Comparison of density and output of sweat gland in tropical Africans and temperate Koreans

Autonomic Neuroscience : Basic & Clinical
Jeong-Beom Lee, YoungOh Shin

Abstract

Modification of sweating could be due to changes in activated sweat gland density (ASGD) and/or activated sweat gland output (ASGO). The present study determined regional and inter-ethnic differences in ASGD and ASGO during passive heating between tropical natives (African, n=22) and temperate natives (Republic of Korean, n=25). Heat load was carried out by immersing the half body into a hot water bath for 30min. Tympanic temperature (Tty) and skin temperature (Ts) were measured. Mean body temperature (mTb) was calculated. Sudomotor activities including sweat onset time, sweat rate, ASGD, and ASGO were examined in eight regions of the skin. Africans had smaller increase in mTb during passive heating than Koreans. The onset time of sweating was much more delayed in Africans compared to Koreans. In response to thermal load, ASGD and ASGO differed between body regions in Africans and Koreans. In most skin regions, ASGD and ASGO were lower in tropical Africans compared to those in temperate Koreans. Trunk portion including chest, upper back, lower back, abdomen had greater swear rate, ASGD, and ASGO compared to peripheral segments including upper arm, forearm, leg, and thigh in both ethnic groups. Distribution patterns of ASGD over...Continue Reading

Citations

Jan 18, 2018·American Journal of Human Biology : the Official Journal of the Human Biology Council·Jeong Beom Lee, Jeong Ho Kim
Sep 14, 2018·European Journal of Applied Physiology·Dahee JungJoo-Young Lee
Oct 15, 2019·Temperature : Multidisciplinary Biomedical Journal·Lindsay B Baker
Jul 16, 2021·Frontiers in Physiology·Tae-Hwan ParkJeong-Beom Lee
Oct 5, 2020·Computers in Biology and Medicine·Sachiko KoderaHiroshi Sasaki

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