Effect of menstrual cycle phase on the ventilatory response to rising body temperature during exercise
Effect of menstrual cycle phase on the ventilatory response to rising body temperature during exercise
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DOI：
10.1152/japplphysiol.01199.2011
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发表时间：
2012-07-01
影响因子：
3.3
通讯作者：
Suzuki, Yuichi
中科院分区：
文献类型：
--
作者：
Hayashi, Keiji;Kawashima, Takayo;Suzuki, Yuichi
Hayashi K、Kawashima T、Suzuki Y。月经周期阶段对运动期间体温升高通气反应的影响。 J Appl Physiol 113: 237-245, 2012。首次发表于 2012 年 5 月 17 日； doi: 10.1152/japplphyol.01199.2011.-为了检查月经周期对体温升高的通气敏感性的影响，十名健康女性在周期测力计上在卵泡期和黄体期以 50% 峰值摄氧量锻炼了大约 60 分钟。黄体期基线和运动期间的食道温度、平均皮肤温度、平均体温、每分钟通气量和潮气量均显着高于卵泡期。另一方面，黄体期运动期间二氧化碳的潮气末分压显着低于卵泡期。绘制通气参数与食道温度的关系表明，回归线的斜率或截距不存在与月经周期相关的显着差异，尽管在轻度高热运动期间每分钟通气量和潮气量确实存在显着差异。为了评估皮肤血管舒张反应，将相对激光多普勒血流测定值与平均体温作图，结果表明，黄体期皮肤血管舒张的平均体温阈值显着高于卵泡期，但敏感性或峰值没有显着差异。这些结果表明，月经周期阶段影响运动期间的皮肤血管舒张反应以及休息时和轻度高热运动期间的通气反应，但不影响中度高热运动期间的通气反应。
Hayashi K, Kawashima T, Suzuki Y. Effect of menstrual cycle phase on the ventilatory response to rising body temperature during exercise. J Appl Physiol 113: 237-245, 2012. First published May 17, 2012; doi: 10.1152/japplphysiol.01199.2011.-To examine the effect of menstrual cycle on the ventilatory sensitivity to rising body temperature, ten healthy women exercised for similar to 60 min on a cycle ergometer at 50% of peak oxygen uptake during the follicular and luteal phases of their cycle. Esophageal temperature, mean skin temperature, mean body temperature, minute ventilation, and tidal volume were all significantly higher at baseline and during exercise in the luteal phase than the follicular phase. On the other hand, end-tidal partial pressure of carbon dioxide was significantly lower during exercise in the luteal phase than the follicular phase. Plotting ventilatory parameters against esophageal temperature revealed there to be no significant menstrual cycle-related differences in the slopes or intercepts of the regression lines, although minute ventilation and tidal volume did significantly differ during exercise with mild hyperthermia. To evaluate the cutaneous vasodilatory response, relative laser-Doppler flowmetry values were plotted against mean body temperature, which revealed that the mean body temperature threshold for cutaneous vasodilation was significantly higher in the luteal phase than the follicular phase, but there were no significant differences in the sensitivity or peak values. These results suggest that the menstrual cycle phase influences the cutaneous vasodilatory response during exercise and the ventilatory response at rest and during exercise with mild hyperthermia, but it does not influence ventilatory responses during exercise with moderate hyperthermia.