Department of Sports Training, The Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland.
Department of Methodology and Statistics, The Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland.
Nutrients. 2018 Nov 1;10(11):1610. doi: 10.3390/nu10111610.
Anaerobic power and anaerobic capacity significantly influence performance in many sport disciplines. These include prolonged sprints in athletics, swimming, or cycling, and other high intensity intermittent sports, such as soccer or basketball. Considering the association of exercise-induced acidosis and fatigue, the ingestion of potential buffering agents such as sodium bicarbonate, has been suggested to attenuate metabolic acidosis and improve anaerobic performance. Since elite soccer players cover from 200 to 350 m while sprinting, performing 40⁻60 all out sprints during a game, it seems that repeated sprint ability in soccer players is among the key components of success. In our experiment, we evaluated the effectiveness of chronic supplementation with sodium and potassium bicarbonate, fortified with minerals, on speed and speed endurance in elite soccer players. Twenty-six soccer players participated in the study. The subjects were randomly divided into two groups. The experimental group was supplemented with sodium bi-carbonate and potassium di-carbonate fortified with minerals, while the control group received a placebo. The athletes were tested at baseline and after nine days of supplementation. Anaerobic performance was evaluated by the Repeated Anaerobic Sprint Test (RAST) protocol which involved 6 × 30 m max sprints, separated by 10 s of active recovery. Resting, post ingestion and post exercise concentrations of HCO₃ and blood pH were measured as well as lactate concentration. The current investigation demonstrated a significant increase in RAST performance of elite soccer players supplemented with sodium and potassium bicarbonate along with calcium phosphate, potassium citrate, and magnesium citrate ingested twice a day over a nine-day training period. The improvements in anaerobic performance were caused by increased resting blood pH and bicarbonate levels.
无氧能力和无氧耐力对许多运动项目的表现有重要影响。这些项目包括田径、游泳或自行车等项目中的长时间冲刺，以及足球或篮球等其他高强度间歇运动。考虑到运动引起的酸中毒和疲劳的关联，摄入潜在的缓冲剂，如碳酸氢钠，已被建议用来减轻代谢性酸中毒并提高无氧能力。由于精英足球运动员在冲刺时覆盖 200 到 350 米的距离，在一场比赛中进行 40-60 次全力冲刺，因此足球运动员的重复冲刺能力似乎是成功的关键因素之一。在我们的实验中，我们评估了慢性补充碳酸氢钠和碳酸钾（强化矿物质）对精英足球运动员速度和速度耐力的有效性。26 名足球运动员参加了这项研究。受试者被随机分为两组。实验组补充碳酸氢钠和碳酸钾（强化矿物质），对照组接受安慰剂。运动员在基线和 9 天的补充后接受测试。无氧能力通过重复无氧冲刺测试（RAST）方案进行评估，该方案包括 6 次 30 米最大冲刺，每次冲刺之间有 10 秒的主动恢复。测量了休息时、摄入后和运动后 HCO₃ 和血液 pH 值以及乳酸浓度。目前的研究表明，在 9 天的训练期间，每天补充两次碳酸氢钠和碳酸钾（强化磷酸钙、柠檬酸钾和柠檬酸镁）的精英足球运动员的 RAST 表现显著提高。无氧能力的提高是由于静息时血液 pH 值和碳酸氢盐水平的增加所致。
