论文部分内容阅读
通过两次用留置针对广东省田径队 7名优秀男子短跑运动员连续采血 7次 ,观察 1)人体从事间歇性运动过程中血乳酸、乳酸脱氢酶、血气指标的动态变化规律 ;2 )口服谷氨酰胺对人体从事间歇性运动过程中血乳酸、乳酸脱氢酶、血气指标的动态影响。结果发现 :1)在三组间歇运动中每组血乳酸均较前一组有显著性增加。运动后 6小时 ,乳酸就可恢复到运动前水平。LDH的变化趋势与血乳酸相似。血乳酸与血气指标的变化具有高度负相关 (r=- 0 .90 )。伴随着血乳酸的增加 ,血液缓冲能力下降 ;2 )在间歇运动中伴随着血乳酸的增加 ,血液缓冲能力下降。外源性补充谷氨酰胺可以提高间歇运动中LDH活性 ,减少乳酸生成 ,增强血液缓冲能力 ,发挥缓解体内代谢性酸中毒的作用。
Two consecutive indwelling pairs of Guangdong provincial track and field team of seven outstanding male sprinters continuous blood sampling 7 times, observed 1) the human body engaged in intermittent exercise in the blood lactic acid, lactate dehydrogenase, blood gas dynamic changes in the law; 2) The Dynamic Effect of Aminamide on Blood Lactate, Lactate Dehydrogenase and Blood Gas in Intermittent Movement of Human. The results showed that: 1) Each group of blood lactic acid in the three groups of intermittent exercise were significantly increased compared with the previous group. Six hours after exercise, lactate can be restored to pre-exercise levels. The trend of LDH is similar to that of blood lactate. There was a highly negative correlation between BLA and blood gas changes (r = - 0.90). Accompanied by an increase in blood lactate, blood buffering capacity declines; 2) With intermittent exercise accompanied by an increase in blood lactate, blood buffering capacity decreases. Exogenous glutamine supplementation can increase LDH activity during intermittent exercise, reduce lactate production, enhance blood buffering capacity, and relieve metabolic acidosis in vivo.