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تأثیر فعالیت بدنی منظم بر تغییرات سطح سرمی عامل رشد عصبی مشتق از مغز، بهرۀ هوشی و تبحر حرکتی کودکان کمتوانذهنی | ||
رفتار حرکتی | ||
مقاله 6، دوره 9، شماره 28، مرداد 1396، صفحه 109-128 اصل مقاله (782.6 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22089/mbj.2017.2652.1324 | ||
نویسندگان | ||
امین عیسی نژاد* 1؛ عبدالحسین پرنو2؛ عبدالرضا کاظمی3؛ رسول اسلامی4؛ شیوا پیری5؛ سیده آزاده حسینی6 | ||
1استادیار فیزیولوژی ورزشی، دانشگاه شاهد | ||
2استادیار فیزیولوژی ورزشی، دانشگاه رازی کرمانشاه | ||
3استادیار فیزیولوژی ورزشی، دانشگاه ولیعصر رفسنجان | ||
4استادیار فیزیولوژی ورزشی، دانشگاه علامهطباطبایی | ||
5کارشناسیارشد رفتار حرکتی، دانشگاه شاهد | ||
6کارشناسیارشد فیزیولوژی ورزشی، دانشگاه رازی کرمانشاه | ||
چکیده | ||
فعالیت ورزشی از طریق تحریک ترشح عوامل رشد عصبی بر عملکرد حرکتی و شناختی اثرگذار میباشد. دراینراستا، هدف از پژوهش حاضر بررسی اثر 12 هفته فعالیت ورزشی بر سطوح سرمی عامل رشد عصبی مشتق از مغز و تبحر حرکتی کودکان کمتوانذهنی بود. بدینمنظور، 40 دانشآموز پسر (12ـ6 سال) کمتوانذهنی آموزشپذیر بهصورت هدفمند انتخاب شدند و بهصورت تصادفی در دو گروه شاهد (20 نفر) و تجربی (20 نفر) قرار گرفتند. برنامۀ فعالیت ورزشی شامل انجام حرکات ریتمیک مختلف و بازی بهمدت 12 هفته و بهصورت چهار جلسۀ 45 دقیقهای در هفته بود. 48 ساعت قبل از اولین جلسه و 48 ساعت پس از آخرین جلسۀ تمرینی از تمامی آزمودنیها درحالت ناشتا خونگیری بهعمل آمد. همچنین، سطوح سرمی عامل رشد عصبی مشتق از مغز با استفاده از روش الایزا و تبحر حرکتی از طریق مقیاس لینکلن ـ اوزرتسکی سنجیده شد. بهمنظور تجزیهوتحلیل دادهها نیز آزمون تحلیل کوواریانس مورداستفاده قرار گرفت (P≤0.05). نتایج نشان میدهد که سطوح سرمی عامل رشد عصبی مشتق از مغز پس از اجرای یک دوره فعالیت ورزشی منظم افزایش معناداری یافته است و نمرۀ کلی آزمون تبحر حرکتی نیز در گروه تمرینات ورزشی بهصورت معناداری بهبود پیدا کرده است (P≤0.05). ازسویدیگر، بهرۀ هوشی در هیچیک از گروهها تغییر معناداری را نشان نمیدهد؛ درنتیجه، فعالیت ورزشی منظم ممکن است بهواسطۀ افزایش سطح عامل رشد عصبی مشتق از مغز موجب بهبود تبحر حرکتی کودکان کمتوانذهنی شود. | ||
کلیدواژهها | ||
فعالیت بدنی؛ عامل رشد عصبی مشتق از مغز؛ بهرۀ هوشی؛ تبحر حرکتی؛ کمتوانذهنی | ||
مراجع | ||
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