摘要：Objective:To determine the optimal manipulation parameters in Liu's back tuina therapy for remission-stage cough variant asthma(CVA)in ***:A 5-factor 3-level L18(37)orthogonal design was *** experimental factors and levels were selected:A,the number of times of Rou-kneading Feishu(BL 13);B,the frequency of Rou-kneading Feishu(BL 13);C,the number of times of Tui-pushing in a'介'-like pattern;D,the frequency of Tui-pushing in a'介'-like pattern;E,the intensity of red color after Ca-scrubbing Feishu(BL 13)with salt.A1,A2 and A3 stood for 10 times,20 times and 30 times,respectively;B1,B2 and B3 stood for 200 times/min,240 times/min and 280 times/min,respectively;C1,C2 and C3 stood for 50 times,75 times and 100 times,respectively;D1,D2 and D3 stood for 150 times/min,175 times/min and 200 times/min,respectively;E1,E2 and E3 stood for pinkish,bright red and dark red,respectively.A total of 108 kids with CVA in remission stage were divided into 18 groups using the random number table method,with 6 cases in each *** in the cough score and fractional exhaled nitric oxide(FENO)level were observed after 15-day ***:The cough score and FENO level changed significantly in every group after treatment(all P<0.01).By the effect in improving cough score,the factors were listed as D,B,A,C and E in descending order;the most optimal manipulation parameter combination was group 17(A3B2C1D3E1);the second optimal parameter combinations were group 7(A3B1C2D1E3),group 13(A2B1C2D3E1)and group 14(A2B2C3D1E2).Regarding the effect in down-regulating the level of FENO,the factors were listed as C,A,E,B and D in descending order;the most optimal manipulation parameter combination was group 13(A2B1C2D3E1);the second optimal parameter combinations were group 18(A3B3C2D1E2),group 16(A3B1C3D2E3)and group 14(A2B2C3D1E2).Conclusion:Two most effective manipulation parameter combinations were selected out of 18 different parameter combinations in Liu's back tuina ther