熱流素子によるヒトのDry Heat Lossの測定 (第1報)

抄録

It is common that the values of total dry heat loss could be estimated indirectly using the thermal equilibrium equation. In our present study attempts were made to examine to what extent the values of dry heat loss obtained directly by the use of “heat flux transducer” (Thermonetics Co., U. S. A.) approximate to those estimated indirectly by the commonly used method. 11 healthy females (21-25 yrs) served as subjects. They wore only shorts and sat on a chair in a climatic chamber (T_a : 29°C, 50% R.H.; Ta : 25°C, 50% R. H.). Cutaneous heat flow was measured on eight points of skin surface by “heat flux transducer”. The average values (mean +S.D.) of total dry heat loss at T_a of 29°C were 27.08+7.85 W/m² and44.63±3.04 W/m² according to the methods of indirect (thermal equilibrium equation) and direct (heat flux transducer) measurements, respectively. However, a significant positive correlation existed between the both values. Therefore, our findings suggest that the “heat flux transducer” could be utilized in a study of relative comparison and consecutive change of locally heat flow measurements.