CAJ | 학술논문

目的：观察16名战斗机飞行员在+4 Gz作用下心血管系统反应的特点，为航天员+4 Gz耐力选拔训练提供参考。方法在人体离心机上对16名男性战斗机飞行员进行+4 Gz，持续30 s检查，并实时监测多种生理指标的变化。结果与试验前比较，16名战斗机飞行员心率（HR）、心水平动脉血压（BP）、心搏出量（SV）、血流阻力（TPR）等均发生了显著性升高（P＜0.01），但心输出量（CO）变化不显著；根据HR变化特点，区分出了两种HR反应类型；血氧饱和度明显降低（P＜0.01），并在下降段达到最低；脉搏波幅总体上出现降低的趋势，但有两种不同的反应类型，且两种类型的血压反应差异均有统计学意义（P＜0.05）。结论+4 Gz作用下飞行员多项心血管指标发生了显著性变化，且均存在不同特点，在航天员选拔和训练中应关注这些差异。本研究结果可为做好航天员选拔、训练和医学监督与医学保障工作提供试验依据。
목적：관찰16명전두궤비행원재+4 Gz작용하심혈관계통반응적특점，위항천원+4 Gz내력선발훈련제공삼고。방법재인체리심궤상대16명남성전두궤비행원진행+4 Gz，지속30 s검사，병실시감측다충생리지표적변화。결과여시험전비교，16명전두궤비행원심솔（HR）、심수평동맥혈압（BP）、심박출량（SV）、혈류조력（TPR）등균발생료현저성승고（P＜0.01），단심수출량（CO）변화불현저；근거HR변화특점，구분출료량충HR반응류형；혈양포화도명현강저（P＜0.01），병재하강단체도최저；맥박파폭총체상출현강저적추세，단유량충불동적반응류형，차량충류형적혈압반응차이균유통계학의의（P＜0.05）。결론+4 Gz작용하비행원다항심혈관지표발생료현저성변화，차균존재불동특점，재항천원선발화훈련중응관주저사차이。본연구결과가위주호항천원선발、훈련화의학감독여의학보장공작제공시험의거。
Objective We aimed to observe the cardiovascular characteristics of 16 battle plane pilots under the effect of+4 Gz impact and assess the training method of hyper-gravity tolerance. Methods 16 male battle plane pilots did+Gz tolerance test by an automatic centrifuge. Their physiological indexes including heart rate (HR), blood pressure (BP), stroke volume (SV),cardiac output (CO), total peripheral resistance (TPR) and pulse wave(PW) et al were recorded simultaneously during the training. Results Compared with that of pre-test, significant elevation appeared on HR, BP, SV and TPR with the exception of CO (P<0.01). There were two types of changing HR during platform period. The tendency of Saturation O2 showed obvious decline which arrived at the minimum during the descending period. The amplitude of PW showed the decrease in general in two different types. There appeared significant difference in the changes of BP in the two types. Conclusion Human physiological indexes changed significantly under the effect of+4 Gz, which reflected various cardiovascular responding characteristics. The present research is useful for astronaut selection and medical support.