Application and protective efficacy of normobaric hypoxic inhalation training in aviation troops during high-altitude deployment
MIAO Pu
JI Yaoxuan
JIAO Bo
BAI Yungang
LU Zhihong
LIU Yong
WANG Yunying
Abstract：Objective To evaluate the protective effect of hypoxic gas inhalation acclimatization training against acute mountain sickness(AMS)in aviation troops during high-altitude deployment.Methods Using a hypoxic gas tolerance testing and training system,a hypoxic gas mixture with an oxygen concentration of 14.2%was prepared to simulate a hypoxic environment at 3 400 m above sea level.A one-week hypoxic acclimatization training regimen was conducted,consisting of 1-hour sessions daily.The protective effect was assessed by monitoring physiological indicators(blood oxygen saturation,heart rate)combined with a questionnaire survey on AMS symptoms.Results The acclimatization training significantly increased blood oxygen saturation and moderately attenuated the hypoxia-induced elevation in heart rate among personnel exposed to acute hypoxia.Furthermore,the training markedly reduced the incidence of AMS during high-altitude deployment.After 7 d of training,the AMS incidence decreased by 92.6%.A strong negative correlation was observed between the AMS incidence and the number of training days,which was well fitted by a logarithmic regression equation.Conclusion Hypoxic acclimatization training can effectively safeguard the physiological functions of personnel during high-altitude deployment and contributes to enhancing the training and operational capabilities of the deployed troops.
Keywords：acute mountain sicknesshypoxic acclimatizationnormobaric hypoxiaaviation troopshigh-altitude trainingmedical supportaviation physiology traininglow oxygen gas
Publication Date：2026-01-31
Online Publishing Date：2026-08-26(First online date of this platform, not the publication date of the document)
Pages：5( 51-55 )