CAJ | 학술논문

目的观察受试者做HP和L-1抗荷动作时的肺通气参数变化,了解其呼吸生理学特点以及对氧气系统流量的需求,为飞行员抗荷动作训练及供氧装备研制的生理学要求提供参考依据.方法利用呼吸功能自动分析仪,检测10名男性健康志愿者在安静状态下及做抗荷动作时的呼吸频率、呼气量、吸气量、呼气流率峰值、吸气流率峰值和最大通气量. 结果 HP抗荷动作的呼吸频率、呼气量、呼气流率峰值和最大通气量均显著大于L-1抗荷动作(P＜0.01);两种动作的吸气量和吸气流率峰值差异无统计学意义(P＞0.05).在不戴面罩情况下,L-1抗荷动作和HP抗荷动作的吸气流率峰值分别是(300.31±72.08) L/min及(281.00±86.56) L/min. 结论做HP和L-1抗荷动作时吸气相的肺通气参数对氧气系统最大瞬间流量的要求基本一致.HP抗荷动作的呼吸频率较快,应加强指导飞行员进行+Gz暴露时控制好呼吸节奏.为充分满足做HP和L-1抗荷动作的呼吸需求,氧气系统的最大瞬间流量应大于300 L/min.戴面罩做这两种抗荷动作时肺功能参数的变化有待进一步深入研究.
목적 관찰수시자주HP화L-1항하동작시적폐통기삼수변화,료해기호흡생이학특점이급대양기계통류량적수구,위비행원항하동작훈련급공양장비연제적생이학요구제공삼고의거.방법 이용호흡공능자동분석의,검측10명남성건강지원자재안정상태하급주항하동작시적호흡빈솔、호기량、흡기량、호기류솔봉치、흡기류솔봉치화최대통기량. 결과 HP항하동작적호흡빈솔、호기량、호기류솔봉치화최대통기량균현저대우L-1항하동작(P＜0.01);량충동작적흡기량화흡기류솔봉치차이무통계학의의(P＞0.05).재불대면조정황하,L-1항하동작화HP항하동작적흡기류솔봉치분별시(300.31±72.08) L/min급(281.00±86.56) L/min. 결론 주HP화L-1항하동작시흡기상적폐통기삼수대양기계통최대순간류량적요구기본일치.HP항하동작적호흡빈솔교쾌,응가강지도비행원진행+Gz폭로시공제호호흡절주.위충분만족주HP화L-1항하동작적호흡수구,양기계통적최대순간류량응대우300 L/min.대면조주저량충항하동작시폐공능삼수적변화유대진일보심입연구.
Objective To explore the pulmonary ventilation characters of performing HP and L 1 anti-G maneuvers,to determine the flow requirement for oxygen system design,and to provide references to the pilot anti-G straining maneuver training and physiological requirements for oxygen system development.Methods Ten male subjects were trained on ground by HP and L-1 maneuvers and the pulmonary ventilation parameters were recorded as follows:respiratory frequency,expiratory volume,inspiratory volume,peak expiratory flow rate (PEFR),peak inspiratory flow rate (PIFR),and maximal voluntary ventilation (MVV).Results The respiratory frequency,expiratory volume,PEFR and MVV of performing HP maneuver were higher than those of performing L-1 maneuvers (P＜0.01).The differences of inspiratory volume and PIFR between performing L-1 and HP maneuver were not significantly (P ＞ 0.05).Without the oxygen-mask wearing,the PIFR of performing HP and L-1 maneuvers was (300.31 ± 72.08) L/min and (281.00 ± 86.56) L/min respectively.Conclusions The demands of performing HP and L-1 maneuvers to the peak flow of oxygen system are almost same because of the similar characters in inspiration period.The faster respiratory rate of performing HP maneuver indicates that the pilots should be guided to keep the right frequency during +Gz exposure.In order to completely meet the needs of respiratory demands of performing HP and L-1 maneuvers,the peak flow of oxygen system should be more than 300 L/min.The variation of pulmonary ventilation parameters when performing the maneuvers together with mask oxygen supply needs further investigation.