运动时心肌的乳酸代谢

The metabolism of lactic acid of cardiac muscle during exercise

心肌摄取乳酸的多少与动脉乳酸浓度呈正相关。运动时,动脉乳酸浓度增加,心肌血流量增加,因而心肌摄取氧化乳酸增加;剧烈运动时,当血乳酸浓度大于3-4mM时,乳酸就可能成为心肌有氧代谢的重要产物。

The amount of lactic acid taken in to the cardic muscle is interrelated with the consistency of the artery lactic acid. In sports, the consistency of the artery lactic acid gets thick and the flow of the cardiac muscle blood becomes fast, so the cardiac muscle gets in more lactic acid oxide. When sporting becomes violent and the consistetency of the blood lactic acid may become the main product in the cardiac muscle supersession with oxygen.