The Effect of Magnesium Sulfate Supplementation on Fatigue Threshold Electromyography (EMGFT), Lactate and Time to Exhaustion (TTE) following Acute Aerobic Exercise of Exhaustive Treadmill Running in Sedentary Collegiate Men

The aim of this study was to investigate the effect of magnesium sulfate supplementation on fatigue threshold electromyography (EMGFT), lactate and time to exhaustion (TTE) following a session of aerobic exercise (exhaustive treadmill running) in sedentary collegiate men. For this purpose, 16 sedentary male students (mean age: 25.25 ± 1.18 years, height: 176.18 ± 4.75 cm, weight: 79.51 ± 25.65 kg) were randomly divided into supplementary (n=8) and placebo (n=8) groups. Blood samples were collected in four phases: before and immediately after Bruce test in pretest and posttest. Data were analyzed by repeated measures test, covariance analysis and independent and dependent t tests at P=0.05. The results showed that TTE increased (5.44%) in magnesium sulfate group after the supplementation (P0.05). The results of this study indicated that the supplementation of magnesium sulfate lowered the slope of muscle EMGFT activity following a session of exhaustive treadmill running.