تاثیر هشت هفته تمرین هوازی منتخب در آب بر سطوح لیپوکالین ـ 2، شاخص‌های گلیسمیک و پروفایل لیپیدی در مردان میانسال اضافه وزن

نوع مقاله: مقاله پژوهشی

نویسندگان

1 استادیار فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه ارومیه، ارومیه، ایران

2 دانشیار فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه ارومیه، ارومیه، ایران.

3 دانشجوی دکتری فیزیولوژی ورزشی، دانشکده علوم ورزشی، دانشگاه ارومیه، ارومیه، ایران.

چکیده

لیپوکالین ـ2، آدیپوکاین جدیدی است که از بافت چربی ترشح می‌شود و با التهاب خفیف، چاقی، مقاومت انسولینی و سندروم متابولیک ارتباط نزدیکی دارد. هدف پژوهش حاضر، بررسی تأثیر 8 هفته تمرین منتخب در آب بر سطوح لیپوکالین ـ2، شاخص‌های گلیسمیک و پروفایل لیپیدی در مردان میانسال دارای اضافه‌وزن بود. بدین‌منظور 24 مرد دارای اضافه‌ وزن (Kg/m225BMI≥) 45 تا 55 ساله به‌صورت فراخوان عمومی، از میان 70 داوطلب به‌منظور شرکت در این مطالعه، به‌طور تصادفی انتخاب شدند و پس از دارا بودن شرایط لازم به دو گروه تجربی (12 نفر) و کنترل (12 نفر) تقسیم شدند. برنامۀ تمرینی شامل تمرینات هوازی در آب با شدت 45 تا 65 درصد ضربان قلب بیشینه به مدت 8 هفته بود. نمونه‌های خونی پیش و پس از تمرین به‌منظور اندازه‌گیری متغیرهای تحقیق گرفته شد. یافته‌ها نشان داد در مقایسۀ بین گروه‌های کنترل و تجربی با استفاده از آزمون t مستقل تفاوت معناداری در متغیرهای لیپوکالین-2، شاخص مقاومت انسولینی، کلسترول، تری‌گلیسرید و LDL-C مشاهده شد (05/0>P)، درحالی‌که تغییرات متغیرهای گلوکز، انسولین و HDL-C معنادار نبود (05/0P>). نتایج نشان داد یک دوره تمرینات هوازی در آب توانست تأثیرات مثبتی بر کاهش برخی عوامل خطرزای قلبی عروقی در مردان میانسال دارای اضافه‌وزن داشته باشد. بنابراین، این تمرینات می‌تواند جهت توصیۀ تمرینی توسط متخصصان ورزش و سلامت در این افراد استفاده شود.
 

کلیدواژه‌ها


عنوان مقاله [English]

Effect of 8 weeks of selected aquatic aerobic training on lipocalin-2, glycemic and lipid profile indices in overweight middle-aged men

نویسندگان [English]

  • javad toloueiazar 1
  • Asghar Tofighi 2
  • ghafour ghafari 3
1 assistant professor of exercise physiology, Faculty of sport Sciences, Urmia University, Urmia, Iran
2 Associate Professor of exercise Physiology, Faculty of Sport Sciences, Urmia University, Urmia, Iran
3 PhD Student of Exercise Physiology, Faculty of Sport Sciences, Urmia University, Urmia, Iran.
چکیده [English]

Lipocalin-2 is a novel adipokine which is secreted from adipose tissues and is closely associated with low inflammation, obesity, insulin resistance and metabolic syndrome. The aim of this study was to investigate the effect of 8 weeks of selected aquatic aerobic training on lipocalin-2, glycemic indices and lipid profile in overweight middle-aged men. 24 overweight men (BMI≥25 Kg/m2, age range of 45 to 55 years old) were selected randomly from 70 volunteers after a public call. After they met necessary requirements, they were divided into experimental (n=12) and control (n=12) groups. Training program included selected aquatic aerobic training with 45-65% of maximum heart rate for 8 weeks. Blood samples were collected before and after training to measure study variables. The comparison of control and experimental groups with independent t test showed a significant difference in lipoprotein-2, insulin resistance index, cholesterol, triglyceride and LDL-C (P<0.05) while changes in glucose, insulin and HDL-C variables were not significant (P>0.05). Results showed that aquatic aerobic training could have positive effects on reducing some cardiovascular risk factors in overweight middle-aged men. Therefore, these types of training can be recommended by sport and health experts for these individuals.

کلیدواژه‌ها [English]

  • Aquatic aerobic training
  • glycemic indices
  • lipid profile
  • lipocalin-2
  • middle-aged men
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