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Physiology and Pharmacology، جلد ۱۴، شماره ۴، صفحات ۴۴۵-۴۵۷
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عنوان انگلیسی Comparison of Acute Hormonal Responses between Resistance, Endurance and Endurance-Resistance Exercise in Healthy Young Men
چکیده انگلیسی مقاله Introduction: This research was aimed at examining acute responses of hormones such as growth hormone (GH), total testosterone (TT), free testosterone (FT), free fatty acid (FFA) and cortisol to resistance (R), endurance (E) and endurance-resistance (ER) exercise. Methods: The participants of this study were 10 healthy young men. R protocol included bench press, lateral pull down, leg extension and leg curl. E protocol comprised of 30 minutes pedaling by cycle ergometer at 70% maximum heart rate. In the ER protocol, the participants first went through the E protocol and after an interval of 15 minutes they performed the R protocol. In the control group they did not do any exercise. Blood samples were collected before, immediately after and 15 minutes after exercise. Results: Results indicated that GH and FT were significantly increased after all 3 protocols (P< 0.05). TT and FFA were significantly increased after R and E protocols, respectively (P< 0.05). Comparison between groups indicated a significant difference between GH and FT. Cortisol was significantly decreased in the E and ER protocols and the control group (P< 0.05) but it did not have a significant decrease in the R protocol. Conclusion: The E and ER protocols can increase GH with lower lactate and cortisol production, while the R protocol provides better anabolic environment for development and hypertrophy of muscle fiber because of higher stress, metabolic and hormonal responses. The increase of FFA after the E protocol was probably the cause of reduction of GH and TT secretion in the ER protocol.
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نویسندگان مقاله شعیب رضایی | shoeib rezaee
dept. physiotherapy, school of medical sciences, tarbiat modares university, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

صدیقه کهریزی | sedighe kahrizi
dept. physiotherapy, school of medical sciences, tarbiat modares university, tehran, iran.

سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

مهدی هدایتی | mehdi hedayati
prevention amp;amp;treatment of obesity research institute for endocrine sciences, shahid beheshti university of medical sciences,tehran,iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (Shahid beheshti university of medical sciences)

نشانی اینترنتی http://www.phypha.ir/ppj/browse.php?a_code=A-10-32-1&slc_lang=en&sid=en
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Endocrinology
نوع مقاله منتشر شده Original Research
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