نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه فیزیولوژی ورزشی، دانشکدةعلوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران

2 دکترای تخصصی فیزیولوژی ورزشی، دانشکدةعلوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران

3 کارشناس ارشد فیزیولوژی ورزشی، دانشکدةعلوم ورزشی، دانشگاه فردوسی مشهد، مشهد، ایران

چکیده

زمینه و هدف: چاقی در بیماران، کاهش عملکرد کلیه را به دنبال دارد و در افراد سالم، منجر به آسیب‌های کلیوی می‌گردد. هدف از این تحقیق بررسی تأثیر هشت هفته تمرین هوازی در آب با و بدون مصرف چای سبز بر عملکرد کلیوی زنان یائسه غیرفعال می‌باشد.
مواد و روش‌ها: از بین 60 داوطلب، 29زن یائسه غیر فعال که دارای شاخص توده بدنی بالاتر از 25 کیلوگرم بر متر مربع بودند، به طور تصادفی به سه گروه تمرین، مکمل و تمرین+مکمل تقسیم شدند. برنامه تمرین هوازی به‌مدت 8 هفته، هر هفته 3 جلسه و هرجلسه 45 دقیقه با شدت 75-65% ضربان قلب بیشینه اجرا شد. گروه مکمل، روزانه 6 گرم پودر خشک چای سبز را در 600 میلی‌لیتر آب تقریبا جوش ( 80درجه سانتی‌گراد)، یک ساعت قبل از وعده‌های غذایی به‌مدت 8 هفته مصرف کردند. گروه ترکیبی به‌طور هم‌زمان به تمرین‌ و مصرف چای سبز پرداختند.
یافته‌ها: در گروه چای سبز، کراتینین سرم (048/0=p) کاهش معنی‌دار یافت؛ در‌حالی‌که هیچ یک از متغیر‌ها در گروه‌های تمرین (اسیداوریک(432/0=p)، اوره (681/0=p) و کراتینین (1=p)) و تمرین+مکمل (اسیداوریک (597/0=p)، اوره (270/0=p) و کراتینین (235/0=p) تغییر معنی‌داری نداشت. تغییرات بین‌گروهی نیز در هیچ یک از متغیر‌ها معنی‌دار نبود.
نتیجه‌گیری: تمرینات هوازی در آب به مدت هشت هفته به تنهایی و همراه با مصرف چای سبز تأثیری در بهبود عملکرد کلیوی افراد چاق و داری اضافه وزن نداشت، در حالی‌که مصرف چای سبز به تنهایی باعث کاهش سطوح کراتینین و بهبود عملکرد کلیوی گردید.

کلیدواژه‌ها

عنوان مقاله [English]

The effect of aerobic exercise in water with and without green tea consumption on kidney function in sedentary postmenopausal women

نویسندگان [English]

  • Nahid Bijeh 1
  • fahime sadat jamali 2
  • fateme nejati 3
  • mahbobe lotfalizade 3

1 Associated Professor of Department of Sports Physiology, Faculty of sport sciences, Ferdowsi University of Mashhad, Mashhad, Iran

2 PhD Student in Sports Physiology, Faculty of sport sciences, Ferdowsi University of Mashhad, Mashhad, Iran

3 M.Sc. in Sports Physiology, Faculty of sport sciences, Ferdowsi University of Mashhad, Mashhad, Iran

چکیده [English]

Background: Obesity in patients is followed by decreased kidney function and leads to renal damage in healthy people. The aim of this study was to investigate the effect of aerobic exercise with and without green tea consumption on kidney function in sedentary postmenopausal women.
Materials and Methods: Out of 60 volunteers, 29 sedentary postmenopausal women with a body mass index higher than 25 kg/m2 were randomly divided into three groups, exercise, supplement and exercise+supplement. Aerobic exercise program was performed for 8 weeks, 3 sessions per week and each session for 45 minutes at 65-75 % of maximum heart rate. Supplement groups consumed 6 g of green tea powder in 600 ml of almost boiling water (80 °) daily and one hour before their meals for 8 weeks. Combined group performed exercise and consumed supplement, simultaneously.
Results: In supplement group, creatinine levels (p=0.048) decreased significantly; While none of the variables in exercise group (uric acid (p=0.432), urea (p=0.681) and creatinine (p=1)) and exercise+supplement group (uric acid (p=0.597), urea (p=0.270) and creatinine (p=0.235)) had no significant change. Between groups changes in any of the variables was not significant too.
Conclusion: Eight weeks of aerobic exercises in water alone and in combination with green tea consumption did not improve renal function in obese and overweight postmenopausal women, while green tea consumption alone decreased serum creatinine and improved renal function.

کلیدواژه‌ها [English]

  • Aerobic Exercise
  • Creatinine
  • green tea
  • Urea
  • Uric acid 
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