نوع مقاله : مقاله پژوهشی
نویسندگان
1 کارشناسی ارشد فیزیولوژی ورزش، گروه فیزیولوژی ورزش، دانشکده علوم انسانی، دانشگاه سمنان، سمنان، ایران.
2 استادیار فیزیولوژی ورزش، گروه فیزیولوژی ورزش، دانشکده علوم انسانی، دانشگاه سمنان، سمنان، ایران.
چکیده
زمینه و هدف: چاقی و نداشتن فعالیت بدنی از جمله عوامل ابتلا به بیماری قلبی- عروقی است. هدف از تحقیق حاضر، بررسی تأثیر چهار هفته تمرین هوازی بر اندوتلین-1 و پپتید ناتریورتیک دهلیزی زنان چاق بود. روش تحقیق: به همین منظور 19 نفر از زنان چاق شهر آمل با میانگین سن (3/3±94/27 سال)، وزن (12/5±4/85 کیلوگرم)، قد (91/4±163 سانتیمتر)، BMI (82/2±28/32 کیلوگرم بر متر مربع) به صورت در دسترس انتخاب و پس از همسان سازی، در دو گروه تمرین (9=n) و گروه کنترل (10=n) قرار گرفتند. برنامه تمرینی گروه تجربی یک برنامه تمرین هوازی، سه جلسه در هفته، به مدت 4 هفته بود، که شامل 10 الی 15 دقیقه گرم کردن، 15 دقیقه تمرین بر روی چرخ کارسنج و 45 دقیقه حرکات هماهنگ هوازی، با شدت 60 الی 72 درصد حداکثر ضربان قلب بود. نمونه گیری خون آزمودنیها، قبل از شروع پروتکل و 48 ساعت پس از آخرین جلسه تمرین، بعد از 12 ساعت ناشتایی گرفته شد. برای اندازه گیری متغیرهای بیوشیمیایی از روش الایزا و برای تجزیه و تحلیل آماری داده ها، از آزمون تحلیل واریانس و تحلیل کوواریانس استفاده گردید. در تمام آزمون ها سطح معنی داری 0/05>p در نظر گرفته شد. یافته ها: چهار هفته تمرین هوازی باعث کاهش عملکرد سیستم فعال کننده اندوتلین-1 در زنان چاق شد (0/007=p)، اما تغییرات ANP از لحاظ آماری معنی دار نبود (0/14=p). نتیجه گیری: بر اساس یافته های پژوهش، اجرای منظم تمرینات هوازی منجر به بهبود سیستم اندوتلیال عروق و متابولیسم بدن در زنان چاق می شود.
کلیدواژه‌ها
عنوان مقاله [English]
Effect of four weeks aerobic training on Endothelin-1 and ANP in obese women
نویسندگان [English]
- Samaneh Nazemian 1
- rouhollah haghshenas 2
- Mohsen Ebrahimi 2
1 Msc of Exercise Physiology, Department of Physical Education, Faculty of Human Science, Semnan University, Semnan, Iran.
2 Assistant Professor of Exercise Physiology, Department of Physical Education, Faculty of Human Science, Semnan University, Semnan, Iran.
چکیده [English]
Background and Aim: Obesity and physical inactivity lead to cardiovascular disease. The purpose of this study was to investigate the effect of four weeks' endurance training and aerobic movements on ANP and Endothelin-1 in obese women. Materials and Methods: Subject was included 19 obese women (mean age: 27.94± 3.3 year), (mean weight 85.4±5.12 kg), (mean height: 163.00± 4.91 cm), (mean BMI: 32.28±2.82 kg/m2) that were randomly allocated to experimental (n=9) and control groups (n=10). The experimental group completed a program training, which included 10 to 15 minutes of warm-up, 15 minutes of activity with ergometer and 45 minutes of aerobic movements, with an intensity of 60 to 72% of the HRmax, three sessions per week, for four weeks. Samples blood were taken after 12 hour fasting, before of start and 48 hours after end program training. ELIZA reader methods used for analysis of bio parameter and MANCOVA and ANCOVA used for date analysis in significant of PResults: Results showed significant differences between groups in endothelin-1 (P=0.007) but ANP changes were not statistically significant (P=0.14). Conclusion: Based on research findings, four weeks of aerobic training results in reduced the function of activating system of endothelin-1 in obese women and may play a role in improving the vascular endothelial system and body metabolism in obese women.
کلیدواژه‌ها [English]
- Aerobic training
- Obesity
- ANP
- Endothelin-1
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