Korey Stringer Institute, Department of Kinesiology, University of Connecticut, 2095 Hillside Road, Storrs, CT 06269-1110, USA.
J Athl Train. 2012 May-Jun;47(3):329-38. doi: 10.4085/1062-6050-47.3.09.
To compare mean differences in core body temperature (T(core)) as assessed via rectal thermometry (T(re)) and aural thermometry (T(au)) in hyperthermic exercising individuals.
PubMed, Ovid MEDLINE, SPORTDiscus, CINAHL, and Cochrane Library in English from the earliest entry points to August 2009 using the search terms aural, core body temperature, core temperature, exercise, rectal, temperature, thermistor, thermometer, thermometry, and tympanic. Study Selection: Original research articles that met these criteria were included: (1) concurrent measurement of T(re) and T(au) in participants during exercise, (2) minimum mean temperature that reached 38°C by at least 1 technique during or after exercise, and (3) report of means, standard deviations, and sample sizes.
Nine articles were included, and 3 independent reviewers scored these articles using the Physiotherapy Evidence Database (PEDro) scale (mean = 5.1 ± 0.4). Data were divided into time periods pre-exercise, during exercise (30 to 180 minutes), and postexercise, as well as T(re) ranges <37.99°C, 38.00°C to 38.99°C, and >39.00°C. Means and standard deviations for both measurement techniques were provided at all time intervals reported. Meta-analysis was performed to determine pooled and weighted mean differences between T(re) and T(au).
The T(re) was conclusively higher than the T(au) pre-exercise (mean difference [MD] = 0.27°C, 95% confidence interval [CI] = 0.15°C, 0.39°C), during exercise (MD = 0.96°C, 95% CI = 0.84°C, 1.08°C), and postexercise (MD = 0.71°C, 95% CI = 0.65°C, 0.78°C). As T(re) measures increased, the magnitude of difference between the techniques also increased with an MD of 0.59°C (95% CI = 0.53°C, 0.65°C) when T(re) was <38°C; 0.79°C (95% CI = 0.72°C, 0.86°C) when T(re) was between 38.0°C and 38.99°C; and 1.72°C (95% CI = 1.54°, 1.91°C) when T(re) was >39.0°C.
The T(re) was consistently greater than T(au) when T(core) was measured in hyperthermic individuals before, during, and postexercise. As T(core) increased, T(au) appeared to underestimate T(core) as determined by T(re). Clinicians should be aware of this critical difference in temperature magnitude between these measurement techniques when assessing T(core) in hyperthermic individuals during or postexercise.
比较高温运动个体直肠测温（T(re)）和耳温测温（T(au)）评估核心体温（T(core)）的均值差异。
PubMed、Ovid MEDLINE、SPORTDiscus、CINAHL 和 Cochrane Library 数据库，英文文献检索时间截至 2009 年 8 月，使用的检索词为耳、核心体温、核心温度、运动、直肠、温度、热敏电阻、温度计、测温法、鼓膜。
纳入标准为：（1）在运动过程中同时测量 T(re)和 T(au)；（2）至少有 1 种技术在运动过程中或之后达到 38°C 及以上的最低平均温度；（3）报告平均值、标准差和样本量。
共纳入 9 篇文章，3 名独立评审员使用物理治疗证据数据库（PEDro）量表（平均=5.1±0.4）对这些文章进行评分。数据分为运动前、运动中（30 至 180 分钟）和运动后，以及 T(re)范围<37.99°C、38.00°C 至 38.99°C 和>39.00°C。报告了所有报告时间间隔的两种测量技术的均值和标准差。对 T(re)和 T(au)之间的汇总和加权均值差异进行了荟萃分析。
T(re)在运动前（差值=0.27°C，95%置信区间[CI]：0.15°C，0.39°C）、运动中（差值=0.96°C，95% CI：0.84°C，1.08°C）和运动后（差值=0.71°C，95% CI：0.65°C，0.78°C）均显著高于 T(au)。随着 T(re)测量值的增加，两种技术之间的差异程度也随之增加，当 T(re)<38°C 时差值为 0.59°C（95% CI：0.53°C，0.65°C）；当 T(re)在 38.0°C 到 38.99°C 之间时差值为 0.79°C（95% CI：0.72°C，0.86°C）；当 T(re)>39.0°C 时差值为 1.72°C（95% CI：1.54°C，1.91°C）。
在高温个体运动前、运动中和运动后测量核心体温时，T(re)始终大于 T(au)。随着核心体温的升高，T(au)似乎低估了 T(re)所测量的核心体温。临床医生在评估高温运动个体的核心体温时，应注意这两种测量技术之间的温度差异。
