Changes in cerebral oxygenation during parabolic flight

Stefan Schneider; V Abeln; Christopher D Askew; T Vogt; U Hoffmann; P Denise; H K Struder

doi:10.1007/s00421-013-2588-9

Back

Changes in cerebral oxygenation during parabolic flight

Journal article

Peer reviewed

Changes in cerebral oxygenation during parabolic flight

Stefan Schneider, V Abeln, Christopher D Askew, T Vogt, U Hoffmann, P Denise and H K Struder

European Journal of Applied Physiology, Vol.113(6), pp.1617-1623

2013

DOI: https://doi.org/10.1007/s00421-013-2588-9

Files and links (1)

url

https://doi.org/10.1007/s00421-013-2588-9View

Published Version

Abstract

NIRS

microgravity

hypergravity

prefrontal cortex

Assessing changes in brain activity under extreme conditions like weightlessness is a desirable, but difficult undertaking. Results from previous studies report specific changes in brain activity connected to an increase or decrease in gravity forces. Nevertheless, so far it remains unclear (1) whether this is connected to a redistribution of blood volume during micro- or hypergravity and (2) whether this redistribution might account for neurocognitive alterations. This study aimed to display changes in brain oxygenation caused by altered gravity conditions during parabolic flight. It was hypothesized that an increase in gravity would be accompanied by a decrease in brain oxygenation, whereas microgravity would lead to an increase in brain oxygenation. Oxygenized and deoxygenized haemoglobin were measured using two near infrared spectroscopy (NIRS) probes on the left and right prefrontal cortex throughout ten parabolas in nine subjects. Results show a decrease of 1.44 μmol/l in oxygenized haemoglobin with the onset of hypergravity, followed by a considerable increase during microgravity (up to 5.34 μmol/l). In contrast, deoxygenized haemoglobin was not altered during the first but only during the second hypergravity phase and showed only minor changes during microgravity. Changes in oxygenized and deoxygenized haemoglobin indicate an increase in arterial flow to the brain and a decrease in venous outflow during microgravity.

Details

Title: Changes in cerebral oxygenation during parabolic flight
Authors: Stefan Schneider (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
V Abeln (Author) - German Sports Institute, Germany
Christopher D Askew (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
T Vogt (Author) - German Sports Institute, Germany
U Hoffmann (Author) - German Sports Institute, Germany
P Denise (Author) - Université de Caen Basse-Normandie, France
H K Struder (Author) - German Sports Institute, Germany
Publication details: European Journal of Applied Physiology, Vol.113(6), pp.1617-1623
Publisher: Springer
Date published: 2013
DOI: 10.1007/s00421-013-2588-9
ISSN: 1439-6319
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy; School of Health - Sports & Exercise Science; School of Health and Behavioural Sciences - Legacy
Language: English
Record Identifier: 99450239802621
Output Type: Journal article

Metrics

5 File views/ downloads

659 Record Views

22 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Physiology; Sport Sciences

UN Sustainable Development Goals (SDGs)

This output has contributed to the advancement of the following goals:

Source: InCites