Shibasaki M, Kondo N, Tominaga H, Aoki K, Hasegawa E, Idota Y, Moriwaki T
Laboratory for Applied Human Physiology, Faculty of Human Development, Kobe University, Kobe 657-8501, Japan.
J Appl Physiol (1985). 1998 Sep;85(3):921-6. doi: 10.1152/jappl.1998.85.3.921.
The purpose of this study was to investigate the utility of an infrared tympanic thermometry by using an optical fiber for measuring tympanic temperature (Tty). In the head cooling and facial fanning tests during normothermia, right Tty measured by this method (infrared-Tty) and esophageal temperature (Tes) were not affected by decreased temple and forehead skin temperatures, suggesting that the infrared sensor in this system measured the infrared radiation from the tympanic membrane selectively. Eight male subjects took part in passive-heat-stress and progressive-exercise tests. No significant differences among infrared-Tty, the left Tty measured by thermistor (contact-Tty), and Tes were observed at rest or at the end of each experiment, and there was no significant difference in the increase in these core temperatures from rest to the end. Furthermore, there were no significant differences in the core temperature threshold at the onset of sweating and slope (the relationship of sweating rate vs. infrared-Tty and vs. contact-Tty). These results suggest that this method makes it possible to measure Tty accurately, continuously, and more safely.
本研究的目的是探讨使用光纤测量鼓膜温度（Tty）的红外鼓膜测温法的实用性。在体温正常时的头部冷却和面部扇风测试中，用该方法测量的右侧鼓膜温度（红外-Tty）和食管温度（Tes）不受颞部和前额皮肤温度降低的影响，这表明该系统中的红外传感器选择性地测量了来自鼓膜的红外辐射。八名男性受试者参与了被动热应激和渐进性运动测试。在休息时或每个实验结束时，未观察到红外-Tty、通过热敏电阻测量的左侧鼓膜温度（接触-Tty）和Tes之间存在显著差异，并且这些核心温度从休息到结束时的升高也没有显著差异。此外，出汗开始时的核心温度阈值和斜率（出汗率与红外-Tty以及与接触-Tty的关系）也没有显著差异。这些结果表明，该方法能够准确、连续且更安全地测量鼓膜温度。
