تأثیر پلی‌مورفیسم val66met ژن عامل رشد عصبی مشتق شده از مغز بر یادگیری مهارت حرکتی پیچیده

نوع مقاله : مقاله های پژوهشی

نویسندگان

1 دانشجوی دکتری، گروه رفتار حرکتی، دانشکده‌ی تربیت بدنی و علوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران

2 استادیار، گروه رفتار حرکتی، دانشکده‌ی تربیت بدنی و علوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران

3 دانشیار، گروه رفتار حرکتی، دانشکده‌ی تربیت بدنی و علوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران

4 استادیار، مرکز تحقیقات بیوشیمی و تغذیه در بیماری‌های متابولیک، دانشگاه علوم پزشکی کاشان، کاشان، ایران

چکیده

مقدمه: عامل رشد عصبی مشتق شده از مغز (BDNF یا Brain-derived neurotrophic factor)، پروتئینی است که نقش مهمی در حفاظت نورونی، نورون‌زایی و شکل پذیری سیناپسی دارد و به واسطه‌ی آن، می‌تواند نقش مهمی در یادگیری حرکتی ایفا کند. وجود پلی‌مورفیسم تک نوکلئوتیدی val66met در یکی از نواحی ژن BDNF، منجر به اختلال در بیان این پروتئین می‌شود. هدف از انجام تحقیق حاضر، بررسی تأثیر این پلی‌مورفیسم بر یادگیری مهارت حرکتی پیچیده بود.روش‌ها: 100 دانشجو از دانشگاه‌های شهر کاشان (با میانگین سنی 20/2 ± 60/21) به صورت تصادفی انتخاب شدند و پس از انجام آزمایش‌های ژنتیک، 46 نفر فاقد پلی‌مورفیسم val66met و 54 نفر تحت تأثیر این پلی‌مورفیسم شناسایی شدند. 28 نفر از افراد هر دو گروه ژنتیک (56 نفر)، پس از اجرای پیش‌آزمون، به 10 جلسه تمرین دراپ کنترلی بدمینتون پرداختند و 72 ساعت پس از آخرین جلسه‌ی تمرین، پس‌آزمون اجرا شد. برای بررسی طبیعی بودن توزیع داده‌ها، از آزمون Kolmogorov–Smirnov و برای تحلیل داده‌ها، از آزمون‌های Independent t و Repeated masseurs ANOVA، در سطح معنی‌داری 05/0 = α استفاده شد.یافته‌ها: هر چند هر دو گروه، پیشرفت قابل توجهی در اثر تمرین داشتند، تفاوت معنی‌داری در مراحل پیش و پس‌آزمون بین دو گروه وجود نداشت.نتیجه‌گیری: در کل، نتایج این تحقیق نشان از عدم تفاوت بین افراد دارای پلی‌مورفیسم val66met و افراد فاقد این پلی‌مورفیسم در یادگیری مهارت دراپ کنترلی بدمینتون بود. این عدم تفاوت، می‌تواند ناشی از عوامل بسیاری از جمله نوع تکلیف و شیوه‌نامه‌ی تمرینی مورد استفاده در این تحقیق باشد.

کلیدواژه‌ها


عنوان مقاله [English]

The Effect of Brain-Derived Neurotrophic Factor (BDNF) val66met Polymorphism on the Learning of Complex Motor Skill

نویسندگان [English]

  • Abolfazl Shayan-Nooshabadi 1
  • Alireza Saberi-Kakhki 2
  • Mehdi Sohrabi 3
  • Mohamad Ali Dowlati 4
1 PhD Student, Department of Motor Behavior, School of Physical Education and Sports Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
2 Assistant Professor, Department of Motor Behavior, School of Physical Education and Sports Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
3 Associate Professor, Department of Motor Behavior, School of Physical Education and Sports Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
4 Assistant Professor, Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
چکیده [English]

Background: Brain-derived neurotrophic factor (BDNF), is a protein that plays an important role in neuroprotection, neurogenesis and synaptic plasticity, by which it plays an important role in motor learning. The presence of val66met single nucleotide polymorphism in one area of the BDNF gene Leads to disruption in the expression of this protein. The purpose of this study was to investigate whether this polymorphism can impair the learning of the complex motor skill.Methods: 100 students from different universities in Kashan, Iran, (mean age 21/60 ± 2/20) were randomly selected and after genetic test, we identified 46 people without val66met polymorphism, while the other 54 were affected. 28 people of both genetic group (56 people overall), after Pre-test, practiced badminton drop shot for 10 sessions, and 72 hours after the last training session, the post-test had been done. Kolmogorov-Smirnov test was used to investigate the normality of data distribution, and independent t-test and repeated measures ANOVA were used for data analysis (α = 0.05).Findings: Results showed that, although both groups improved their performance through exercise, there was no significant difference between the groups in the pre and post-test.Conclusion: Results of the study showed no significant differences between people with and without val66met polymorphism in the learning of badminton drop shot; however, this may be due to many factors including the type of task and the exercise protocol used in this study.

کلیدواژه‌ها [English]

  • Brain derived neurotrophic factor (BDNF)
  • Single Nucleotide Polymorphism
  • Learning
  • Motor skill
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