Pilot study of blood perfusion coherence along the meridian in forearm

BMC Complementary and Alternative Medicine

Research Article

Guangjun Wang¹  Wenting Zhou¹  Shuyong Jia¹  Yuying Tian¹  Weibo Zhang¹ 

[1] Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China;

关键词: Coherence analysis;    Full-field laser blood perfusion imaging;    Meridian;    Age;    Inflatable occlusion;   

DOI  :  10.1186/1472-6882-13-327

 received in 2013-05-07, accepted in 2013-11-19,  发布年份 2013

来源: Springer

【 摘 要 】

BackgroundMany studies have explored the relationship between skin microcirculation and meridian activation. However, few studies have examined blood perfusion coherence along the meridians, and other studies have suggested that the skin vasodilator response relates to age. This study investigated blood perfusion coherence characteristics along the meridian of the forearm in healthy volunteers.MethodsA total of 15 young subjects (25.53 ± 2.20) and 15 middle-aged subjects (50.07 ± 3.37) were recruited for this study. Before experiments, each subject was placed in a temperature-controlled room for 60 min. Skin blood perfusion from five points was recorded simultaneously using a full-field laser perfusion imager before and after inflatable occlusion. The five points comprised three points located on the pericardium meridian, and two points from different locations. Coherence analysis between these points was performed at different frequency intervals from 0.0095 to 2 Hz.ResultsIn young subjects, the coherence value was unchanged before and after occlusion, and there was no significant difference in coherence value between meridian-meridian points (M-M) and meridian-parameridian points (M-P). In middle-aged subjects, the coherence value increased significantly in both M-M and M-P at frequency intervals of 0.14-0.4 Hz, 0.4-1.6 Hz, and 1.6-2 Hz. However, there was no significant difference in coherence values between M-M and M-P.ConclusionsInflatable occlusion can increase middle-aged subjects’ blood perfusion coherence value of the forearm. However, there is no specificity in meridian location.

【 授权许可】

Unknown   
© Wang et al.; licensee BioMed Central Ltd. 2013. This article is published under license to BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.