Hametner, B. and Heusser, K. and Moestl, S. and Gauger, Peter and Limper, Ulrich and Wassertheurer, S. and Tank, J. (2016) Wave reflection, assessed by use of the ARCSolver Algorithm for pulse wave separation, is reduced under acute µg conditions in parabolic flight. 37th Annual International Gravitational Physiology Meeting and the 14th European Life Sciences Symposium, 5-10 June 2016, Toulouse, France.
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Abstract
Weightlessness during long-term space flight over 6-12 months leads to complex individual cardiovascular adaptation. The initial central blood volume expansion followed by a loss of plasma volume is accompanied by changes in vascular mechanoreceptor loads and responsive-ness, altered autonomic reflex control of heart rate and blood pressure, and hormonal changes in the long run. Hence, function and structure of the heart and blood vessels may change. Hemodynamic data obtained during short- and long-term space flight may indicate that the adaptation process resembles ageing of the cardiovascular system characterized by decreased diastolic blood pressure, increased central sympathetic nerve traffic and increased arterial pulse wave velocity. Experiments during parabolic flights in supine position suggest, that stroke volume does not change during transitions between µ-g and 1-g. We tested a novel method of pulse wave separation based on simple oscillometric brachial cuff waveform reading to investigate pulse wave reflection during acute weightlessness in healthy subjects. We hypothesized that the wave reflection magnitude (RM) remains unaltered during parabolic flights in supine position.
Item URL in elib: | https://elib.dlr.de/118743/ | ||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Poster) | ||||||||||||||||||||||||
Title: | Wave reflection, assessed by use of the ARCSolver Algorithm for pulse wave separation, is reduced under acute µg conditions in parabolic flight | ||||||||||||||||||||||||
Authors: |
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Date: | 2016 | ||||||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | Wave reflection; parabolic flight; micro gravity; | ||||||||||||||||||||||||
Event Title: | 37th Annual International Gravitational Physiology Meeting and the 14th European Life Sciences Symposium | ||||||||||||||||||||||||
Event Location: | Toulouse, France | ||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||
Event Dates: | 5-10 June 2016 | ||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||
HGF - Program Themes: | Research under Space Conditions | ||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||
DLR - Program: | R FR - Research under Space Conditions | ||||||||||||||||||||||||
DLR - Research theme (Project): | R - Vorhaben Systemphysiologie (old) | ||||||||||||||||||||||||
Location: | Köln-Porz | ||||||||||||||||||||||||
Institutes and Institutions: | Institute of Aerospace Medicine > Cardiovascular Medicine in Aerospace Institute of Aerospace Medicine > Muscle and Bone Metabolism | ||||||||||||||||||||||||
Deposited By: | Polak, Agnieszka | ||||||||||||||||||||||||
Deposited On: | 14 Mar 2018 10:56 | ||||||||||||||||||||||||
Last Modified: | 31 Jul 2019 20:16 |
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