Influence of sodium bicarbonate supplementation on anaerobic performance in football players
Abstract
Footballis characterized as an intermittent physical activity, with requests for various energy sources. Several studies have investigated the ergogenic action of buf fering substances in intermittent exercise in order to delay fatigue. Objective: To determine whe ther supplementation with sodium bicarbonate enhances anaerobic performance in football players of a professional team. Methods: 30 football players maletested for anaerobic power Baker on two non consecutive days. They ate 0.3 g•1kg of body weight of sodium bicarbonate (NaHCO 3) or placebo (2 g ofNaCl),in each of the experimental procedures 90-120 min before testes. The variables analyzed were: blood lactate, rating of perceived exertion (PSE) and fatigue index (FI). Results: No significant difference in blood lactate concentration. The PSE and the FI were significantly lower (p <0.05) after ingestion of NaHCO3. Discussion: The results obtained were similar to studies usings upplementation of alkalizing substances in anaerobic exercises. Conclusion: NaHCO3 supplementation was shown to bean efficient method to improve the performance of repeated sprints in football players.
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