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KMID : 0363620170380040055
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Journal of Korean Oriental Medicine
2017 Volume.38 No. 4 p.55 ~ p.61
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A study on the traceability and uncertainty of skin hydration measurement on the sole of the foot
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Yang Gi-Young
Choi Ji-Won
Chae Han
Lee Byung-Ryul
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Abstract
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Objectives: In order to accurately measure skin moisture and accumulate normal skin moisture data, analyzing the uncertainty of the skin moisture measurement and establishing standard reference data is essential. It helps to evaluate the skin’s condition and has great significance in diagnosis and treatment. In this study, the traceability of the equipment and the uncertainty of the results were analyzed for their potential use in the field of Korean medicine. The data was collected measuring skin moisture on the sole of the foot.
Methods: One professional measured the moisture of the adult male’s foot 10 times following a determined protocol. The standard uncertainty of repeated measurements was calculated from the mean value of 10 repeated measurements. Ten trainee participants also measured the adult male’s foot following a determined protocol. The standard uncertainty by tester was calculated from the value of repeated measurements.
Results: As a result of analyzing the difference between the mean and standard uncertainties in both the expert and trainees, it was confirmed that the variance in this study did not satisfy the normal distribution. In addition, the Mann-Whitney U-test was carried out, and it was found that there was no significant difference in the measured values of the two groups. The authorized uncertainty of measurements and traceability of all the equipment was not confirmed.
Conclusions: This paper establishes the basis for later measurement-equipment research to provide the objective indicators to approach the dryness of plantar skin from dehydration, the Korean medicine perspective.
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KEYWORD
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Traceability, Uncertainty, Skin hydration (SH), Transepidermal water loss (TEWL)
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