Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine and TCM Research Center Graz, Medical University of Graz, Auenbruggerplatz 29, 8036 Graz, Austria.
Biomed Eng Online. 2010 Nov 23;9:78. doi: 10.1186/1475-925X-9-78.
Due to controversially discussed results in scientific literature concerning changes of electrical skin impedance before and during acupuncture a new measurement system has been developed.
The prototype measures and analyzes the electrical skin impedance computer-based and simultaneously in 48 channels within a 2.5×3.5 cm matrix. Preliminary measurements in one person were performed using metal needle and violet laser (405 nm) acupuncture at the acupoint Kongzui (LU6). The new system is an improvement on devices previously developed by other researchers for this purpose.
Skin impedance in the immediate surroundings of the acupoint was lowered reproducibly following needle stimulation and also violet laser stimulation.
A new instrumentation for skin impedance measurements is presented. The following hypotheses suggested by our results will have to be tested in further studies: Needle acupuncture causes significant, specific local changes of electrical skin impedance parameters. Optical stimulation (violet laser) at an acupoint causes direct electrical biosignal changes.
由于科学文献中关于针灸前后电皮肤阻抗变化的结果存在争议，因此开发了一种新的测量系统。
该原型机基于计算机测量和分析，同时在 2.5×3.5cm 的矩阵中以 48 个通道进行分析。在一个人身上进行了初步测量，使用金属针和紫激光（405nm）在穴位 Kongzui（LU6）进行针刺。该新系统是为达到该目的而由其他研究人员先前开发的设备的改进版。
针刺刺激和紫激光刺激后，穴位周围的皮肤阻抗可重复降低。
本文提出了一种新的皮肤阻抗测量仪器。我们的结果提出了以下假设，这些假设将在进一步的研究中进行检验：针刺引起电皮肤阻抗参数的显著、特异性局部变化。穴位处的光刺激（紫激光）会引起直接的电生物信号变化。
