The aim of this study was to demonstrate differences in human skin transepidermal water loss (TEWL) in vivo related to site on volar forearm. Fourteen healthy volunteers entered the study and seven sites were tested. After randomization of both forearm and measure order, TEWL measurements were performed using the Servo Med Evaporimeter. TEWL values next to the wrist were found statistically greater than on the other sites. Hence wrist region should preferably be excluded from TEWL measurements on forearm.
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Panisset et al. (1992) studied this question.
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