循经施加机械压力对大肠经三个部位深部组织中氧分压的影响

本实验应用三通道组织氧分压测定仪 ,对 30名健康成年志愿者大肠经线上三个穴点及其两侧旁开约 2cm处的非经线对照点深部组织中的氧分压进行了 1 2 0人次的实验观察。结果表明 ,机械压迫能明显降低针刺时沿大肠经经线深部组织中的氧分压的变化 ,而对非经线对照点深部组织中的氧分压影响则不大。而且只有当压迫施加在经线上时 ,这种阻滞效应才能表现出来。上述结果支持针刺时外周可能存在某种循经行进的实质性过程的设想。

The Influence of Mechanical Pressing on Partial Pressure of Oxygen in Three Points along the Large Intestine Meridian during Acupuncture

Some reports showed that pressing the meridian travelling course could decrease the effect of acupuncture in subjects with or without propagated sensation along meridians (PSM). Can pressing the meridian travelling course affect the variation of oxygen partial pressure (PO 2) in deep tissues along the meridian during acupuncture? To solve this problem, thirty healthy volunteers without PSM were subjected into this observation. Three points of the Large Intestine Meridian were selected, and a medial and a lateral point 2 cm from each measured point were taken as the control sites. One hundred and twenty times of observation were performed, the results showed:(1) the measured points decreased during puncturing Hegu (LI 4), while the PO 2 in the points of the meridian decreased more remarkably than that in control sites; (2)when the pressure was applied to the meridian travelling course, the variation rate of PO 2 in the points along the meridian decreased obviously (P<0.05), but there were no any marked changes in the control sites; (3) the difference of the variation rate of PO 2 between the pressed point and non pressed point was significant when the pressure was applied to the meridian travelling course. If the pressure was applied to the control sites beside the meridian course, the above mentioned results were not found. The results support the suggestion that there may be a certain substantial advancing process along the meridian course during acupuncture. It is thus possible that when blocking this process by mechanical pressure, the effect of acupuncture stimulation will be poor.