[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Contact ::
:: Volume 13, Issue 1 (5-2011) ::
2011, 13(1): 90-97 Back to browse issues page
Fat and Carbohydrate Oxidation During an Exhaustive Incremental Exercise in Professional and Elite Amateur Cyclists
Mohamadreza Hamedinia Dr , Mohamad Shabani Dr, Mehdi Zarei Mr, Jean Medelli Dr
sabzevar tarbiat moalem university , mrhamedi1350@gmail.com
Abstract:   (30162 Views)

Introduction: The purpose of this study was to compare fat and carbohydrate oxidation at different intensities of exercise until exhaustion, between professional and elite amateur cyclists. Materials and Methods: Forty-two professional cyclists (27.3± 4.2 yr) and 31 elite amateur cyclists (23.7±3.6yr) performed incremental exercise tests on a bicycle ergometer with 50 Watt increments, every third minutes until volitional exhaustion. Heart rate, the average volume of oxygen consumption, production of carbon dioxide and respiratory exchange ratio were measured during the rest time and the last 3 minutes of the exercise with working loads of 200, 300 and 400 Watts. Results: The results showed that there was no significant difference in RER between the two groups at rest time and intensity of 200w, but at intensities of 300w and 400w, RER was significantly lower in professional cyclists (P=0.01). There was no significant difference between professional and elite amateur cyclists regarding the rate of fat and carbohydrate oxidation at different intensities of exercise. Also, there was no significant difference in the percentage of fat and CHO oxidation during the trials, between the two groups. With increasing exercise intensity, the fat oxidation rate decreased significantly (p=0.001) however between rest mode and intensity of 200w, the difference was not significant. Conclusion: The findings of present study suggest that although there is a little difference in fat and carbohydrate oxidation between professional and elite amateur cyclists, this small difference and the small amount of carbohydrates saved in professional cyclists leads to their superior performance.

 

Keywords: Oxidation, Fat, Carbohydrate, Exercises, Cyclists, Professional, Elite Amateur
Full-Text [PDF 305 kb]   (4731 Downloads)    
Type of Study: Original | Subject: Exercise
Received: 2010/06/20
Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

hamedinia M, shabani M, zarei M, Medelli J. Fat and Carbohydrate Oxidation During an Exhaustive Incremental Exercise in Professional and Elite Amateur Cyclists. Iranian Journal of Endocrinology and Metabolism. 2011; 13 (1) :90-97
URL: http://ijem.sbmu.ac.ir/article-1-976-en.html


Volume 13, Issue 1 (5-2011) 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
Persian site map - English site map - Created in 0.05 seconds with 33 queries by YEKTAWEB 3937