Solar radiation and the validity of infrared tympanic temperature during exercise in the heat
Solar radiation and the validity of infrared tympanic temperature during exercise in the heat
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DOI：
10.1007/s00484-019-01791-1
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发表时间：
2019-11-09
影响因子：
3.2
通讯作者：
Lee, Jason K. W.
中科院分区：
文献类型：
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作者：
Otani, Hidenori;Kaya, Mitsuharu;Lee, Jason K. W.
我们研究了在太阳辐射变化的高温下运动时红外鼓室温度 (IR-T-ty) 的有效性。八名健康男性在温度为 30 摄氏度、相对湿度为 50% 的环境室中以 70% 峰值摄氧量完成了固定自行车试验，直至耗尽。使用安装在天花板上的太阳模拟器（金属卤化物灯）在 3 x 2 m 的照射区域内测试了三种太阳辐射条件：0、250 和 500 W/m(2)。每次试验中运动前和运动期间的 IR-T-ty 和直肠温度 (T-re) 相似 (P > 0.05)。 Spearman 等级相关系数 (r(s)) 表明，所有试验中 IR-T-ty 和 T-re 之间均具有非常强的相关性（250 W/m(2)，r(s) = 0.87）和强相关性（0 W/m(2)，r(s) = 0.73；500 W/m(2)，r(s) = 0.78）（P < 0.001）。 Bland-Altman 图显示，IR-T-ty 和 T-re 之间的平均差异（SD；95% 一致性限度；均方根误差）在 0 W/m(2) 条件下为 - 0.11 摄氏度（0.46； - 1.00 至 0.78 摄氏度；0.43 +/- 0.16 摄氏度），在 0 W/m(2) 条件下为 - 0.13 摄氏度（0.32； - 0.77 至0.50℃；0.32+/- 250 W/m(2) 时为 0.10 摄氏度，500 W/m(2) 时为 - 0.03 摄氏度（0.60；- 1.21 至 1.14 摄氏度；0.46 +/- 0.27 摄氏度）。在 500 W/m(2)（r(s) = 0.51；P < 0.001）中发现正相关，但在 250 W/m(2)（r(s) = 0.04；P = 0.762）和 0 W/m(2)（r(s) = 0.04；P = 0.732）中没有发现正相关，表明 IR-T-ty 的升高程度高于 T-re 500 W/m(2)。 IR-T-ty 和 T-re 之间达到 +/- 0.3 摄氏度以内目标的百分比在 250 W/m(2) (100 +/- 0%) 中高于 0 (93 +/- 7%) 和 500 (90 +/- 10%；P < 0.05) W/m(2)。 IR-T-ty 适用于在太阳辐射较弱的高温下运动期间监测核心温度。
We investigated the validity of infrared tympanic temperature (IR-T-ty) during exercise in the heat with variations in solar radiation. Eight healthy males completed stationary cycling trials at 70% peak oxygen uptake until exhaustion in an environmental chamber maintained at 30 degrees C with 50% relative humidity. Three solar radiation conditions, 0, 250 and 500 W/m(2), were tested using a ceiling-mounted solar simulator (metal-halide lamps) over a 3 x 2 m irradiated area. IR-T-ty and rectal temperature (T-re) were similar before and during exercise in each trial (P > 0.05). Spearman's rank correlation coefficient (r(s)) demonstrated very strong (250 W/m(2), r(s) = 0.87) and strong (0 W/m(2), r(s) = 0.73; 500 W/m(2), r(s) = 0.78) correlations between IR-T-ty and T-re in all trials (P < 0.001). A Bland-Altman plot showed that mean differences (SD; 95% limits of agreement; root mean square error) between IR-T-ty and T-re were - 0.11 degrees C (0.46; - 1.00 to 0.78 degrees C; 0.43 +/- 0.16 degrees C) in 0 W/m(2), - 0.13 degrees C (0.32; - 0.77 to 0.50 degrees C; 0.32 +/- 0.10 degrees C) in 250 W/m(2) and - 0.03 degrees C (0.60; - 1.21 to 1.14 degrees C; 0.46 +/- 0.27 degrees C) in 500 W/m(2). A positive correlation was found in 500 W/m(2) (r(s) = 0.51; P < 0.001) but not in 250 W/m(2) (r(s) = 0.04; P = 0.762) and 0 W/m(2) (r(s) = 0.04; P = 0.732), indicating a greater elevation in IR-T-ty than T-re in 500 W/m(2). Percentage of target attainment within +/- 0.3 degrees C between IR-T-ty and T-re was higher in 250 W/m(2) (100 +/- 0%) than 0 (93 +/- 7%) and 500 (90 +/- 10%; P < 0.05) W/m(2). IR-T-ty is acceptable for core temperature monitoring during exercise in the heat when solar radiation is