The relationship between thermoregulatory and haemodynamic responses of the skin to relaxation and stress

Author

Nketia, Paul ; Reisman, Stanley

Author_Institution

Biomed. Eng. Program, New Jersey Inst. of Technol., Newark, NJ, USA

fYear

1997

fDate

21-22 May 1997

Firstpage

27

Lastpage

28

Abstract

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±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

Keywords

biocontrol; biothermics; haemodynamics; skin; arterial blood volume; eyes closed relaxation; finger arterioles; finger blood volume; fingertip temperature; haemodynamic response; peripheral blood volume; photoplethysmograph; relaxation; skin; stress; stressful state; thermistor; thermoregulatory response; vasoconstricted; vasodilated; venous blood volume; Blood flow; Eyes; Fingers; Human factors; Skin; Temperature; Thermal stresses; Thermistors; Volume measurement; Volume relaxation;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 1997., Proceedings of the IEEE 1997 23rd Northeast

Conference_Location

Durham, NH

Print_ISBN

0-7803-3848-0

Type

conf

DOI

10.1109/NEBC.1997.594941

Filename

594941