزمون- پس‌آزمون- پیگری با گروه کنترل بود. بدین‌منظور 39 دانش‌آموز پسر مبتلا به اختلال هماهنگی رشدی به روش نمونه‌گیری در دسترس انتخاب شدند و به‌صورت تصادفی به 3 گروه 13 نفرة تمرین در شرایط دوگانه، تمرین در شرایط منفرد و کنترل تقسیم شدند. دو گروه تجربی به مدت 8 هفته تحت مداخلة تمرینات منتخب تعادلی در دو شرایط مختلف دوگانه و منفرد قرار گرفتند. شرکت‌کنندگان در سه مرحلة پیش‌آزمون، پس‌آزمون و آزمون پیگری (دو ماه بعد از پس‌آزمون) با استفاده از آزمون بلوک‌های تپندة کورسی ارزیابی شدند. تحلیل داده‌ها با استفاده از روش تحلیل کوواریانس با اندازه‌گیری مکرر و همچنین تحلیل کوواریانس یکراهه نشان داد که در پس‌آزمون، حافظة کاری در گروه تکلیف دوگانه برتر از هر دو گروه تکلیف منفرد و کنترل بود (05/0P<). همچنین تفاوت معناداری از پیش‌آزمون تا پس‌آزمون در همة گروه‌های آزمایشی جز گروه تکلیف منفرد در شاخص گستردة بلوک و گروه کنترل مشاهده شد. در آزمون پیگری، این برتری تنها در شاخص نمرة کلی و کل کوشش‌های صحیح مشاهده شد. همچنین، گروه تکلیف منفرد در پس‌آزمون از گروه کنترل برتر بود (05/0P<). به‌‌دلیل اهمیت کارکردهای اجرایی، استفاده از این برنامة تمرینی منتخب به‌منظور بهبود حافظة کاری می‌تواند ابزار مفیدی برای این گروه از کودکان باشد.

کلیدواژه‌ها


عنوان مقاله [English]

The effect of a balance training program under dual-task conditions on working memory of children with developmental coordination disability

نویسندگان [English]

  • Hamideh Jahanbakhsh 1
  • mehdi sohrabi 2
  • Aireza Saberi Kakhki 3
  • Ezzat Khodashenas 4
1 PhD candidate of Ferdowsi University of Mashhad, Mashhad, I. R. Iran
2 Professor of Ferdowsi University of Mashhad, Mashhad, I. R. Iran
3 Department of Motor Behavior, Faculty of Sport Sciences, Ferdowsi University of Mashhad
4 Dep. of Pediatric, Faculty of Medicine, Mashhad University of Medical Sciences, Iran
چکیده [English]

The aim of this study was to investigate the effect of a selected balance training program under dual and single-task conditions on working memory of children with developmental coordination disorder. The research method was semi-experimental and a pre-test-post-test- follow-up design with a control group. In this study, 39 boys with DCD were selected by the available sampling method and randomly assigned to three groups: Dual-task training (n=13), single-task training (n=13), and control (n=13). The two experimental groups performed a selected training program with two different conditions for 8 weeks. All subjects were evaluated in three stages of pre-test, post-test and follow-up test (two months after post-test) by the Corsi block-tapping test (working memory test). Data analysis using ANOVA with the repeated measure as well as one-way ANCOVA showed that in the post-test, working memory in dual-task group was superior to both single and control groups (P <0.05). Also, a significant difference was observed from pre-test to post-test in all experimental groups except the single task group in the extended block index and the control group. In the follow-up test, this superior was maintained only in the overall score index and the overall effort. Also, the single-task group was superior to the control group in the post-test (P <0.05). Due to the importance of executive function, using this selected exercise program to improve working memory can be a useful tool and is suggested for this group of children.

کلیدواژه‌ها [English]

  • Dual Task
  • Single Task
  • work memory
  • Developmental Coordination Disorder
  • executive function
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