Pei J, Chang L, Liu Z, Zhang J, Wang C, Song K
Institute of Space Medico-Engineering, Beijing, China.
Space Med Med Eng (Beijing). 1997 Dec;10(6):413-6.
Electrogastography (EGG) was recorded in 15 healthy volunteers before and after meal during 21 days head down tilt -6 degrees bed rest. The results showed that nausea, distension and pain in the abdomen and loss of appetite appeared at the beginning of bed rest and body weight decreased significantly (P < 0. 01) after bed rest; Low frequency (Bradygastria) proportion of EGG (<2.4cpm) increased apparently after 8 days of bedrest, and there was significant difference (P <0.05) between preprandial and postprandial bradygastria. The dynamic parameters of bradygastria declined significantly and the rhythm of bradygastria increased with duration of bedrest. It indicates that simulated weightlessness may cause decrease of gastric rhythm and gastric motility.
在21天-6度头低位卧床休息期间，对15名健康志愿者在饭前和饭后进行了胃电图（EGG）记录。结果显示，卧床休息开始时出现恶心、腹胀、腹痛和食欲不振，卧床休息后体重显著下降（P<0.01）；卧床休息8天后，EGG低频（胃动过缓）比例（<2.4次/分钟）明显增加，饭前和饭后胃动过缓有显著差异（P<0.05）。胃动过缓的动态参数显著下降，且胃动过缓的节律随卧床休息时间延长而增加。这表明模拟失重可能导致胃节律和胃动力下降。
