title: [Study on anti +Gx respiratory maneuver and its training method].
abstract: Objective. To study the anti +Gx respiratory maneuver and its training method. Method. Seven young male subjects undertook the anti +Gx respiratory maneuver training. Their +Gx tolerances were examined on human centrifuge before and after training. The change of respiratory type, breath rate, electrocardiogram, heart rate, arterial oxygen saturation (SaO2), subjective symptom and vision were real-time monitored during the +Gx tolerance examination. Result. Compared with pre-training, the +Gx tolerance increased after training (P<0.05). Dyspnea and chest pain disappeared or obviously lightened and the magnitude of decrease of SaO2 decreased significantly (P<0.05). Conclusion. The above results suggested that the anti +Gx respiratory maneuver can effectively eliminate or alleviate dyspnea and chest pain induced by +Gx stress and increase human +Gx tolerance.
authors.affiliation: Institute of Space-Medico Engineering, Beijing, China.
authors.forename: Yue-ying
authors.initials: YY
authors.lastname: Xue
authors.forename: Guang-xing
authors.initials: GX
authors.lastname: You
authors.forename: Bin
authors.initials: B
authors.lastname: Wu
authors.forename: Xing-hua
authors.initials: XH
authors.lastname: Liu
authors.forename: Sheng-qiang
authors.initials: SQ
authors.lastname: Lu
authors.forename: Bao-sheng
authors.initials: BS
authors.lastname: Xie
mesh_terms: D000222:Adaptation, Physiological; D000337:Aerospace Medicine; D001945:Breathing Exercises; D002498:Centrifugation; D002637:Chest Pain / Q000209:etiology / Q000517:prevention & control; D004417:Dyspnea / Q000209:etiology / Q000517:prevention & control; D006339:Heart Rate; D006801:Humans; D018471:Hypergravity / Q000009:adverse effects*; D000860:Hypoxia / Q000209:etiology / Q000517:prevention & control; D007318:Inservice Training; D008297:Male; D010100:Oxygen / Q000097:blood; D010807:Physical Endurance; D012119:Respiration
chemical_list: D010100:Oxygen