Stepanova S I, Galichiĭ V A
Institute of Medical-Biological Problems, Russian Acad. Sci., Russia, 123007, Moscow, 76a Khoroshevskoe Shosse.
Ross Fiziol Zh Im I M Sechenova. 2003 Mar;89(3):368-74.
The influence of space-flight factors on the organism's circadian periodicity is discussed. It is shown that in mechanisms of such influence, the transformation of natural structure of Zeitgebers accompanying a space flight, can play the essential role. It is confirmed by the results of ground research carried out in conditions of isolation simulating the usual space flight transformation of Zeitgebers system. The data obtained in the ground researches with isolation, testify that the changes of circadian rhythms in these conditions are similar to those in space flights and frequently are interpreted as the result of influence of weightlessness. Special attention is paid to phenomenon of delay of the daily maximum and to possible connection of this phenomenon with the tendency to transition of rhythmic process in a free-running regime.
讨论了太空飞行因素对生物体昼夜节律的影响。结果表明，在这种影响机制中，伴随太空飞行的授时因子自然结构的转变可能起着至关重要的作用。这一点已通过在模拟太空飞行中授时因子系统通常转变的隔离条件下进行的地面研究结果得到证实。在隔离条件下进行的地面研究中获得的数据表明，这些条件下昼夜节律的变化与太空飞行中的变化相似，并且经常被解释为失重影响的结果。特别关注了每日最大值延迟的现象以及该现象与节律过程向自由运行状态转变趋势的可能联系。
