Young-Ju Jeon

Variations in non-invasive radial artery pulse waveform at different measuring positions

Noninvasive radial artery pulse wave has been widely not only for the pulse wave analysis (PWA) itself but also for assessment of arterial stiffness with estimated aortic pulse wave from peripheral pulse wave.

Development and Evaluation of Repeatability of the Integrated Constitutional Diagnosis System

Abstract Development and Evaluation of Repeatability of the Integrated Constitutional Diagnosis System Young-Ju Jeon, Jang-Woong Kim, Jae-Uk Kim, Jang-Han Bae, Jong-Yeol Kim, and Keun-Ho KimKorean Institute of Oriental MedicineObjectivesIn this study, we developed a mock-up of the system for Sasang Constitutional (SC) diagnosis. This system consistsof 5 devices which are the face analyzer, the voice analyzer, the skin analyzer, the pulse analyzer, and the computer-basedquestionnaire. Our goal is to evaluate the repeatability of the system.MethodsEach device is capable of classifying SC types. The classification probability of the integrated system for the SC types was obtained by summing the probability from each device. For evaluating the repeatability of the system,we collected data for 5 subjects, and repeated the measurement three times for each individual. The average and standard deviation were used for calculating the Coefficient of Variation.ResultsThe results showed that the repeatability of the classification probability of the integrated system is about 8%, which implies the system is repeatable. ConclusionsTo increase usability of this system, it is desirable for the system to offer information on health condition of the user. The integrated constitutional diagnosis system will be upgraded to complement the convenience and to develop the diagnostic algorithm for the user’s health condition.Key Words: Sasang Constitutional Medicine, Integrated Constitutional Diagnosis System, Diagnosis Instrument

Study of Skin Elasticity and Perspiration of Elderly Female according to Sasang Constitution (SC)

Abstract Study of Skin Elasticity and Perspiration of Elderly Female according toSasang Constitution (SC) Chang-Jin Jung, Bon-Cho Ku, Jae-Chul Lee, Jaeuk-U. Kim, Young-Ju Jeon, Keun-Ho Kim, Jong-Yeol Kim, and Young-Min Kim Korea Institute of Oriental MedicineObjectivesSasang Constitution (SC) is determined by various physical and psychological attributes. Recently, skin propertieshave been used effectively to describe SC types in clinics. In this paper, we investigated the constitution dependenceof skin elasticity and skin perspiration by using quantitative measurement devices. MethodsThe skin elasticity of forearm and the skin perspiration of forehead and philtrum were measured in 223 elderly female subjects. To determine the subject’s constitution, we adopted the classification results from a newly developeddiagnostic tool. For the clarity of constitution, we excluded low-scored subjects in their SC classification. Results & ConclusionsAs a result, the elasticity hysteresis of forearm (EHFa) of Taeum-in group was significantly less than the EHFa of Soeum-in group. Soeum-in group has high perspiration difference between philtrum and forehead (Diff.PhFh) compared to Taeum-in group in a significance level of .05. Taeum-in and Soeum-in group were significantly classified by EHFa and Diff.PhFh using a Support Vector Machine.Key Words: Sasang Constitution, Body Mass Index, Skin elasticity, Skin hysteresis, Perspiration