Document Detail


Nutrient supply during recent European missions.
MedLine Citation:
PMID:  11200986     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An inadequate nutrient intake during space flight may compromise the crewmembers' health status. In fact, during recent European missions (D-2, EuroMIR 94 and EuroMIR 95), monitoring of the astronauts' food intake revealed that they had a deficient energy, fluid, and calcium intake and an excessive sodium consumption compared to the dietary reference intakes for earthbound conditions. Inappropriate amounts of these nutrients have a considerable impact on body fluid regulation, the cardiovascular system and on calcium and bone metabolism, especially bone mineral density, which are all stressed by the microgravity environment. Provision of adequate nutrition especially when facing long-term space flights is therefore one of the foremost challenges. Therefore, for the German MIR 97 mission, we considered the data obtained from previous European missions to devise a constant and controlled nutrient intake that matched the earthbound dietary reference intake values in our experiments. Specific markers indicated that bone formation continually declined and bone resorption increased in the MIR 97 astronaut. This suggests that the nutritional criteria chosen for the subjects remaining on Earth may be inadequate for extended space missions. Therefore, more emphasis has to be placed on investigating the effects of a deficient nutrient intake on astronauts during exposure to microgravity, to manage their nutritional care appropriately during long-term missions.
Authors:
M Heer; A Boerger; N Kamps; C Mika; C Korr; C Drummer
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pflügers Archiv : European journal of physiology     Volume:  441     ISSN:  0031-6768     ISO Abbreviation:  Pflugers Arch.     Publication Date:  2000  
Date Detail:
Created Date:  2001-01-26     Completed Date:  2001-03-15     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0154720     Medline TA:  Pflugers Arch     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  R8-14     Citation Subset:  IM; S    
Affiliation:
DLR-Institute of Aerospace Medicine, Cologne, Germany. martina.heer@dlr.de
Space Flight Mission:
Flight Experiment; Mir Project; STS-55 Shuttle Project; Soyuz TM20 Project; Soyuz TM22 Project; Soyuz TM25 Project; long duration; manned; short duration
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MeSH Terms
Descriptor/Qualifier:
Adult
Calcification, Physiologic / drug effects,  physiology
Calcium, Dietary / administration & dosage
Dietary Proteins / administration & dosage
Drinking
Eating
Energy Metabolism / drug effects,  physiology*
Europe
Humans
Nutrition Assessment*
Sodium, Dietary / administration & dosage
Space Flight*
Vitamin D / administration & dosage
Chemical
Reg. No./Substance:
0/Calcium, Dietary; 0/Dietary Proteins; 0/Sodium, Dietary; 1406-16-2/Vitamin D

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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