阻抗法测定经络穴位的机制及临床应用探讨OA

The impedance method is an important technical approach for the objective detection of meridian acupoints and has achieved considerable development over the past decades.This review aims to systematically summarize the current state of research in four areas:electrical properties,biophysical mechanisms,measurement methods,and clinical applications.Through an analysis of key domestic and international literature,four main aspects are concluded.① Studies on the electrical properties of acupoints have confirmed the relative specificity of their"low-impedance"characteristic,which can dynamically respond to changes in physiological cycles and pathological states,thereby showing potential as a biological characterization indicator.②With regard to biological mechanisms,multi-dimensional theoretical hypotheses have been proposed,including the connective tissue theory and neurohumoral regulation,which are progressively deepening the essential understanding of the low-impedance phenomenon at acupoints.③ In terms of technological methodology,measurement systems have continued to evolved towards higher precision,greater stability,and improved wearability,with technologies such as the four-electrode method and flexible electrodes significantly enhancing data reliability and application scenarios.④In clinical practice,this method provides an objective reference for acupoint identification and may help address the lack of standardization in areas such as the auxiliary diagnosis and condition assessment of specific diseases.This review points out a future development path from"mechanism integration and technology optimization"to"deepened clinical translation".For the first time,it systematically associates the modern electrophysiological evidence from impedance measurement with the"node-pathway"theory of meridians and acupoints in traditional Chinese medicine.