患者平卧位、俯卧位或坐位。
站位时足踝动脉血压均高于平卧位时肱动脉血压（P<0.05）。
Results:The ankle artery blood pressure in standing position was higher than brachial artery blood pressure in prostration station(P<0.05).
以平卧位右上肢肱动脉无创血压为标准，术前和术后2周、3个月进行观察。
The non invasive blood pressure of right upper limb was measured before and 2 weeks, 3 months after the operation.
在快速序列插管时，平卧位所造成的肺后叶的肺不张可导致肺容量和肺氧储备量减低，使窒息时间缩短。
The supine position during rapid sequence intubation may result in posterior lung atelectasis thereby reducing lung volumes, oxygenation reserve, and ultimately apnea time.
当患者取平卧放松位时，结果所测得应力值比站立时少30%。
When the patients were lying in relaxed positions, resultant forces were less than 30% of the values during standing.
当患者取平卧放松位时，结果所测得应力值比站立时少30%。
When the patients were lying in relaxed positions, resultant forces were less than 30% of the values during standing.
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