2007, Piran, Slovenia

Sweating
Such differences could be explained on the basis of differences in local skin temperatures,
sweat gland densities or local differences in glandular flows. However, our data revealed no
significant differences among the skin temperatures for the ten head sites. Whilst forehead
sweat gland density has been reported as one of the highest (Szabo, 1967), there is lack of
information regarding sweat gland density and flow across the scalp.
A number of head manikins and other head forms have been built to investigate the impact of
headgear and helmets on physiological responses (Liu and Holmer, 1995; Hsu et al., 2000;
Bruhwiler, 2003). The current study provides a unique description of the sweating distribution
within the head, which may represent a useful contribution for those interested in simulating
the human head thermal responses, and developing helmets and headgear that are most likely
to enhance evaporative cooling and thermal comfort.
REFERENCES
Bruhwiler, P.A. (2003). Heated, perspiring manikin headform for the measurement of
headgear ventilation characteristics. Meas. Sci. Technol. 14:217-227.
Desruelle, A.V., and Candas, V. (2000). Thermoregulatory effects of three different types of
head cooling in humans during a mild hyperthermia. Eur. J. Appl. Physiol. 81:33-39.
Froese, G., Burton, A.C. 1957. Heat losses from the human head. J. Appl. Physiol. 10, 235-
241.
Hardy, J.D., DuBois, E.F. 1938. The technic of measuring radiation and convection. J. Nutr.
15, 461-475.
Hsu, Y.L.,Tai, C.Y., Chen, T.C. (2000). Improving thermal properties of industrial safety
helmets. Int. J. Ind. Ergon. 26:109-117.
Liu, X., Holmér, I. (1995). Evaporative heat transfer characteristics of industrial safety
helmets. Appl. Ergon. 26:135–140.
Rasch, W., Samson, P., Cote, J., Cabanac, M. 1991. Heat loss from the human head during
exercise. J. Appl. Physiol. 71, 590-595.
Szabo, G. (1967). The regional anatomy of the human integument with special reference to
the distribution of hair follicles, sweat glands and melanocytes. Phil. Trans. Royal Soc.
London. Series B. 252:447-485.
275