Background & Objective:  The design objective of the research was to investigate a comparison between the effects of sodium bicarbonate (NaHCO₃) different loading in high-intensity intermittent activity on fatigue parameters of Soldier. 30 s Soldier s accomplishment Wingate test in two situations: NaHCO₃ (SB) consumption and placebo.
Materials and Methods: The SB (0.3 g·kg^-1 of body mass) or the placebo was ingested 60 min before the training in Solution 250ml. before and After the Wingate test, the blood sample was collected.  All parameters were compared using two-way repeated measures ANOVA, followed by Tukey post-hoc test, the significance level was set at 5%.
Results: lactate concentration in Wingate test after SB (15.62 ± 5.1 mmol·l^-1) supplementation was significantly higher than placebo (12.17 ± 4.39 mmol·l^-1) (P<0.05). No difference was found between SB and placebo for her number. Performance in supplementation group was significantly higher than placebo (p<0/05).  
Conclusion: NaHCO₃ didn't improve performance in Soldiers, but supplement consumption induced increase ph and bicarbonate concentration.