Fuller A, Oosthuyse T, Maloney S K, Mitchell D
Department of Physiology, University of the Witwaterstand, Medical School, Johannesburg, South Africa.
Eur J Appl Physiol Occup Physiol. 1999 Mar;79(4):341-6. doi: 10.1007/s004210050518.
We recorded body temperatures in four runners, two squash players and one swimmer at 1-min intervals using miniature data loggers. These single-channel loggers are small and light (25 g), and were easily carried by the athletes during their sporting activities. Wide-range loggers (-37 degrees C to +46 degrees C), which had a temperature resolution of 0.4 degrees C, were used to measure thigh skin temperature. Auditory canal temperature and rectal temperature were measured with narrow-range loggers (+34 degrees C to + 46 degrees C) which had a considerably higher resolution (0.04 degrees C). With the aid of visual analogue scales subjects reported that the thermometric equipment caused very little discomfort or impairment of exercise performance. Loggers connected to uncoated bead thermistors (used for skin and auditory canal temperatures) had a thermal time constant of 0.4 s, and that of the coated thermistors (rectal probes) was 6 s. We were able to waterproof the equipment and measure rectal temperature in a swimmer. Hot (35 degrees C) or cold (5 degrees C) ambient temperatures had an insignificant effect on the intrinsic accuracy of the data loggers, even when used without recalibration at those temperatures. We believe that miniature temperature loggers are convenient and accurate thermometers for use during sporting activities and may provide new insights into thermoregulation during exercise.
我们使用微型数据记录器，以1分钟的间隔记录了4名跑步运动员、2名壁球运动员和1名游泳运动员的体温。这些单通道记录器体积小、重量轻（25克），运动员在进行体育活动时可轻松携带。使用温度范围宽（-37摄氏度至+46摄氏度）、温度分辨率为0.4摄氏度的记录器来测量大腿皮肤温度。耳道温度和直肠温度则用温度范围窄（+34摄氏度至+46摄氏度）、分辨率高得多（0.04摄氏度）的记录器来测量。借助视觉模拟量表，受试者报告说，体温测量设备几乎没有造成不适，也未影响运动表现。连接到未涂层珠状热敏电阻（用于测量皮肤和耳道温度）的记录器热时间常数为0.4秒，而连接到涂层热敏电阻（直肠探头）的记录器热时间常数为6秒。我们能够对设备进行防水处理，并测量游泳运动员的直肠温度。即使在35摄氏度的高温或5摄氏度的低温环境下使用且未重新校准，环境温度对数据记录器的固有精度影响也不大。我们认为，微型温度记录器是体育活动中方便且准确的温度计，可能会为运动中的体温调节提供新的见解。
