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

نویسندگان

1 گروه علوم ورزشی، دانشگاه کردستان

2 گروه تربیت بدنی و علوم ورزشی، دانشگاه آزاد اسلامی، واحد مریوان، مریوان، ایران

3 گروه علوم ورزشی، دانشگاه کردستان، سنندج، ایران

چکیده

مقدمه: اثر مکمل چای سبز و تمرینات مقاومتی بر سطوح مالون دی آلدئید (MDA)، ظرفیت کل آنتی اکسیدانی (TAC) و نیمرخ لیپیدی به خوبی مشخص نیست. پژوهش حاضر بررسی اثرمکمل چای سبز با و بدون فعالیت مقاومتی بر سطوح MDA ، TAC و نیمرخ لیپیدی مردان و زنان دارای اضافه وزن بود. روش شناسی: نمونه آماری این تحقیق 35 زن و مرد (سن: 7/4±9/37، شاخص تود بدن: 2/2±6/28) میانسال داوطلب و دارای اضافه وزن بودند که به صورت تصادفی در سه گروه تمرین + دارونما ، چای سبز و تمرین + چای سبز قرار گرفتند. تمرین مقاومتی به مدت 10 هفته، هفته­ای 3 جلسه در 7 حرکت و با شدت 70 درصد یک تکرار بیشینه انجام شد. آزمودنی­های گروه چای سبز روزانه 2 عدد قرص 500 میلی­گرمی چای سبز و بعد از هر وعده­ی غذایی مصرف کردند. گروه تمرین + دارونما، با شرایط مشابه، مالتودکسترین مصرف کردند. 48 ساعت قبل و بعد از مداخله، خونگیری در شرایط ناشتایی انجام شد. نتایج: تری گلیسرید و HDL در هیچ گروهی تغییر معناداری نداشت (05/0<p). سطوح TAC و MDA تنها در گروه تمرین + چای سبز به ترتیب افزایش (012/0p=) و کاهش (003/0p=) یافت. کلسترول تام در هر سه گروه تمرین + چای سبز (006/0p=)، تمرین + دارونما (001/0=p) و چای سبز (020/0=p) کاهش داشت. LDL تنها در گروه تمرین + چای سبز کاهش پیدا کرد (009/0=p). نتیجه­گیری: مصرف دوره­ی10 هفته­ای مکمل چای سبز همراه با تمرین مقاومتی آثار بهتری نسبت به مصرف چای سبز به تنهایی بر شاخص­های اکسایشی و ضد اکسایشی و همچنین بهبود نیمرخ لیپیدی افراد دارای اضافه وزن دارد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The effect of 10 weeks of resistance training in combination with green tea supplement on MDA, TAC and lipid profile in overweight adults

نویسندگان [English]

  • Mahsa Kahvand 1
  • Hassan Faraji 2
  • Dariush Sheikholeslami-Vatani 3

1 University of Kurdistan

2 Department of physical education and sport sciences, Islamic Azad University, Marivan Branch, Marivan, Iran

3 Department of Physical Education and Sport Sciences, University of Kurdistan, Sanandaj, Iran

چکیده [English]

Introduction: The effect of green tea supplementation and resistance training on malondialdehyde (MDA) levels, total antioxidant capacity (TAC) and lipid profile is not well known. The present study investigated the effect of green tea supplementation with and without resistance training on the levels of MDA, TAC and lipid profiles of overweight men and women. Methodology: The statistical sample of this research was 35 men and women (age: 37.9±4.7, body mass index: 28.6±2.2) middle-aged volunteers and overweight, who were randomly divided into three exercise groups + Placebo, green tea and exercise + green tea were included. Resistance training was performed for 10 weeks, 3 sessions per week in 7 movements and with 70% intensity of one maximum repetition. The subjects of the green tea group consumed 2 tablets of 500 mg of green tea daily and after each meal. The exercise group + placebo, under the same conditions, consumed maltodextrin. 48 hours before and after the intervention, blood sampling was done under fasting conditions. Results: Triglyceride and HDL did not change significantly in any group (p<0.05). TAC and MDA levels increased (p=0.012) and decreased (p=0.003) only in the exercise + green tea group. Total cholesterol was reduced in all three groups of exercise + green tea (p=0.006), exercise + placebo (p=0.001) and green tea (p=0.020). LDL decreased only in the exercise + green tea group (p=0.009). Conclusion: 10-weeks consumption of green tea supplement along with resistance training has better effects than consumption of green tea alone on oxidative and anti-oxidant indices and also improving lipid profile of overweight people.

کلیدواژه‌ها [English]

  • Green tea
  • Oxidative stress
  • Resistance training
  • Lipid profile
  • Total antioxidant capacity
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