Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Metabolic energy required for flight.

H W Lane1, R J Gretebeck

  • 1Biomedical Operations and Research Branch, NASA Johnson Space Center, Houston, TX 77058, USA.

Advances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)
|January 1, 1994
PubMed
Summary

Astronauts may lose lean body mass in space despite adequate energy intake. Research suggests spaceflight alters energy metabolism, impacting blood glucose and insulin levels.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Variability of zinc concentrations in human stimulated parotid saliva.

Biological trace element research·2013
Same author

Zinc concentrations in hair, plasma, and saliva and changes in taste acuity of adults supplemented with zinc.

Biological trace element research·2013
Same author

Stage specificity of selenium-mediated inhibition of mouse mammary tumorigenesis.

Biological trace element research·2013
Same author

Effect of caffeine on LT, VT and HRVT.

International journal of sports medicine·2012
Same author

Use of heart rate variability to estimate LT and VT.

International journal of sports medicine·2008
Same author

Simulated microgravity [bed rest] has little influence on taste, odor or trigeminal sensitivity.

Journal of sensory studies·2002

Area of Science:

  • Space biology
  • Human physiology
  • Metabolic research

Background:

  • Energy metabolism and nutrient utilization are critical for astronaut health during space missions.
  • Previous studies indicate potential alterations in metabolic processes during microgravity exposure.

Purpose of the Study:

  • To review available data on energy metabolism in microgravity from U.S. and U.S.S.R. studies.
  • To identify changes in energy utilization, availability, and body composition during space flight.

Main Methods:

  • Review of existing U.S. and U.S.S.R. research data on spaceflight metabolic studies.
  • Analysis of metabolic parameters including energy balance, nitrogen balance, blood glucose, fatty acids, and insulin levels.

Main Results:

Keywords:
NASA Center JSCNASA Discipline Number 00-00NASA Discipline Number 18-10NASA Discipline Regulatory PhysiologyNASA Experiment Number DSO612NASA Program FlightNASA Program Space Physiology and Countermeasures

Related Experiment Videos

  • Energy utilization and availability in space appear similar to Earth conditions.
  • Negative nitrogen balance observed despite adequate energy and protein intake, suggesting lean body mass reduction.
  • Changes in blood glucose, fatty acids, and insulin levels indicate potential alterations in energy metabolism during flight.

Conclusions:

  • Spaceflight may lead to a decrease in lean body mass, even with sufficient nutrition and exercise.
  • Further research is needed to understand the interplay between lean body mass, diet, and exercise in spaceflight energy metabolism.