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Effect of change in intrathoracic pressure on thermoregulatory responses during -6 degree head-down bed rest.

Nishimura, N. and Beck, L. and Gauger, Peter and Iwase, Satoshi and Sugenoya, J. (2007) Effect of change in intrathoracic pressure on thermoregulatory responses during -6 degree head-down bed rest. Galileo Foundation. ISSN 1077-9248

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Abstract

We investigated the effect of change in intrathoracic pressure by total body negative pressure (TBNP) or positive pressure (TBPP) on thermoregulatory responses during -6 degree head-down bed rest (HDBR). Eight healthy male subjects participated to three of the following interventions in a randomised sequence: 1) HDBR, 2) HDBR with TBNP of -15 cmH2O, 3) HDBR with TBPP of +15 cmH2O. A rapid decrease of cutaneous blood flow occurred after the start of TBNP. In contrast, cutaneous blood flow increased slightly at TBPP. Sweat rate decreased immediately after the start of TBNP. Immediately after the TBPP was started, tympanic temperature greatly decreased. It is concluded that combination of HDBR and intrathoracic pressure changes thermoregulatory responses through the cardiopulmonary baroreceptor to reduce the wall stretch.

Item URL in elib:https://elib.dlr.de/87987/
Document Type:Proceedings
Title:Effect of change in intrathoracic pressure on thermoregulatory responses during -6 degree head-down bed rest.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Nishimura, N.UNSPECIFIEDUNSPECIFIED
Beck, L.UNSPECIFIEDUNSPECIFIED
Gauger, PeterPeter.Gauger (at) dlr.deUNSPECIFIED
Iwase, SatoshiAichi Medical University, Aichi, JapanUNSPECIFIED
Sugenoya, J.UNSPECIFIEDUNSPECIFIED
Date:August 2007
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:14
Number of Pages:2
Editors:
EditorsEmail
Fuller, Charles A.UNSPECIFIED
Publisher:Galileo Foundation
ISSN:1077-9248
Status:Published
Keywords:thermoregulation, sweat rate, head-down tilt, negative pressure, positive pressure
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Space Physiology
Deposited By: Becker, Christine
Deposited On:04 Feb 2014 08:56
Last Modified:31 Jul 2019 19:45

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