Sato M, Katsuura T, Yasukouchi A
J Hum Ergol (Tokyo). 1979 Dec;8(2):145-53.
Critical temperatures were determined by a new estimating system called the polynomial equation method. Its consists of polynomial regression equations of metabolic rate on ambient and body temperatures and conversion equations enable to convert metabolic rate value into temperature value. Nine young adult males were tested using the system. Metabolic rate was calculated indirectly with a reference to protein metabolism and the critical temperatures were determined as follows; the lower critical air temperature to be 26.2 C, the upper critical air temperature to be 47.0 degrees C, the lower and upper mean skin temperature to be 29.2 degrees C and 36.5 degrees C, and the lower and upper critical rectal temperature to be 35.5 degrees C and 37.9 degrees C, respectively. The polynomial equation method has an advantage over the intersect method since it allows estimation of several kinds of critical temperature.
临界温度是通过一种名为多项式方程法的新估算系统确定的。它由代谢率关于环境温度和体温的多项式回归方程组成，以及能将代谢率值转换为温度值的转换方程。使用该系统对9名年轻成年男性进行了测试。代谢率通过参考蛋白质代谢间接计算得出，临界温度的确定如下：较低临界气温为26.2℃，较高临界气温为47.0℃，较低和较高平均皮肤温度分别为29.2℃和36.5℃，较低和较高临界直肠温度分别为35.5℃和37.9℃。多项式方程法相对于相交法具有优势，因为它允许估算多种临界温度。
