Zhang S X, Guo H Z, Zhu J, Jing B S
Institute of Aviation Medicine, Air Force, People's Liberation Army of China, Beijing.
Aviat Space Environ Med. 1994 Nov;65(11):986-91.
Based on the characteristics of respiration and the intrathoracic pressure in Qigong (Q-G) maneuvering, it has been theorized that the Q-G maneuver may lessen the lack of coordination between aircraft oxygen apparatus and anti-G maneuvers and may be more compatible with positive pressure breathing (PPB). In an experiment intended to test this hypothesis, 5 male volunteers, trained in Q-G and L-1 maneuvers, performed the Q-G and the L-1 maneuvers without and with (PPB) at 4 and 6 kPa, respectively, with 14 respiratory parameters being measured. The results demonstrated that, when performing Q-G maneuver, the maximal expiratory flow rate averaged 1.175-1.645 L.s-1, the inspiratory peak flow, 1.003-1.297 L.s-1. Both these values were markedly lower than those of the L-1 maneuver, and matched well the performance of current aircraft oxygen apparatus. From the blood pressure and heart rate values, it is evident that PPB can further promote the blood pressure-raising effect of the Q-G maneuver, and alleviate pilots' fatigue.
基于气功（Q-G）动作中呼吸和胸内压的特点，理论上认为Q-G动作可能会减少飞机氧气设备与抗荷动作之间的协调性不足，并且可能与正压呼吸（PPB）更兼容。在一项旨在验证这一假设的实验中，5名接受过Q-G和L-1动作训练的男性志愿者分别在无正压呼吸以及4千帕和6千帕正压呼吸的情况下进行Q-G和L-1动作，同时测量14项呼吸参数。结果表明，在进行Q-G动作时，最大呼气流量平均为1.175 - 1.645升·秒⁻¹，吸气峰值流量为1.003 - 1.297升·秒⁻¹。这两个值均明显低于L-1动作的值，并且与当前飞机氧气设备的性能匹配良好。从血压和心率值来看，很明显正压呼吸可以进一步增强Q-G动作的升压效果，并减轻飞行员的疲劳。
