人体十二经原穴皮肤二氧化碳呼出量相关性的聚类分析

使用高灵敏度二氧化碳（CO_2）测定仪对30例健康人12经原穴的皮肤CO_2呼出量（SRC）进行了测定．对所测24个穴位的SRC进行两两相关计算，使用SAS统计软件对其距离矩阵进行聚类分析．类平均法聚类的结果表明，左右同名穴首先聚类，其次是表里经穴和同名经穴，伪t检验还支持将12经原穴分成两大类．Ward法聚类的结果与类平均法接近．同名穴组、表里经穴组、同名经穴组和非特异组的平均相关系数分别为0.814，0.65，0.514和0.379．秩和检验表明各组之间有显著性差异．本结果为传统中医经络理论中的同经左右相关、表里经相关和同名经相关原理提供了科学支持．

Cluster Analysis to the Correlativity of Skin Respiration of CO_2 on Acu Points of Twelve Meridians on Human Body

A high sensitive CO_2 instrument was used to measure the skin respiration of CO_2(SRC) on acu points of twelve meridians of 30 health people.The correlative coefficients (CC)between any two points in 24 acu points were calculated.A CC matrix was obtained and was changed to a distance matrix which was dustered by SAS statistic software.The cluster result by average method showed that the same name acu points were clusterd first and then the exterior and interanl meridian points and the same name meridian points.Also the twelve acu points can be divided into two groups according to pseudo t-test.The cluster results by Ward's method were similar to the average methood.The average values of CC in same name acu points group,exterior and interanl acu points group,same meridian name points group and normal points group,were 0.814,0.65,0.514 and 0.379 which were significantly different by Wilcoxon Scores (rank stuns) test.The results gave a scientific support to the principles of same meridian left and right correlation,exterior and internal meridian correlation and same name meridian correlation in traditional Chinese medicine meridian theory.