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Effects of oral lactate consumption on metabolism and exercise performance.

机译:口服乳酸摄入对代谢和运动表现的影响。

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Study of lactate metabolism has revealed that orally consumed lactate is used as an energy substrate either directly by oxidation or by conversion to glucose. Disposal of lactate by oxidation or gluconeogenesis consumes protons and can fortify blood bicarbonate levels temporarily and increase pH. These characteristics have led to investigations of lactate consumption as an energy substrate and as a buffering agent. Evidence has revealed no effects of lactate consumption on time to exhaustion during low- to moderate-intensity exercise, suggesting that it is ineffective as an energy supplement. Lactate ingestion has been shown to increase blood pH and bicarbonate levels and increase time to exhaustion in short, high-intensity work bouts. Future work should focus on determining optimal doses of lactate, temporal relationships between doses and exercise, and the efficacy of lactate as an ergogenic in different types of high-intensity exercise.
机译:乳酸代谢研究表明,口服消耗的乳酸直接通过氧化或转化为葡萄糖被用作能量底物。通过氧化或糖异生来处理乳酸会消耗质子,并能暂时强化血液中的碳酸氢盐水平并增加pH。这些特征导致对作为能量底物和缓冲剂的乳酸消耗的研究。有证据表明,在中低强度的运动中,食用乳酸对精疲力竭没有影响,这表明它不能作为能量补充剂。摄入乳酸会增加血液的pH值和碳酸氢盐水平,并增加短暂,高强度工作周期的疲劳时间。未来的工作应侧重于确定最佳的乳酸剂量,剂量与运动之间的时间关系以及乳酸作为不同类型的高强度运动中的人为产生力的功效。

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