Unger H, Hempel F G, Kaufmann P G
Undersea Biomed Res. 1980 Mar;7(1):27-34.
Brain and rectal temperatures were measured in guinea pigs exposed to helium-oxygen environments at pressures as high as 50 bars. Very high correlations (r = .856, P less than 0.001) between the two values were observed, with an average difference of 0.47 degrees C (computed SD = 0.31). Brain temperature was usually higher than rectal. At a given ambient temperature, heat loss at 50 bars was more rapid than at 20 bars, which supports existing data for lower pressures. At 50 bars, normal equilibrium temperatures (approximately equal to 39 degrees C) could be maintained only if ambient temperature was in the vicinity of 35 degrees C. Lower ambient temperatures resulted in lower equilibrium temperatures. Between 33 and 39 degrees C, brain temperature can be predicted from rectal temperature, with an error of about 0.5 degree C.
在高达50巴压力的氦氧环境中，对豚鼠的脑温和直肠温度进行了测量。观察到两个值之间具有非常高的相关性（r = 0.856，P小于0.001），平均差值为0.47摄氏度（计算标准差 = 0.31）。脑温通常高于直肠温度。在给定的环境温度下，50巴时的热损失比20巴时更快，这支持了较低压力下的现有数据。在50巴时，只有当环境温度在35摄氏度左右时，才能维持正常的平衡温度（约等于39摄氏度）。较低的环境温度导致较低的平衡温度。在33至39摄氏度之间，可以根据直肠温度预测脑温，误差约为0.5摄氏度。
