Objectives Sasang Constitution (SC) is determined by various physical and psychological attributes. Recently, skin properties have been used effectively to describe SC types in clinics. In this paper, we investigated the constitution dependence of skin elasticity and skin perspiration by using quantitative measurement devices. Methods The skin elasticity of forearm and the skin perspiration of forehead and philtrum were measured in 223 elderly female subjects. To determine the subject's

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... tion, we adopted the classification results from a newly developed diagnostic tool. For the clarity of constitution, we excluded low-scored subjects in their SC classification. Results & Conclusions As 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.