On the Rhythm of the Body Temperature Regulation

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概要

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• The fluctuations and rhythms in the peripheral blood flow are studied by means of spectral analysis on the blood content measured indirectly by a non-invasive technique of digital photoplethysmography. The power spectral density of digit blood content fluctuation reveals a clearly distinguishable peak at 0.05Hz, which may be related to thermoregulation rhythm, i. e. the rhythm of the body temperature regulation, in peripheral vasomotor tone. It is shown that the intensity of spectral peak at 0.05Hz varies remarkably depending on the various physiological situations, such as postural changes (standing, sitting and supine), sleep states (non-REM sleep and REM sleep) and cigarette smoking. It is suggested that both the sympathetic nervous system and the renin-angiotensin system mediate peripheral blood flow fluctuations at the frequency of 0.05Hz.

• 東海大学の論文

著者

• Endo Jyunichi

  Department Of Applied Physics

• Sako Okitsugu

  Department Of Applied Physics

• ITO Hidenori

  Course of Applied Science

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