Effect of four weeks concurrent training (aerobics-resistance) and caffeine supplementation on body composition and lipid profile in overweight girls

Introduction: performing exercise and applying of food strategies is one of the healthy and low risk approaches to overweight treatment. In this case, some researchers believe in that lipotropic supplement such as caffeine with or without endurance and resistance physical exercise may cause to improvement of cardiovascular risk. However, there is not comprehensive studies in the case of effectiveness of concurrent training of aerobics and resistance training and caffeine supplementation. Anyway, due to the remained contradictions and ambiguities, the present study conducted in order to determine the effectiveness of four weeks concurrent training with and without caffeine supplementation on body composition and lipid profile indexes in the overweight girls. Methodology: 20 overweight volunteer girls which are students in University of Tabriz (20-30 years old, BMI=24/90-30) participated in this random, double-blind study. Subjects were divided to two groups (n=10) of (concurrent training + caffeine supplementation) and (concurrent training + placebo). Primary measurements, blood sampling and needed coordination were conducted in order to not using drug and performing physical exercise, ten days before starting training protocol and supplementation. 24 hours after latest day of concurrent training of aerobics and resistance training and supplementation and second blood sampling were conducted. All data expressed as mean ± SD at significance level of less than 0.05. Results: the findings indicated, there was a significant decrease in waist Circumference and fat percentage in both groups after four weeks of concurrent training (α< 0.05). There was significantly improvement on the waist Circumference, fat percentage, TC after concurrent training (aerobics-resistance training) with caffeine supplementation (α< 0.05). In contrast, in the serum triglyceride, LDL and HDL, there was no significantly changes after training and caffeine supplementation (α>0.05). But there was not significantly difference between caffeine and placebo groups (α>0.05). Conclusion: according to the findings it can be concluded that the concurrent training (aerobic-resistance training) alone and in the interaction with caffeine supplementation improves body composition indices and cardiovascular disease risk factors.