Effects of magnesium supplementation on the central and peripheral fatigue indices of active individuals following an anaerobic activity

Introduction: In this study we investigated the effect of magnesium supplementation on central and peripheral fatigue indices in active individuals following a period of anaerobic activity. Materials and Methods: In this way, 16 male university students have voluntarily participated in this semi-experimental study. The subjects were randomly divided into 2 groups, supplementation and placebo. In this research the Wingate pre- and post-tests were performed. Blood sampling was done at 4 stages, before and after each test. Lactate, calcium, phosphorous, potassium and magnesium in blood samples were measured. The experiment was performed on Ergometer bicycle and the electrical activity of right leg muscles was recorded by EMG simultaneously. Results: The results indicated a significant decrease (p<0.05) in the electrical activity of quadriceps in the supplementation group in comparison with the placebo group. However, the significant reduction in lactate, potassium, magnesium and fatigue indices, and also the time reaching the peak performance had only been observed in magnesium supplemented group (p<0.05). All the while, the calcium level increased in both groups Conclusion: Magnesium consumption can be effective in postponing both central and peripheral fatigue during intense anaerobic activities.