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A Study on Cortisol Plasma Changes in Endurance Exercises
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Abstract: (20778 Views) |
| Abstract Introduction: There is an increase in cortisol level the most important hormones in fat metabolism during exercises. Since the cortisol level in different times of a day is variable, and we have not more documents about the cortisol- levels in endurance competitions in Iran, this study was considered and performed. Methods & materials: In a cross-sectional study, 25 endurance runner men of 18-25 years old with 25 non- athlete men were selected. The cortisol and TG level via ElISA test in morning and evening were analyzed. T- test was used for statistical data analysis and P< 0.05 was considered as significant. Results: The morning cortisol level in athletes was 25 ± 1.1micg/dl and in evening was 12±1.5 micg/dl. The level in the control group in the morning and the evening were 11±2.7 micg/dl and 3±1.4 micg/dl respectively. The TG levels in athletes in morning and evening were 80±6 micg/dl and 162±12 micg/dl respectively. The TS levels in morning and afternoon in control group were 150±25 micg/dl and 200±34 micg/dl respectively. All the differences were statistically significant. Conclusion: There is the most fat burning in endurance exercises including endurance running because of the higher levels of cortisol in the morning in contrast to evening. |
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| Keywords: Endurance exercise, Runner, Cortisol, Triacyleglycerole, Morning, Afternoon. |
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Full-Text [PDF 690 kb]
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Type of Study: Research |
Subject:
General
Received: 2009/01/28 | Published: 2006/07/15
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