تأثیر شدت‌های مختلف تمرینات مقاومتی بر عملکرد کبد در مردان چاق

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دکتری تخصصی فیزیولوژی ورزش، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه آزاد اسلامی، واحد تهران مرکزی، تهران، ایران

2 استادیار گروه فیزیولوژی ورزش، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه آزاد اسلامی، واحد تهران مرکزی، تهران، ایران

3 استاد گروه فیزیولوژی ورزش، دانشکدۀ تربیت بدنی و علوم ورزشی، دانشگاه آزاد اسلامی، واحد تهران مرکزی، تهران، تهران ایران

چکیده

 
این اساس هدف از این مطالعه بررسی تأثیر هشت هفته تمرینات مقاومتی با شدت‌های مختلف بر نتایج تست‌های عملکرد کبد در مردان چاق بود. مطابق معیارهای ورود به پژوهش 32 مرد چاق انتخاب شدند و به‌طور تصادفی در 4 گروه 8 نفری (کنترل، تمرین با شدت کم:30% یک تکرار بیشینه، تمرین با شدت متوسط:50% یک تکرار بیشینه و تمرین با شدت زیاد:70% یک تکرار بیشینه) قرار گرفتند. سه گروه تمرینات مقاومتی را با شدت‌های مختلف 3 بار در هفته انجام دادند. نمونه‌های خونی در پیش‌آزمون، میان‌آزمون و پس‌آزمون ( پس از 12 ساعت ناشتایی) اندازه‌گیری شد. داده‌ها با استفاده از آزمون تحلیل واریانس با اندازه‌های مکرر تجزیه‌وتحلیل شدند. در گروه‌های تمرین درصد چربی بدن، ALT،GGT و AST در مقایسه با گروه کنترل به طرز معنا‌داری کاهش یافتند (P<.05). اما تغییرات معنا‌داری در نشانگران غیرآنزیمی (آلبومین و بیلی‌روبین سرم) مشاهده نشد. با توجه به نتایج پژوهش حاضر می‌توان گفت که تمرینات مقاومتی موجب بهبود نشانگران آنزیمی عملکرد کبد در مردان چاق می‌شود. همچنین تمرین با شدت سبک و تکرار زیاد می‌تواند فواید بهتری داشته باشد.

کلیدواژه‌ها

عنوان مقاله [English]

The Effect of Different Resistance Training Intensities on Liver Function in Obese Men

نویسندگان [English]

  • mohamad alie 1
  • hasan Matinhomaee 2
  • Mohamadali&lrm; Azarbayjani&lrm; 3
  • Maghsoud&lrm; Peeri 3
1 Islamic azad university,central Tehran branch
2 Department of Exercise Physiology, school of physical education and sport science, Islamic &lrm;Azad University, Central Tehran Branch, Tehran, Iran&lrm;
3 Department of Exercise Physiology, school of physical education and sport science, Islamic &lrm;Azad University, Central Tehran Branch, Tehran, Iran&lrm;
چکیده [English]

 
Normal liver function is of crucial importance for metabolism and might be affected by exercise training. Accordingly, the aim of this study was to investigate the effects of 8 weeks of resistance training with various intensities on liver function test results in obese males. According to the inclusion criteria of the study, 32 obese males were selected and randomly assigned to 4 groups (each group 8 subjects): control, resistance training with low intensity (30% 1-RM), resistance training with moderate intensity (50% 1-RM) and resistance training with high intensity (70% 1-RM). Three groups carried out the resistance training with different intensities 3 times a week. Blood samples were measured in the pretest, mid-test and posttest (after 12 hours of overnight fasting). The collected data were analyzed by variance analysis test with repeated measures. Body fat percent, ALT, GGT and AST significantly reduced in experimental groups compared with the control group (P<0.05). However, no significant changes were observed in non-enzymatic markers (TB, ALB). According to these results, it can be concluded that resistance training improves enzymatic markers of liver function in obese males. Furthermore, resistance training with low intensity and higher frequency can be more beneficial.

کلیدواژه‌ها [English]

  • Exercise intensity
  • liver function
  • obese males
  • resistance training

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