Human Health and Performance Directorate, NASA Lyndon B. Johnson Space Center, Houston, TX 77058, USA.
Nutrients. 2012 Dec 18;4(12):2047-68. doi: 10.3390/nu4122047.
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.
太空飞行环境已知会导致骨质流失，进而导致钙流失。任务时间越长，通常骨质和钙流失越多。本综述提供了与太空飞行相关的骨和钙研究的历史，并强调了太空计划必须考虑的与钙排泄相关的问题，以便可以回收尿液。它还讨论了一种使用钙的天然稳定同位素的新技术，该技术将有助于未来确定太空飞行期间的钙和骨平衡。
