تاثیر تمرین تناوبی با شدت بالا بر بیان FGF21 عضله نعلی و پروفایل لیپیدی در موش‌های صحرایی تغذیه شده با رژیم پرچرب

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

نویسندگان

1 گروه تربیت بدنی و علوم ورزشی، دانشگاه تربیت مدرس، تهران، ایران.

2 گروه تربیت بدنی و علوم ورزشی، دانشگاه تربیت مدرس، تهران، ایران

چکیده

هدف: راهکارهای دقیق درمانی و همزمان بررسی مکانیسم‌های درگیر در چاقی بسیار ضروری است. در نتیجه هدف از انجام تحقیق حاضر تاثیر تمرین تناوبی با شدت بالا بر بیان FGF21 عضله نعلی و پروفایل لیپیدی در موش‌های صحرایی تغذیه شده با رژیم پرچرب بود. روش پژوهش: بدین منظور 24 سر رت نر (سن: شش هفته، وزن: 20±200 گرم) به طور تصادفی به چهار گروه کنترل (CON) (6N=)، کنترل+تمرین (CON+EXE) (6N=)، رژیم پرچرب (HFD) (6N=) و رژیم پرچرب+تمرین (HFD+EXE) (6N=) تقسیم شدند. مداخله رژیم غذایی و ورزش همزمان شروع شد و به مدت 10 هفته ادامه داشت. تمرین HIIT هشت دوره فعالیت اینتروال (90 درصدMRC   به مدت 5/2 دقیقه) با دوره­های استراحت فعال (50 درصد MRC) به مدت 5/2 دقیقه) بود. برای بررسی FGF21 عضله نعلی از روش  PCR_qRT  استفاده شد. همچنین شاخص­های لیپیدی در سرم نیز اندازه‌گیری شد. برای تحلیل داده­ها از آزمون آنوای یکطرفه و آزمون تعقیبی توکی استفاده شد. سطح معنی­داری 05/0>P در نظر گرفته و آنالیزهای آماری توسط نرم­افزار SPSS27 مورد ارزیابی قرار گرفت. یافته‌ها: با انجام HIIT، کاهش وزن و BMI و هم­چنین کاهش LDL، کلسترول و افزایش HDL و نسبت HDL/LDL در گروه­های تمرین در مقایسه با کنترل­ مشاهده شد (001/0P=). بیان FGF21 عضله نعلی در گروه­های تمرین در مقایسه با گروه­های کنترل خود افزایش معنی­دار داشتند (001/0P=). نتیجه‌گیری: ده هفته انجام HIIT بدون محدودیت کالریک؛ می­تواند به طور بالقوه موجب افزایش بیان FGF21 و اثرات مثبت آن بر بهبود پروفایل لیپیدی و کاهش وزن شود. پس این نوع تمرین می‌تواند چاقی و عوارض ناشی از آن بدون محدودیت کالریک نیز تعدیل و تنظیم کند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

The Effect of High-Intensity Interval Training on Soleus Muscle FGF21 Expression and Lipid Profile in Rats Fed a High-Fat Diet

نویسندگان [English]

  • Mozhgan Rezvani Rad 1
  • Mahdieh Molanouri Shamsi 1
  • Reza Gharakhanlou 2
  • Shahnaz Shahrbanian 2
1 Department of Physical Education and Sport Sciences, Tarbiat Modares University, Tehran, Iran.
2 Department of Physical Education and Sport Sciences, Tarbiat Modares University, Tehran, Iran
چکیده [English]

Aim:       Precise therapeutic strategies and simultaneous investigation of the mechanisms involved in obesity are essential. Therefore, the present study aimed to investigate the effect of high-intensity interval training on soleus muscle FGF21 expression and lipid profile in rats fed a high-fat diet. Methods: For this purpose, 24 healthy adult male rats (Age: six weeks, weight: 200±20 grams) were randomly divided into four groups: control (CON) (N=6), control+exercise (CON+EXE) (N=6), high-fat diet (HFD) (N=6), and high-fat diet+exercise (HFD+EXE) (N=6). Diet and exercise interventions were initiated simultaneously and continued for 10 weeks. HIIT training consisted of eight periods of interval activity (90% MRC for 2.5 min) with active rest periods (50% MRC) for 2.5 min). The PCR_ method was used to examine FGF21 expression in the soleus muscle. Serum lipid indices were also measured.  One-way ANOVA and Tukey's post hoc test were used to analyze the data. The significance level was considered to be P<0.05, and statistical analyses were evaluated using SPSS27 software. Results: By performing HIIT, weight and BMI were reduced, and LDL, cholesterol, HDL, and HDL/LDL ratio were increased in the training groups compared to those in the control group (P=0.001). The expression of FGF21 in the soleus muscle was significantly higher in the training group than in the control group (P=0.001). Conclusions:  Ten weeks of HIIT without caloric restriction could potentially increase FGF21 expression and improve lipid profiles and weight loss. Therefore, this type of training can modulate and regulate obesity and its complications, without caloric restriction.

کلیدواژه‌ها [English]

  • Obesity
  • High-Fat Diet
  • Skeletal Muscle
  • Fibroblast Growth Factor 21 (FGF21)
  • High-Intensity Interval Training (HIIT)
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