摘要
Objective:To explore the optimal thermal effect parameter combination of An-pressing manipulation based on the pressing force, time and frequency, and to compare the thermal effect differences between the rhythmic and the continuous An-pressing manipulations. Methods:Three levels of light, moderate and heavy pressing forces were determined according to the An-pressing forces of the clinical tuina physicians;the pressing time and frequency parameters were determined according to the literatures about An-pressing manipulation. The volunteers were stimulated by the homemade An-pressing manipulation stimulator on the right Xinshu (BL 15), and then the three-factor and three-level orthogonal tests were carried out according to the test sequence specified by the L9(34) orthogonal table, and the temperature before and after pressing was recorded by an infrared thermal imaging system to screen the best parameters for the thermal effect of the An-pressing manipulation, thus to determine the optimal pressing parameters. The optimal parameters were then used for both continuous and rhythmic An-pressing manipulations to stimulate the bilateral Xinshu (BL 15). The temperature changes after pressing and the duration of the thermal effect (temperature difference ≤0.5℃ on both sides) were recorded by the infrared thermal imaging system, to explore the differences in the thermal effects of different An-pressing manipulations. Results:Among the three factors of pressing force, time and frequency, the influences of different pressing forces on temperature were significantly different (F=32.843,P=0.030), and the influence of 2.5 kg pressing force was the most significant;the effects of different pressing time on temperature were significantly different (F=54.102,P=0.018), and the pressing time of 7.5 min was the most significant;the influences of different pressing frequencies on temperature were not statistically significant (F=2.181,P=0.314), though the influence of 10 times/min pressing frequency was the largest. The influenc
目的:从力度、时间和频率三方面探索按法热效应的最佳参数组合,并据此比较节律性按法和持续性按法热效应的差异.方法:以临床推拿医生按法力量值,确定力度轻、中、重三个水平;参考有关按法的文献,确定时间和频率参数.用自制按法刺激器对志愿者右侧心俞穴进行按法刺激,然后按照L9(3^4)正交表规定的试验顺序进行三因素三水平的正交试验,并以红外热像仪记录按压前后温度,对按法热效应最佳参数进行筛选,以确定最佳操作参数.再以此为参数,分别以节律性按法和持续性按法刺激双侧心俞穴,用红外热像仪记录按压前后温度变化以及热效应持续时间(两侧温差≤0.5℃的时间),探索按法不同刺激方式热效应的差异.结果:在力量、操作时间和频率三个因素中,不同力量对温差的影响有显著性差异(F=32.843,P=0.030),2.5kg的力量影响最显著;不同操作时间对温差的影响有显著性差异(F=54.102,P=0.018),7.5 min的操作时间影响最显著;频率对温差的影响无统计学意义(F=2.181,P=0.314),频率为10次/分的效应数值最大.节律性按法与持续性按法对按压后温度差值的影响差异有统计学意义(左侧P=0.031,右侧P=0.045),但对热效应持续时间的影响无统计学差异(P=0.690).结论:对温差影响显著的按法参数为力量与操作时间.最佳热效应参数组合为力量2.5 kg,操作时间7.5 min,频率10次/分.节律性按法的局部热效应比持续性按法显著.
基金
湖南省中医药管理局重点课题项目,No. 201721
湖南省自然科学基金一般项目,No. 2018JJ3396
国家自然科学基金,No. 81804216.
