نوع مقاله : مقاله پژوهشی Released under CC BY-NC 4.0 license I Open Access I

نویسندگان

1 گروه فیزیولوژی ورزشی، پردیس بین‌المللی کیش دانشگاه تهران، کیش، ایران.

2 نویسندۀ مسؤول، گروه فیزیولوژی ورزشی، دانشکدۀ علوم ورزشی و تندرستی، دانشگاه تهران، تهران، ایران.

3 گروه فیزیولوژی ورزشی، دانشکدۀ علوم ورزشی و تندرستی، دانشگاه تهران، تهران، ایران.

چکیده

مقدمه: تأثیر نوع فعالیت ورزشی بر برخی سازوکار‌های شناختی در بیماران مبتلا به آلزایمر (AD) هنوز به‌خوبی شناخته نشده است. ازاین‌رو هدف تحقیق حاضر مقایسۀ اثر تمرین تناوبی شدید (HIIT) و تمرین در محیط غنی‌سازی‌شدة حرکتی (MEEA) بر بیان پروتئین‌های لپتین و عامل تغذیه‌کنندة مشتق از مغز (BDNF) در بافت هیپوکامپ موش‌های صحرایی مبتلا به آلزایمر بود.
روش پژوهش: در این تحقیق تجربی 24 سر موش صحرایی مبتلا به AD به گروه‌های 1. کنترل AD، 2. گروه HIIT و 3. گروه MEEA تقسیم شدند. گروه شم (Sh) برای بررسی اثر جراحی و تزریق سالین و گروه کنترل سالم (HC) برای بررسی اثر القای AD در نظر گرفته شد. گروه HIIT به مدت هشت هفته، پنج جلسه در هفته و هر جلسه در 9 تناوب 90 ثانیه‌ای با شدت 85 درصد سرعت بیشینه به تمرین پرداختند و گروه تمرین MEEA در قفس‌های ویژة غنی‌شدة حرکتی قرار گرفتند. برای تجزیه‌وتحلیل داده‌ها از آزمون آنالیز واریانس یکراهه همراه با آزمون تعقیبی توکی استفاده شد (P≤0.05).
یافته‌ها: نتایج نشان داد در گروه AD، سطوح BDNF (P=0.001) پایین‌تر و سطوح لپتین (P=0.001) بالاتر از گروه HC بود. در گروه HIIT سطوح لپتین (P=0.005) پایین‌تر و سطوح BDNF(P=0.019) بالاتر از گروه AD بود. اختلاف معناداری در لپتین(P=0.72) و BDNF(P=0.65) بین دو گروه تمرینی مشاهده نشد
نتیجه‌گیری: به‌نظر می‌رسد HIIT و MEEA هر دو در بهبود نروتروفین‌ها و سوخت‌وساز هیپوکامپ مؤثرند، اما تأثیر تمرین تناوبی شدید به‌دلیل سازگاری ناشی از فعالیت ورزشی مطلوب‌تر است.  

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Comparison of the Effects of High-Intensity Interval Training and Activity in Motor Enriched Environment on the Expression of Leptin and Brain-Derived Neurotrophic Factor Proteins in the Hippocampal Tissue of Rats with Alzheimer’s Disease

نویسندگان [English]

  • Marsa Mohammadishad 1
  • Mohammad reza Kordi 2
  • Siroos Choobine 3

1 Department of Exercise Physiology, Kish International Campus, University of Tehran, Kish, Iran.

2 Corresponding Author, Department of Exercise Physiology, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran.

3 Department of Exercise Physiology, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran.

چکیده [English]

Introduction: The effect of physical activity on some cognitive mechanisms in Alzheimer's Disease (AD) patients is not yet well understood. Therefore, this study aimed to compare the effect of High-Intensity Interval Training (HIIT) and Motor Enriched Environment Activity (MEEA) on the expression of leptin and Brain-Derived Neurotrophic Factor (BDNF) in the hippocampal tissue of rats with AD. 
Methods: In this experimental study, 24 rats with AD were divided into AD control, HIIT, and MEEA groups. The Sham (SH) group was considered to evaluate the effect of surgery and saline injection and the Healthy control (HC) group was considered to evaluate the effect of AD induction. The HIIT group trained for eight weeks, five sessions per week, and each session consisted of nine 90-second intervals at 85% of maximum speed intensity, and the MEEA group was placed in special motor-enriched cages. One-way analysis of variance and Tukey's post hoc tests were used to analyze the data (P≤0.05).
Results: The results showed that in the AD group, BDNF levels were lower (P=0.001), and leptin levels were higher (P=0.001) than in the HC group. In the HIIT group, leptin levels were lower (P=0.005), and BDNF levels were higher (P=0.019) than in the AD group. The two training groups showed no significant difference in leptin (P=0.72) and BDNF (P=0.65) levels.
Conclusion: Both HIIT and MEEA appear to be effective in improving neurotrophins and hippocampal metabolism, but the effect of HIIT is more favorable due to exercise-induced adaptation.

کلیدواژه‌ها [English]

  • Alzheimer’s Disease
  • BDNF
  • Forced Exercise
  • Leptin
  • Voluntary Activity

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