Arterial baroreflex control of sympathetic vasoconstrictor traffic and orthostatic intolerance after head-down bed rest.

A. Kamiya, D. Michikami, Qi Fu, Y. Niimi, S. Iwase, T. Mano

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The purpose of the present study is to examine the changes in the arterial baroreflex control of muscle sympathetic nerve activity (MSNA) after head-down bed rest (HDBR), in relation to orthostatic hypotension after HDBR. Therefore, we performed 60 degrees head-up tilt (HUT) tests before and after 14 days of HDBR, with monitoring MSNA, heart rate and blood pressure. We calculated the gain of the arterial baroreflex control of MSNA, and compared the gains between the subjects who did (defined as the fainters) and those who did not (defined as the nonfainters) become presyncopal in HUT tests after HDBR.

Original languageEnglish (US)
Pages (from-to)P177-178
JournalJournal of gravitational physiology : a journal of the International Society for Gravitational Physiology
Volume7
Issue number2
StatePublished - Jul 2000

ASJC Scopus subject areas

  • Medicine(all)

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