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Space Flight Calcium: Implications for Astronaut Health, Spacecraft Operations, and Earth

Authors
Publisher
Multidisciplinary Digital Publishing Institute
Publication Date
Keywords
  • Bed Rest
  • Bone
  • Calcium
  • Collagen Crosslinks
  • Dual-Energy X-Ray Absorptiometry
  • Space Flight

Abstract

The space flight environment is known to induce bone loss and, subsequently, calcium loss. The longer the mission, generally the more bone and calcium are lost. This review provides a history of bone and calcium studies related to space flight and highlights issues related to calcium excretion that the space program must consider so that urine can be recycled. It also discusses a novel technique using natural stable isotopes of calcium that will be helpful in the future to determine calcium and bone balance during space flight.

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