Effect Of Cynomorium Decocta Upon The Radical And Carbohydrate Metabolism Of Exercise Rats

Many studies show that exercise can cause body to produce lots of free radicals that will attack cellular membrane system and result in the damage to the cell. Meanwhile, peroide will create more free radicals which can attack other double linkage and cause chain reaction. Cynomorium decocta is a natural antioxidant which is efficient and non-poisonous. It contains Ve,β-carotene, and other natural antioxidiants such as a flavone and tannin compound. The purpose of this experiment is to discover the effect of Cynomorium decocta on exercise rats free radical defense system, exercise performance, and carbohydrate metabolism, in order to deduce the potential function on antifatigue and improve sport ability so as to provide experimental basis for the utilization of the cynomorium in sports medicine and the development of health drinks and food and on the part to athlete meal supplement in future.Objects of the study are Kunming rats (male) and an endurance exercise model is set up by progressive load of treadnill training. According to requirements of experiment, rats are divided into four groups. They are the control group,the control group with cynomorium decocta,the exercise groupandthe exercise group with cynomorium decocta. After seven weeks' training, SOD,MDA,T-AOC in cardiac muscular tissue, hepatic tissue, and musculus quadriceps femoris are tested; LA,LDH,BUN of serum and glycogen in hepatic tissue and musculus quadriceps femoris are tested.Results of the experiment:(1)After seven weeks' intensive endurance training, Hb of rats taking Cynomorium decocta is increased (P<0. 01), which indicates that Cynomorium decocta can promote the decrease of Hb after intensive endurance training and promote aerobic exercise performance. (2) BUN of white rats taking Cynomorium decocta is obviously less than that of the control group, which shows that Cynomorium decocta can slow down rats' metabolism rate of proteolysis ( P<0.01) , hold myotome and delay exercise-induced fatigue. (3)Cynomorium decocta can increase the carbohydrate reserve of white rats (P<0. 05), guarantee the supply of energy to central nervous system and muscles, delay exercise-induced fatigue. and promote exercise performance. (4)Cynomorium decocta has strong actions on antioxidation and clearing free radical in rats' cardiac tissue, hepatic tissue, and muscles. Conclusions:Cynomorium decocta has strong actions on antioxidation and clearing free radical. At the same time, it can increase the sugar reserve of rats by intensive endurance exercise. In addition, it also can improve the harmful effects caused by intensive endurance exercise on body and promote the capability of exercise.