Differential heating of trunk and extremities
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Experiments in which the whole human body was heated or cooled are compared with others in which one extremtiy (arm or leg) was simultaneously cooled or heated. With a warm load on the rest of the body resulting in general sweating, a cold load on one extremity did not evoke local shivering; with general body cooling, heating one limb did not stop the shivering. Skin temperatures of the other parts of the body were not influenced by warming or cooling one extremity. Evaporative heat loss was influenced by local, mean skin and core temperature, whereas shivering did not depend on local temperature, and vasomotor control seemed to be controlled predominantly by central temperatures. A cold load on an extremity during whole body heating in most cases induced an oscillatory behaviour of core temperature and of the evaporative heat loss from the body and the extremity.
It is assumed that local, mean skin and core temperatures influence the three autonomous effector systems to very different degree.
Key-wordsSkin temperature Core temperature Metabolism Evaporation Vasomotor control
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- Benzinger TH (1969) Homeostatis of central temperature in man. Physiol Rev 49:671–759Google Scholar
- Brengelmann GL, Wyss C, Rowell B (1973) Control of forearm skin blood flow during periods of steadily increasing skin temperature. J Appl Physiol 35:77–84Google Scholar
- Downey JA, Huckaba CE, Kelley PS, Tam HS, Darling RC, Cheh HY (1976) Sweating responses to central and peripheral heating in spinal man. J Appl Physiol 40:701–706Google Scholar
- Graener R, Werner J (1980) Erfahrungen mit einem Mikroprozessorsystem zur Erfassung und Verrechnung vegetativer Parameter. Biomed Technik 24:134–135Google Scholar
- Hardy JD, Dubois EF (1937) The technic of measuring radiation and convention. J Nutr 15:461–475Google Scholar
- Jessen C (1981) Independent clamps of peripheral and central temperatures and their effects on heat production in the goat. J Physiol [Lond] 311:11–22Google Scholar
- Jessen C, Nagel A, Feistkorn G (1984) Beziehungen zwischen Kern- und Hauttemperaturen in der Regelung von WÄrmeproduktion und -abgabe bei wachen Ziegen. Koll. DFG-Schwerpunktprogramm ‘Mechanismen der Temperaturre-gulation und -adaptation’. Bad NauheimGoogle Scholar
- Libert JP, Candas V, Vogt JJ (1979) Effect of rate of change in skin temperature on local sweating rate. J Appl Physiol 47:306–311Google Scholar
- Nadel ER, Bullard RW, Stolwijk JAJ (1971) Importance of skin temperature in the regulation of sweating. J Appl Physiol 31:80–87Google Scholar
- Nadel ER, Mitchell JW, Saltin B, Stolwijk JAJ (1971) Peripheral modifications to the central drive for sweating. J Appl Physiol 31:828–833Google Scholar
- Nadel ER, Mitchell JW, Stolwijk JAJ (1973) Differential thermal sensitivity in the human skin. Pflügers Arch 340:71–76Google Scholar
- Proppe DW (1981) Influence of skin temperature on central thermoregulatory control of leg blood flow. J Appl Physiol 50:974–978Google Scholar
- Werner T, Reents R (1980) A contribution to the topography of temperature regulation in man. Eur J Appl Physiol 45:87–94Google Scholar
- Wyss CR, Brengelmann GL, Johnson JM, Rowell LB, Niederberger A (1974) Control of skin blood flow, sweating and heart rate: role of skin vs. core temperature, J Appl Physiol 36:726–733Google Scholar