Genin A M, Baranov V M, Shabel'nikov V G, Asiamolova N M, Kotov A N
Kosm Biol Aviakosm Med. 1985 Mar-Apr;19(2):43-6.
Seven healthy volunteers were exposed to head-down tilt at -15 degrees for 5 h. Before and after exposure they exercised on a bicycle ergometer in the supine and seated positions. During the study their respiration function, gas exchange, and arterialized blood parameters were measured. It was found that after exposure the physical aerobic performance diminished. The changes detected suggest that a lower exercise tolerance can be caused not only by a decreased circulating blood volume but also by increased energy expenditures of the cardiorespiratory system itself.
七名健康志愿者接受了-15度头低位倾斜5小时。在暴露前后，他们分别在仰卧位和坐位的自行车测力计上进行运动。在研究过程中，测量了他们的呼吸功能、气体交换和动脉化血液参数。结果发现，暴露后有氧体能表现下降。检测到的变化表明，运动耐力降低不仅可能是由于循环血量减少，还可能是由于心肺系统自身能量消耗增加所致。
