The present study evaluated whether the luteal phase elevation of body temperature would be offset during exercise by increased sweating, when women are normally hydrated. Eleven women performed 60 min of cycling exercise at 60% of their maximal work load at 32 degrees C and 80% relative air humidity. Each subject participated in two identical experimental sessions: one during the follicular phase (between days 5 and 8) and the other during the luteal phase (between days 22 and 25). Women with serum progesterone >3 ng/mL, in the luteal phase were classified as group 1 (N = 4), whereas the others were classified as group 2 (N = 7). Post-exercise urine volume (213 +/- 80 vs 309 +/- 113 mL) and specific urine gravity (1.008 +/- 0.003 vs 1.006 +/- 0.002) changed (P < 0.05) during the luteal phase compared to the follicular phase in group 1. No menstrual cycle dependence was observed for these parameters in group 2. Sweat rate was higher (P < 0.05) in the luteal (3.10 +/- 0.81 g m-2 min-1) than in the follicular phase (2.80 +/- 0.64 g m(-2) min(-1)) only in group 1. During exercise, no differences related to menstrual cycle phases were seen in rectal temperature, heart rate, rate of perceived exertion, mean skin temperature, and pre- and post-exercise body weight. Women exercising in a warm and humid environment with water intake seem to be able to adapt to the luteal phase increase of basal body temperature through reduced urinary volume and increased sweating rate.

译文

:本研究评估了在正常情况下为女性补充水分时,出汗增加是否可以抵消黄体期体温的升高。十一名女性在32摄氏度和80%的相对湿度下以最大工作负荷的60%进行了60分钟的自行车运动。每个受试者都参加了两个相同的实验会议:一个在卵泡期(第5至8天之间),另一个在黄体期(第22至25天之间)。黄体期血清孕酮> 3 ng / mL的妇女被分类为第1组(N = 4),而其他人被分类为第2组(N = 7)。与第1组的卵泡期相比,黄体期运动后的尿量(213 /-80 vs 309 /-113 mL)和比重(1.008 /-0.003 vs 1.006 /-0.002)发生了变化(P <0.05) 。在第2组中,没有观察到这些参数对月经周期的依赖性。黄体(3.10 /-0.81 g m-2 min-1)的发汗率高于卵泡期(2.80 /-0.64 gm)(P <0.05) (-2)min(-1))仅在第1组中。运动期间,在直肠温度,心率,感知的劳累率,平均皮肤温度以及运动前后,与月经周期相关的差异均未发现体重。在温暖和潮湿的环境中进行饮水运动的妇女似乎能够通过减少尿量和增加出汗率来适应黄体期基础体温的升高。

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