Smirnov K V, Petrusenko A N, Menshchikov A P
Kosm Biol Aviakosm Med. 1984 May-Jun;18(3):34-8.
After overnight fasting test subjects exposed to head-down tilt showed an increase in the amplitude of stomach biopotentials, thus suggesting an increase in its contractile force. A provocative food test demonstrated an increase in the excitability of the stomach neuromuscular apparatus due to 30-day head-down tilt, which included an increment of contraction amplitudes and rates. The amplitude increase occurred both before and after food intake. However, an analysis of the wave amplitude composition showed a shift to the right which was most distinct in the fasting state. This indicated that the stomach motor activity in the digestive period showed greater resistance to head-down tilt. An increase in the asymmetry coefficient before and after food intake proportional to the head-down tilt duration suggests that the stomach evacuatory activity was inhibited.
在经过一夜禁食后，接受头低位倾斜的受试者胃生物电位振幅增加，这表明其收缩力增强。一项激发性食物测试表明，由于30天的头低位倾斜，胃神经肌肉装置的兴奋性增加，包括收缩幅度和速率的增加。进食前后均出现幅度增加。然而，对波幅成分的分析显示向右偏移，这在禁食状态下最为明显。这表明消化期胃的运动活动对头低位倾斜具有更大的抵抗力。进食前后不对称系数的增加与头低位倾斜持续时间成正比，表明胃排空活动受到抑制。
