Document Type : Research Paper I Open Access I Released under CC BY-NC 4.0 license



The aim of this study was to investigate the effect of omega-3 supplementation with 4 weeks of plyometric training on serum changes of brain derived neurotrophic factor (BDNF) and oxidative stress and their relationship in active men. 28 physical education male students (age 23.21±1.98 year, height 174.25±5.34 cm, weight 66.83±7.49 kg, BMI 20.03±2.25 kg/m2) were randomly divided into four groups including training + omega-3, omega-3, training, control. The training and training+omega-3 (combination) groups performed selected plyometric training for 4 weeks in 2 or 3 sets with 6 to 12 repetitions. Also, supplementary (omega-3) and combination groups daily consumed 2 gr. omega-3 and 1 gr. starch (as a capsule) 3 times per day after their meals. Training group received placebo capsules (starch with similar weight combined by saffron to provide color for an appearance and taste similar to omega-3 capsules). ANOVA was used to examine inter-group differences and Pearson correlation coefficient was applied to investigate the existence of any relationships among variables. A significant increase was observed in BDNF serum levels in combined and supplementation groups compared with the control group (P=0.001, P=0.004 respectively). Serum levels of MDA decreased significantly in supplementation group compared with control group (P=0.002). Also, serum levels of SOD in training group increased significantly compared with control group (P=0.042). Likewise, only a correlation observed was observed between MDA and SOD in supplementation group (P=0.048, r=0.759). Regular consumption of omega-3 supplementation combined with plyometric training increases BDNF and reduces MDA. Consequently, it can be used as a beneficial method to increase the health of the nervous system and to resist oxidative stress induced by exercise training.


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