Krupina T N, Iarullin Kh Kh, Artamonova N P, Gornago V A, Alekseev D A
Kosm Biol Aviakosm Med. 1984 Jul-Aug;18(4):29-32.
In response to simulated space flights cardiovascular and metabolic changes of 86 volunteers, aged 40-49 and 50-56, were similar to those of young people (25-39 years old). In most aged test subjects, the changes produced by 8-day head-down tilt (-8 degrees) and 7-day water immersion were moderate and reversible. This type of variation of the adaptive-compensatory reactions give evidence that aged people have sufficiently high functional capabilities. Nevertheless, 36% test subjects, aged 40-49, and 50% test subjects, aged 50-56, displayed certain features suggesting a reduction of the adaptive-compensatory capabilities (functional reserves) as a result of age-related and atherosclerotic changes of the cardiovascular system.
在针对86名年龄在40 - 49岁和50 - 56岁的志愿者进行的模拟太空飞行实验中，他们心血管和代谢的变化与年轻人（25 - 39岁）相似。在大多数老年受试对象中，8天头低位倾斜（-8度）和7天浸水所产生的变化较为温和且可逆。这种适应性 - 代偿反应的变化类型表明老年人具有足够高的功能能力。然而，40 - 49岁的受试对象中有36%，50 - 56岁的受试对象中有50%，表现出某些特征，提示由于心血管系统的年龄相关变化和动脉粥样硬化改变，其适应性 - 代偿能力（功能储备）有所下降。
