【作者】 肖勇；

【导师】 吴纪饶；

【作者基本信息】 江西师范大学 ， 体育教育训练学， 2004， 硕士

【摘要】 银杏为银杏科银杏属植物，是我国特产。属于距今2亿多年前的中生代侏罗纪时期出现的裸子植物，为第四纪冰川之后仅在我国幸存的当今世界上最古老的树种，历来有“活化石”之称。银杏叶中含有黄酮类、萜内酯类以及少量的多酚类、生物碱、长链醇、酮类、及微量元素等主要化学成分。国内外的许多专家、学者对其药理作用进行了大量的研究，并取得了丰硕的成果。目前研究表明，银杏叶提取物(EGb)的药理作用主要表现在：改善血管功能、促进血液循环(包括微循环)；清除自由基；促进代谢；抗血小板活化因子(PAF)；保护机体组织；耐缺氧等几个方面。 本文根据银杏叶提取物(EGB)的药理作用，通过对大鼠连续10天服用EGB后，实施力竭游泳运动实验，观察银杏叶提取物(EGB)对大鼠运动能力的影响，同时通过血液流变学指标测量与分析，探讨银杏叶提取物的抗运动性疲劳的作用。为进一步开发和利用银杏资源、拓展银杏叶提取物在运动训练领域的应用提供实验依据。 本研究发现： 1．服用EGB大鼠力竭运动能力明显优于运动对照组，具有非常显著性差异(P＜0.01)； 2．服用EGB大鼠全血黏度和血浆黏度指标比安静对照组有显著升高，但较运动对照组低，且差异显著(P＜0.05)； 3．服用EGB大鼠红细胞聚集指数、红细胞刚性指数与安静对照组比较有所升高，但较运动对照组低，且差异显著(P＜0.01)； 4．服用EGB大鼠血沉、血沉K值、血红蛋白浓度及红细胞压积与安静对照组比较呈显著性增高，但和运动对照组之间差异不显著。更多还原

【Abstract】 A ginkgo, is a special product of china It belongs to gymnosperm which appeared in Jurassic period of Mesozoic era ouer 200,000,000 years ago.Inaddition, it is now a kind of the oldest tree all over the world, surreving only in China after the glacier of the Quaternary period, and it is also called Activated fossil all through the ages Gingko leaves contain such main chemical composition as brass,terpence, a small amount of phenet, alkaloid, terpence and ketone and trace element Many experts and scholars at home and abroad have made a large number of studies on the pharmacological effect of gingko leaves and scored great successes The present research has shown that the pharmacological effect of Gingko leaves lie mainly in improving the function of blood vessel, accelerating blood circulation (including microcirculation ),eliminating free radical,promoting metabolism.resisting PAF,protecting organism and resisting lack of oxygen and so forth.This thesis, according to the pharmacological effect EGB,aims to observe andresearch the change of rats’ sporting ability by making exhausted swimming exeperiments on rats after the rats take EGB for 4 weeks, and go further into the effect that EGB has on improvement of rat’ s sporting ability and resistance to fatigue, based on the norms ,mostin use on hemorheology, which offers reference to further exploiting gingko resources and oppering up the sports-training area where EGB is applied.更多还原