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:: Volume 18, Number 2 (7-2016) ::
2016, 18(2): 105-111 Back to browse issues page
The Effect of Interval Exercise in Hypoxia on Responses of PYY3-36 and Appetitein Overweight Individuals
fatemeh forooghi nasab *, Dr Fariborz Hovanloo, Dr Sajad Ahmadizad
ms Shahid Beheshti University , f.forooghi@yahoo.com
Abstract:   (2312 Views)

Introduction: Since obesity and overweight have dramatically increased in recent years, the purpose of this study was to compare the effects of hypoxia on responses of PYY3-36 and the appetite to interval exercise among overweight individuals. Materials and Methods: Eight healthy male subjects (age, 22.14±2.11 yrs; height,175.28±7.69 cm; weight, 87.03±5.95 kg; BMI, 28.4±1.5 kg/m2) voluntarily participated in the study and performed an exercise protocols (cycling) in noromxic and hypoxic conditions on two separate sessions (Counterbalance) with a one week interval. Interval exercise included 5 repetitions of 4-min activity at 85%of HRmax, followed by 2-min active restat 50% of HRmax. The environmental and training conditions were kept constant in two sessions, with the exception that the interval exercise was performed with 15% reduction in oxygen partial pressure in a hypoxic trial. Blood samples were taken before and after exercise (10, 20, 40, 60 and 80 minutes) and were analyzed for measuring the PYY3-36 using the ELISA technique. Results: Environmental conditions did not induce significant effect on PYY3-36 responses to interval exercise (P=0.1), though, exercise increased the PYY3-36, especially in normoxic conditions. In addition, although there was a reduction in the appetite following the two trials, environmental conditions had no significant effect on appetite (p=0.872). Conclusion: Interval exercises increase circulating levels of PYY3-36 and reduce appetite, irrespective of the environmental conditions (normoxia or hypoxia) in which the exercise is performed. 

Keywords: Interval exercise, Hypoxia, Normoxia, HormonePYY3-36, Appetite, Overweight
Full-Text [PDF 304 kb]   (681 Downloads)    
Type of Study: Original | Subject: Exercise
Received: 2015/12/9 | Accepted: 2016/05/17 | Published: 2016/07/16
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forooghi nasab F, Hovanloo F, Ahmadizad S. The Effect of Interval Exercise in Hypoxia on Responses of PYY3-36 and Appetitein Overweight Individuals. Iranian Journal of Endocrinology and Metabolism. 2016; 18 (2) :105-111
URL: http://ijem.sbmu.ac.ir/article-1-2036-en.html
Volume 18, Number 2 (7-2016) Back to browse issues page
مجله ی غدد درون‌ریز و متابولیسم ایران، دو ماهنامه  پژوهشی مرکز تحقیقات غدد درون‌ریز و متابولیسم، Iranian Journal of Endocrinology and Metabolism
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