Vasomotor response of the human face: laser-Doppler measurements during mild hypo- and hyperthermia.
Vasomotor response of the human face: laser-Doppler measurements during mild hypo- and hyperthermia.
复制标题
人脸的血管舒缩反应：轻度低温和高温期间的激光多普勒测量。
DOI：
10.1111/j.1748-1716.1993.tb09518.x
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
M. Cabanac
中科院分区：
文献类型：
--
作者：
W. Rasch;M. Cabanac
面部皮肤被认为不会响应于冷应激而血管收缩，因为面部皮肤温度在低温期间保持稳定。本工作的目的是测量人体面部对全身低温的血管反应，并将其与高温进行比较。6名男性受试者分别浸泡在冷水和温水中，以获得这两种条件。皮肤血流量，蒸发和皮肤温度（Tsk）记录在三个位点的脸，前额，眶下区，和脸颊。鼓膜（Tty）和食道（脚趾）温度也记录在不同的热状态。正常体温测量作为对照。用激光多普勒流量计记录血流量，用蒸发仪测量蒸发量。在正常体温、低体温和体温过高之间，Face Tsk保持稳定。然而，面部血流并不遵循相同的模式。当受试者的状况从正常体温变为体温过低时，面部血流量保持在最低的血管收缩水平。当条件从体温过低变为体温过高时，记录到血流量增加3至9倍。从这些结果可以得出结论，血管收缩似乎是在正常体温期间面部的一般血管收缩状态。
The skin of the face is reputed not to vasoconstrict in response to cold stress because the face skin temperature remains steady during hypothermia. The purpose of the present work was to measure the vasomotor response of the human face to whole-body hypothermia, and to compare it with hyperthermia. Six male subjects were immersed in cold and in warm water to obtain the two conditions. Skin blood flow, evaporation, and skin temperature (Tsk) were recorded in three loci of the face, the forehead, the infra orbital area, and the cheek. Tympanic (Tty) and oesophageal (Toes) temperatures were also recorded during the different thermal states. Normothermic measurements served as control. Blood flow was recorded with a laser-Doppler flowmeter, evaporation measured with an evaporimeter. Face Tsk remained stable between normo-, hypo-, and hyperthermia. Facial blood flow, however, did not follow the same pattern. The facial blood flow remained at minimal vasoconstricted level when the subjects' condition was changed from normo- to hypothermia. When the condition changed from hypo- to hyperthermia a 3 to 9-fold increase in the blood flow was recorded. From these results it was concluded that a vasoconstriction seems to be the general vasomotor state in the face during normothermia.
运动中人体的冷空气吸入和食道温度。
影响因子：
4.1
作者：
Jaeger,JJ;DealJr,EC;Roberts,DE;IngramJr,RH;McFaddenJr,ER
通讯作者：
McFaddenJr,ER