Effect of concurrent training on serum leptin concentrations in overweight young adults

• Published in: International sportmed journal for FIMS Vol. 13; no. 2; pp. 69 - 75
• Main Authors: Dantas, Estelio H.M., Cruz, Iara, De Sa Rego Fortes, Marcos, Rosa, Guilherme, De Mello, Danielli B.
• Format: Journal Article
• Language: English
• Published: International Federation of Sports Medicine 01.06.2012
• Subjects: Adipokines; Adipose tissue; Adults; Aerobic exercise; Analysis; Blood; Exercise (intensity); Hormones; Leptin; Obesity; Promotion; Resistance exercise; Rest; Youth
• ISSN: 1528-3356; 1528-3356

Background : Some factors can exert influence on leptin concentrations, such as physical exercise. Objective : This study aimed to analyze the acute effects of concurrent training on leptin levels in overweight young adults. Methods : This study used an experimental methodology which included 20 volunteers of both sexes, randomly divided into a concurrent training group (CTG n=10) and a control group (CG n=10). Blood collection was performed in individuals at rest after fasting for 12 hours, and leptin levels were analyzed by radioimmunoassay before and immediately after training. A Two-way ANOVA was used for statistical analysis with a significance level of p <0.05. Results : The CTG group showed no significant reduction (∆ = - 9.91%; p = 0.98) in leptin after training (14.53ng/mL ± 6.79 pre training and 13.09ng/mL ± 8.46 post-training). The CG group showed a decrease in leptin from 27.09ng/ml ± 10.70 to 21.49ng/mL ± 9.44, but this difference was not significant (∆% = -20,67; p = 0.51). Conclusion : A single concurrent training session with the characteristics of modalities, exercise intensity and length of this study did not promoted significant changes on leptin levels in overweight young adults.