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The effect of caffeine consumption on the time to reach fatigue and oxygen consumption index in active men | ||
| New Approaches in Exercise Physiology | ||
| مقاله 12، دوره 5، شماره 10، اسفند 2023، صفحه 239-254 اصل مقاله (857.98 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22054/nass.2024.82688.1167 | ||
| نویسندگان | ||
| kamal ranjbar* 1؛ Ebrahim Zarrinkalam2 | ||
| 1Department of Physical Education and Sport Science, Bandar Abbas Branch, Islamic Azad University, Bandar Abbas, Iran. | ||
| 2Department of Physical Education and Sport Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran. | ||
| چکیده | ||
| Purpose: Caffeine is a widely used and available physiological stimulant that is effective in sports performance. The purpose of this study was to investigate the effect of caffeine consumption and exercise on fatigue and cardiovascular responses in active men. Methods: The statistical population of this research was made up of all male students of physical education in the age range of 19 to 27 years with at least three activity sessions per week. 15 of them were selected as subjects and they performed the exercise protocol in two stages (the first stage by eating placebo and the second stage by eating coffee). The exercise protocol was the Bruce test, which was performed separately on two days with a 5-day interval. Subjects consumed 5 mg/kg of coffee in the first session under placebo conditions, and in the second session, subjects consumed 5 mg/kg of coffee one hour before the test. Blood samples were collected before taking the placebo or caffeine and after the test. The descriptive statistics method was used to describe the data, determine the mean and standard deviation of the data, and the correlated t-test was used in the statistical inference section to analyze the data. Statistical analysis was used with SPSS version 26 software with a significance level of less than 5 percent. Results: The results of the correlated t-test showed that the consumption of caffeine supplements significantly increased the time to reach fatigue (p=0.023) and the index of oxygen consumption after exercise (p=0.041). Conclusion: In general, it can be said that active men can use 6 mg/kg of caffeine supplement one hour before sports activity to improve the time to reach fatigue. | ||
| کلیدواژهها | ||
| caffeine؛ fatigue؛ active men؛ oxygen consumption index | ||
| مراجع | ||
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