| Abstrakt: |
Aim: Recently, researchers have been paying attention to the study of supplements that can facilitate fat oxidation in addition to sports activities. The aim of the present study was to investigate the effect of short-term consumption of green tea on metabolic cost and substrate oxidation during acute exercise with Fatmax intensity in healthy overweight or obese men. Methods: The subjects of this research were 15 overweight and healthy men who were cross-examined in one group. First, on the treadmill connected to the gas analyzer, a sports protocol was performed at a speed of 3.5 km per hour, a slope of 1%, for 3 minutes, and after a 2-minute break (execution of the first stage), the activity was performed at a speed of 4 km. per hour with a slope of one percent (second stage); and then at a speed of 5 kilometers per hour (third stage); and then at a speed of 6 km per hour (fourth stage); And finally, it was implemented at a speed of 6.5 km per hour (during 4 minutes). Next, the participants took green tea (with a dose of 1000 mg in day) for a week and came to the laboratory for the second time. After that, they consumed placebo twice a day for a week and came to the laboratory for the third time. For each person, the maximum amount of fat oxidation (MFO) and the intensity of activity at which MFO occurs (Fatmax) were determined. The results were extracted using repeated measurement analysis of variance and Bonferroni's post hoc test at a significance level of p≤0.05. Results: Between the amount of fat oxidation, respiratory exchange ratio, oxygen consumption and energy expenditure in two cases of 7 days green tea consumption and placebo; there was no significant difference (p>0.05). Conclusion: Short-term consumption of green tea before acute exercise at Fatmax intensity has no effect on energy expenditure, oxygen consumption and fat reduction, and its consumption period and dosage should be studied further [ABSTRACT FROM AUTHOR] |
