Tyan Chu-Chang, Liang Wen-Miin, Shy Haw-Yaw, Kuo Hsien-Wen, Lin Jaung-Geng, Chen Hung-Wei, Chen Jian-Jung
Graduate Institute of Chinese Medical Science, China Medical University (CMU), Dept. of Chinese Medicine, China Medical University Hospital (CMUH), Taichung, Taiwan.
Acupunct Electrother Res. 2007;32(1-2):87-96. doi: 10.3727/036012907815844156.
This study was to provide a standardized definition of the positioning method of finger placement on the radial artery for pulse diagnosis in traditional Chinese medicine (TCM); that is, to define the locations of Cun, Guan and Chi in TCM. A total of 200 subjects (100 males and 100 females, 18-40 years of age) were recruited from the general population. According to ancient TCM records, the "6% of the elbow length" (ELx6%) is used as the standard method of establishing the length of Cun. We hypothesized that the highest point of "prominent bone" (PB) is the lower limit of Cun, so "the distance between the distal wrist crease and the highest point of the PB" (DWP) is considered the length of Cun. If this hypothesis holds, then we can define the locations of Cun, Guan and Chi by using the ratio 6:6:7 from the ancient TCM records. The distribution of relative bias and paired t-test were used to verify the findings. The mean value of relative bias of DWP compared with ELx6% was close to 0% (males = 2.1%, SD = 12.2%; females = 0.2%, SD = 12.6%). The paired t-test confirmed that there was no significant difference (p > 0.05) between the mean values of the DWP and ELx6%. Therefore, it is reasonable to assume that the length of the Cun is equal to the length of the DWP. Our findings confirm that the location of Cun is from the distal wrist crease to the highest point of PB.
本研究旨在为中医脉诊中桡动脉上手指放置的定位方法提供标准化定义，即确定中医寸、关、尺的位置。从普通人群中招募了200名受试者（男性100名，女性100名，年龄18 - 40岁）。根据中医古籍记载，“肘长的6%”（ELx6%）被用作确定寸长度的标准方法。我们假设“高骨”（PB）的最高点是寸的下限，因此“腕横纹远端与PB最高点之间的距离”（DWP）被视为寸的长度。如果该假设成立，那么我们可以根据中医古籍记载的6:6:7比例来确定寸、关、尺的位置。采用相对偏差分布和配对t检验来验证研究结果。与ELx6%相比，DWP的相对偏差平均值接近0%（男性 = 2.1%，标准差 = 12.2%；女性 = 0.2%，标准差 = 12.6%）。配对t检验证实DWP和ELx6%的平均值之间无显著差异（p > 0.05）。因此，可以合理地假设寸的长度等于DWP的长度。我们的研究结果证实寸的位置是从腕横纹远端到PB的最高点。
