CAJ | 학술논문

目的探讨抗荷正压呼吸(PBG)系统中最佳的PBG压力制度. 方法 5名被试者穿GZ-2抗荷服及中囊代偿背心,在快增长率(3.0 G/s)离心机+Gz暴露时分别进行了1.6、2.4及 3.2 kPa/G 3种压力制度PBG实验.分别测定了3种压力制度PBG的抗荷性能,并对主观感觉进行评分.结果 1.6、2.4及 3.2 kPa/G 3种压力制度PBG的抗荷性能分别为2.00±0.31、2.54±0.32及2.44±0.31G;主观感觉评分表明,2.4 kPa/G压力制度PBG优于其它两者. 结论 PBG系统的压力制度以采用2.4 kPa/G为最佳.这样,既可保证PBG的抗荷性能,又可减轻PBG的副作用.
목적탐토항하정압호흡(PBG)계통중최가적PBG압력제도. 방법 5명피시자천GZ-2항하복급중낭대상배심,재쾌증장솔(3.0 G/s)리심궤+Gz폭로시분별진행료1.6、2.4급 3.2 kPa/G 3충압력제도PBG실험.분별측정료3충압력제도PBG적항하성능,병대주관감각진행평분.결과 1.6、2.4급 3.2 kPa/G 3충압력제도PBG적항하성능분별위2.00±0.31、2.54±0.32급2.44±0.31G;주관감각평분표명,2.4 kPa/G압력제도PBG우우기타량자. 결론 PBG계통적압력제도이채용2.4 kPa/G위최가.저양,기가보증PBG적항하성능,우가감경PBG적부작용.
Objective System of pressure breathing for +Gz (PBG) has been incorporated into service in the high performance fighter aircraft,but there were significant differences among PBG pressure schedules used in different countries.The purpose of this study was to define an optimal pressure schedule in PBG system.Method Five male subjects wearing GZ-2 anti-G suit and medium-sized bladder vest,plus PBG with 1.6,2.4,and 3.2 kPa/G pressure schedules,respectively,were exposed to rapid onset (3.0 G/s) centrifuge +Gz runs.+Gz protection of PBG with each of the three pressure schedules were measured and the subjective ratings were collected.Result The +Gz protection afforded by PBG with 1.60,2.40,and 3.20 kPa/G pressure schedules were 2.00±0.31,2.54±0.32,and 2.44±0.31 G,respectively.Subjective ratings showed that the PBG with 2.40 kPa/G pressure schedule was better than the other two.Conclusion Our data suggest that a PBG pressure schedule of 2.4 kPa/G in PBG system is optimal.It not only assures the anti-G performance of PBG,but also reduces its side effects.