Summary
In six subjects thermograms of the thighs and the forearms were taken before, during and after 10 min ergometer exercise at 100 W at an ambient temperature of 23°C. During exercise, an intraindividually constant and reproducible skin temperature pattern with local temperature differences exceeding 3°C evolved. Reactions after external local cooling or after occlusion of blood flow and measurements with a laser Dopplerflow-meter showed dispersed convective heat transport to be the source of this irregular pattern. Temperature differences of 3.6°C and deviations of blood flow in the skin microcirculation of 300% within a distance of a few centimetres reduce the value of single-spot measurements of skin temperature with reference to the whole extremity.
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Hunold, S., Mietzsch, E. & Werner, J. Thermographic studies on patterns of skin temperature after exercise. Europ. J. Appl. Physiol. 65, 550–554 (1992). https://doi.org/10.1007/BF00602364
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DOI: https://doi.org/10.1007/BF00602364