Assessing and training a pilot experienced push-pull manenver induced air G-induced loss of consciousness in human centrifuge and literature review
10.3760/cma.j.issn.1007-6239.2017.03.005
- VernacularTitle:一例空中推拉动作致意识丧失飞行员的载人离心机鉴定训练并文献复习
- Author:
Jiansheng LI
1
;
Yan XU
;
Qinglin ZHOU
;
Longchen MO
;
Baohui LI
;
Yifeng LI
;
Zhao JIN
;
Haixia WANG
;
Lihui ZHANG
;
Xiaoyang WEI
;
Quan WANG
;
Xichen GENG
Author Information
1. 解放军92914部队
- Publication Type:Journal Article
- Keywords:
Acceleration;
Physical endurance;
Unconsciousness;
Human centrifuge training
- From:
Chinese Journal of Aerospace Medicine
2017;28(3):178-182
- CountryChina
- Language:Chinese
-
Abstract:
Objective To probe the causes of pilot's G-induced loss of consciousness (G-LOC) in air induced by push-pull maneuver (PPM) in human centrifuge training and instruct protective measures of push-pull effect (PPE) for pilots to promote the adaptation of PPE.Methods A pilot experienced air G-LOC induced by PPM participated in the basic tolerance determination and PPE training in human centrifuge.Relaxed + Gz tolerance was determined as qualification with 4.25 G sustained for 10 s.PPE protective training included:① 1 Gz/+4 Gz profile:from + 1.4 Gz baseline declined to-1 Gz with the rate of 1 G/s and sustained for 5 s,then climbed to +4 Gz with 2 G/s onset rate and sustained for 10 s.Pilot's suit pressure was 35 kPa.②-1 Gz/+ 5 Gz profile:from +1.4 Gz baseline declined to-1 Gz with the rate of 1 G/s and sustained for 5 s,and then climbed to +5 Gz with 2 G/s onset rate and sustained for 10 s.Pilot's suit pressure was 45 kPa.Relaxed +Gz tolerance,PPE tolerance of pilots and PPE protective effects were analyzed.Results Pilot's relaxed +Gz tolerance was qualified with the normal electrocardiogram and declined but not flattened ear opacity pulse amplitude.PPM protective measures training:①for-1Gz/+ 4Gz profile:pilot completed standard HP straining maneuver in the training.②for-1 Gz/+5 Gz profile:pilot didn't perform HP maneuver when acceleration transferred from-Gz to +Gz.Finally,he corrected to perform proper HP maneuver under the guidance of instructor and completed the training.Conclusions The improper PPE protective measure leads to the pilot's Gr-LOC in air but not the poor +Gz tolerance.Mechanism and protective measures of PPM and PPE should be preached and PPE protective measures training could be a part of human centrifuge training.
