The relationship between thermoregulatory and haemodynamic responses of the skin to relaxation and stress
The relationship between thermoregulatory and haemodynamic responses of the skin to relaxation and stress
复制标题
皮肤对放松和压力的体温调节和血液动力学反应之间的关系
DOI：
10.1109/nebc.1997.594941
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
S. Reisman
中科院分区：
文献类型：
--
作者：
P. Nketia;S. Reisman
本研究探讨了压力和放松对外周血容量的影响。分别用光电容积描记器和热敏电阻测量指尖静脉血和动脉血容量及指尖温度。9例指尖血容量与温度的峰值相关系数的平均值为0.9236/spl plusmn/0.0408。手指温度紧随手指血容量，但速度较慢。闭眼放松时指尖血容量和指尖温度升高，而压力状态时指尖血容量和指尖温度降低。静脉血容量（温度）的变化对应于动脉血容量幅度的变化。因此，在放松过程中，手指小动脉血管舒张，在应力过程中，它们血管收缩。
The present study investigated the effects of stress and relaxation on peripheral blood volume. Venous and arterial blood volume, and temperature of the fingertips were measured by photoplethysmograph and thermistor, respectively. The mean of the peak cross correlation between the blood volume and the temperature of the fingertips of the nine cases studied was 0.9236/spl plusmn/0.0408. The finger temperature closely followed that of the finger blood volume but at a slower rate. The blood volume and the temperature of the fingertip increased during eyes closed relaxation, but decreased during stressful state. Changes in venous blood volume (temperature), corresponded to changes in the amplitude of the arterial blood volume. Thus, during relaxation the finger arterioles were vasodilated, and during stress they were vasoconstricted.