Astronaut's Energy Requirements for Long-Term Space Flight (Energy) - 02.18.15

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Energy investigation measures an Astronaut's Energy Requirements for Long-Term Space Flight, a crucial factor needed for sending the correct amount of the right types of food with space crews. Nine astronauts will be examined during exercise and rest cycles three months before launch, three months after arriving at space station and adapting to the space environment, and after return to Earth. Physicians will measure metabolic rates, urine content, and bone density to determine energy needs.
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Information Pending

The following content was provided by Stephane Blanc, Ph.D., and is maintained in a database by the ISS Program Science Office.
Information provided courtesy of the Erasmus Experiment Archive.
Experiment Details

OpNom: Energy

Principal Investigator(s)

  • Stephane Blanc, Ph.D., Institut Pluridisciplinaire Hubert Curien, Strasbourg, France

  • Co-Investigator(s)/Collaborator(s)
  • Alexandre Zahariev, Centre d'Ecologie et de Physiologie Energetiques, Strasbourg, France
  • M. Caloin, France

  • Developer(s)
    Centre d'Ecologie et Physiologie Energetiques, Strasbourg, France

    Sponsoring Space Agency
    European Space Agency (ESA)

    Sponsoring Organization
    Information Pending

    Research Benefits
    Information Pending

    ISS Expedition Duration
    May 2012 - Ongoing

    Expeditions Assigned

    Previous ISS Missions
    Information Pending

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    Experiment Description

    Research Overview

    • With the construction of the International Space Station and the related planned long-term human missions beyond low Earth orbit, the interest in nutrition as a countermeasure to the effects of space flight has increased dramatically. A growing body of data suggests a direct relationship between nutrition and the effects of space.

    • The maintenance of energy balance appears critical but difficult during space flight. Clearly the determination of energy requirements is necessary for recommending healthy nutrition in weightlessness.

    • Astronaut's Energy Requirements for Long-Term Space Flight (Energy) measures changes in energy balance after long term spaceflight, adaptations in the components of the total energy expenditure and derive an equation for the energy requirements of astronauts.

    Astronaut's Energy Requirements for Long-Term Space Flight (Energy) determines the crewmembers energy requirements for long-term space flight. There is no compensation for severe negative energy balance during space flight.. This energy deficit affects all physiological functions. Energy  measures changes in energy balance after long-term space flight, adaptations in the components of the total energy expenditure, and help to derive an equation for the energy requirements of crewmembers. 

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    Space Applications
    Astronauts often lose body mass with extended stays in space for reasons that remain unclear, although increased exercise as a microgravity countermeasure may be a factor. Knowing details of astronaut metabolism and activity, combined with other conditions, will help ensure that crews are properly nourished on long missions.

    Earth Applications
    Extended bed rest due to age or illness has some parallels to a proper energy balance. Improved understanding from space missions will help in assessing patient needs on Earth.

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    Operational Requirements
    Information Pending

    Operational Protocols
    Information Pending

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    Results/More Information

    This is the first mission incorporating Energy operations.

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    Results Publications

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    Ground Based Results Publications

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    ISS Patents

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    Related Publications

      Bergouignan A, Momken I, Schoeller DA, Normand S, Zahariev A, Lescure B, Simon C, Blanc S.  Regulation of energy balance during long-term physical inactivity induced by bed rest with and without exercise training. Journal of Clinical Endocrinology and Metabolism. 2010 March; 95(3): 1045-1053. DOI: 10.1210/jc.2009-1005.

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    Related Websites

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    image NASA Image: ISS033E010000 - Japan Aerospace Exploration Agency astronaut Aki Hoshide,Expedition 33 flight engineer,conducts an Oxygen Uptake Measurement (OUM) for the ESA experiment ENERGY in the Columbus laboratory of the International Space Station. A G1s camcorder is visible in the in upper left corner .
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