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随着体育运动的发展,体育科学已逐渐渗入运动训练中,其中,血乳酸浓度的测定也越来越受到人们的重视。人们发现,运动后的血乳酸浓度不仅反映了运动员的机能状况,还由于血乳酸是糖无氧代谢的产物,血乳酸浓度的变化直接反映了体内糖酵解供能系统的能力,所以,血乳酸的测定可以为教练员安排训练强度提供客观依据.尤其在田径、游泳等周期性项目中更具有实用价值。乳酸在体内的代谢人体内,糖的分解代谢主要有有氧氧化、无氧酵解及磷酸戊糖旁路三种形式,其中与运动有关的是有氧氧化与无氧酵解(见图).糖的有氧氧化是指葡萄糖或糖原在正常有氧条件
With the development of sports, sports science has gradually infiltrated into sports training, among them, the measurement of blood lactate concentration is more and more people’s attention. It has been found that the blood lactate concentration after exercise not only reflects the performance of the athlete, but also because the blood lactate is the product of anaerobic glucose metabolism. The change of the blood lactate concentration directly reflects the ability of the in vivo glycolysis energy supply system. Therefore, blood The determination of lactic acid can provide an objective basis for coaches to arrange training intensity, especially in cyclical projects such as athletics and swimming. Lactic acid metabolism in the human body, the main catabolism of carbohydrate aerobic oxidation, anaerobic glycolysis and pentose bypass three forms, of which the movement is related to aerobic oxidation and anaerobic glycolysis (see photo) Aerobic oxidation of sugar refers to the normal aerobic condition of glucose or glycogen