| Background Recently, with the development of society, sports medicine has gradually been focused by sports and medical circle, which not only can prevent the sports diseases to ensure the atheletes, but also offer evidence for the development and application of medicine. In morden society, many researches of exercise-induced fatigue concertrated on sports circle, but actually, we should keep our eyes on the common people, because exercise-induced fatigue disturbe a lot of common people. Fatigue relief is not only required by sports man, coaches, but also needed by common people.The fatigue is always caused by large consumption of energies which are not able to supplement promptly. The energy consumption include high-energy phosphoric acid, blood sugar and glycogen. In intensive exercise, the human body is supplemented by ATP-CP. The decrease of ATP-CP is the main reason of fatigue. During the moderate exercise, the human body is supplied by aerobic oxidation. So the long-term exercise always consumes large sugar, which will affect the activity of nervous system and brain, and induce fatigue finally.On the other hand, the fatigue can also be caused by accumulation of metabolic products among which lactic acid is the major product. Lactic acid is the product of glucose under oxygen deficit condition. The accumulation of lactic acid can inhibit the glycolysis and retard the synthese of ATP. Ammonia also has close relationship with fatigue. The accumulation of ammonia can affect the coordination and control ability of exercise. Generally, short-term and severe exercise can disturb the balance the ammonia, and the physiological property of muscle and cell can be disturbed. So the fatigue comes into being.Although there was no the name of fatigue in classic works, the observation of fatigue is over 2,000 years. Most the scholars believe that exercise-induced fatige belongs to the scope of overstrain, asthenic disease and overexertion.TCM holds that qi is the commander of blood, while blood can carry qi. Qi and blood are the foundation of activity. Overlabor can damage qi and blood, so TCM often treat qi and blood together. Besides, exercise-induced fatigue also has relationship with the function of zang-fu. TCM believes that the spleen the acquired foundation and the origination of qi and blood. Spleen controls the four limbs and muscle which is related to exercise. The kidney hides the essence, controls the bone and marrow, and is often considered as the congenital foundation, the origination of power. The deficiency of kidney essence and marrow can affect the bone development which is easy to be induced to fatigue. The energy of activity derives from the condition of liver. The quantity of liver blood and its blood-regulation function can affect the body. Normal liver function, abundant liver blood can nourish the sinews, make the exercise forcefully, smoothly and persistently. Deficient liver blood induce the malnurition of sinew, so the exercise will become slow and easy to be fatigue.TCM believes that ear has close relationship with zang-fu, channel and qi-blood. Auricular acupoint can regulate the balance of neural system, tranquilize the mind and relieve pain, dredge channel and collateral, regulate yin-yang and qi-blood. So the auricualr therapy is widely applied in internal, external, gynaecology, pediatrics and ENT. Such as neurasthenia, melancholy, anxiety, tention, fatigue even disease caused by virus, bacteria and so on.How to promote the fatigue relief totally and quickly is a problem which has been explored by human being. People have found lots of ways to promote the recovery among which traditional Chinese medicine turned out to be the hot field. The ways of TCM take advantage of their special efficacy and obtain ideal effect.Objective observing the clinical efficacy on treating exercise-induced fatigue of healthy university students with auricular therapy. Exploring the mechanism of auricular therapy. Summing up a set of simple, effective therapy to relief exercise-induced therapy.Method all the students randomly devided into five groups as follows: control group, auricular points 1 of left ear, auricular points 1 of right ear, auricular points 2 of left ear, auricular acupoints 2 of right ear. The test use single blind method (single blind to all the experimenters)All the students were required finished 800m running test with all their strengths every day and the therapeutic course lasted one week. The aucricular therapy was exerted after the first exercise. Auricular points 1 was composed of internal genital(TF2), gallbaldder(CO11), esophagus (CO2), eye(LO5), large intestine(CO7), stomach(CO4), while auricular points 2 include heart (C015), sympathesis(AH6), trachea(C016), lung(COH), liver(C012), kidney (C010), spleen(C015). Control group had no any intervention.Instant test of heart rate and blood pressure were examined before the first exerise, after the first exercise and the last time exercise. Keep the morning urination of the first time exercise and the the day after last time exercise as sample and test the lactic acid, urea, pyruvic acid, free acid. Instant subjective grade was made according to RPE table made by Swedish expert Bory.All the auricular application were exerted by graduate students of acupuncture after cleaning the ear completely. Each student occupied at most 5 minutes to accept the therapy and they were also required press the acupoints each morning and 30 minutes before exercise. At the rest time of each day, they should press the acupoints 3-5 times,30-60 second each time untile the ear become light red and feels obvious swelling and soreness.Results comparing to control group, the students's heart rate and blood pressure decreased in auricular points 1 of right ear, auricular points 2 of left ear, auricular acupoints 2 of right ear, auricular acupoints 2 of letf ear.There was statistic difference. Auricular acupoints 2 decreased more than auricular acupoints 1, but there were no statistic difference between auricular acupoint 1 of left and right ear, auricular acupoint 2 of left and right ear.After the therapeutic course, the students's lactic acid, BUN, pyruvic acid, free acid decreased in the four therapeutic groups. Comparing to the control group, there was statistic difference. But comparing to auricular acupoints 1 groups, the the lactic acid and urea of auricular acupoints 2 groups decreased more and much closer to the normal condition. The difference has statistic significance. While the differences of pyruvic acid and free acid between auricular acupoints1 and 2 have no statistic significance.There were no statistic difference in pyruvic acid, free acid, lacitc acid and urea between auricular acupoint 1 of left and right ear, auricular acupoint 2 of left and right ear in the morning after the last exercise.There was statistic difference in RPE between auricular acupoints 1 and 2 at the last time exercise.Conclusion auricular therapy can increase the students'hypoxia tolerance and constitution, so the therapy raise the tolerance of exercise-induced fatigue.Auricular therapy can make a clear clinical effect on relief exercise-induced fatigue because it can promote the elimination of lactic acid, urea, pyruvic acid, free acid, and make them close to the level in normal condition. But due to the recovery has the characteristic of phase and heterochrony, some substance elimination become slowly.Different auricular acupoints can affect the clinical efficacy. Auricular 2 groups selected the acupoints which have close relationship with activity, so they got clear efficacy, while auricular 1 groups selects the acupoints which have non-close relationship with activity, they also got some efficacy possiblely due to auricular acupoint is nonspecific and mutil-channel sensation were induced by one point. There was no efficacy difference between left and right ear who share the same auricular aucpoints.But because the stimulation of auricular theray is not very large, some lab exam indexes didn't decreased ideally. So we have to improve the auricular therapy, therapeutic course, stratified random or further research in order to select one more effective and convenient way.In this test, we observed ratings of perceived exertion and some bio-chemical indexes to measure the efficacy. Some other examinations, such as morphology test, length of lower leg and weight, muscle force, lectrocardiogram, electromyogram, and blood indexes, such as lactacidemia, hemoglobin, testosterone, cortisol, humoral immunity, cellular immunity have not been detected. We selected the college students as our examinee, while the fatigue has close relationship with age, sex, exercise level, mind condition and exercise condition. So it need further research.
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