Exercise fatigue is a physiological phenomenon not only for athletes, but also for astronauts. It is vital for athletes with hard training and astronauts with the heavy exercises for the mission in manned space flight to know how to solve the exercise fatigue. This article reviewed current commonly used TCM protective measures against fatigue.

Objective To investigate effects of Taikong Yangxin Prescription on left ventricular pump and contract function in rat after tail suspension.Methods Twenty four male Sprague-Dawley(SD)rats were randomly and divided into three groups:(A)normal control group,(B)tail-suspension group and(C)Chinese herb compound group(taking Taikong Yangxin Prescription and tail suspension).The left ventricular functions in rats were examined by echocardiography separately after 7 d and 28 d tail-suspension.Results After 28 d of tail-suspension,as compared with the tail-suspension group,LVDD in Chinese herb compound group increased significantly(P

Object To study the effects of active fraction L.F04 from the ground part of Lycopus lucidus Turcz. var. hirtus Reg. on platelet aggregation and thrombosis formation and investigate its mechanisms of promoting blood circulation and removing blood stasis. Methods The effects of L.F04 on platelet aggregation induced by ADP in vivo, thrombosis of artery vein side road and thrombus formed in rotary loop in vitro were examined, the rat model of blood stasis made by injecting high molecular weight dextran (HMWD) was used. Results L.F04 0.408 and 0.204 g/kg evidently inhibited the ADP induced increase of platelet maximum aggregation rate in vivo in HMWD model, with a concentration dependent manner. Compared with the control group, the thrombus weight in rat model of blood stasis was increased significantly and the length of thrombus was shown an increasing trendency. L.F04 0.408 and 0.204 g/kg both shown the anti thrombosis effect. L.F04 0.408 g/kg showed better effects of lessening the thrombus dry weight and wet weight. Both L.F04 0.408 and 0.204 g/kg could inhibit the thrombosis of artery vein side road, the inhibition rates are separately 27.41% and 27.14%. Conclusion L. lucidus var. hirtus F04 could significantly inhibit platelet aggregation and thrombosis formation.

Objective To develop a Traditional Chinese Medicine(TCM)syndrome diagnosis scale suitable for evaluating the overall health status of participants in long-term simulated weightlessness experiments,and preliminarily evaluate its reliability and validity.Methods Based on the understanding of the pathogenesis of TCM in different stages of long-term manned spaceflight,a scale was developed through literature research and expert consultation.Test-retest reliability and internal consistency coefficient were used to test the reliability of the scale.Item analysis and factor principal component analysis were used to evaluate the validity of the scale,and a rotating component matrix was used to analyze the correlation between each item and dimension using 36 volunteers in a 90 days head down bed rest experiment as the research subjects.Results The scale contains eight dimensions and 57 items.The reliability analysis showed that the correlation coefficient of the total score of the scale for the first and second tests of 30 participants was 0.889,indicating high stability of the scale.The Cronbach coefficient of the scale was 0.934,indicating very good internal consistency.The split half reliability after correction was 0.858,indicating a high reliability of the scale.The validity analysis showed that the difference between the high score group and the low score one for each of the 57 items was statistically significant(P<0.01),and the Pearson correlation coefficient between each item and the total score of the scale was greater than 0.4(P<0.001).The cumulative contribution rate of 8 common factors extracted using principal component factor analysis was 55.293%,and the results of rotating component matrix analysis,after applying TCM theory and expert feedback,had a coincidence of up to 87.5%with the initial 8 dimensions,indicating good structural validity of the scale.Conclusion The scale has good reliability and validity,and can diagnose TCM syndromes.It is suitable for long-term simulated weightlessness experiment and provides an objective and quantitative new method for evaluating the subjective feelings of participants.