CIRCADIAN VARIATION IN HUMAN HEAT CONDUCTANCE.
Rept. for 1964-67,
KENTUCKY RESEARCH FOUNDATION LEXINGTON
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In an investigation of circadian variation in human temperature regulation as reflected in body heat conductance, peripheral temperatures, heat flows and rectal temperatures were measured in clothed resting males in a neutral environment at different times throughout the day. Peripheral heat flow was considered a measure of both metabolic heat output and the state of the temperature regulatory system at the time of measurement, body heat conductance as a measure of the latter alone. The results, analyzed both by conventional statistical comparison of results obtained at 0600 and 1200 hours, and by periodicity analysis following Halbergs Cosinor approach, indicate that circadian variations in peripheral heat flow and core-shell conductance, as well as in core temperature and some skin temperatures, do exist. Author
- Anatomy and Physiology