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目的:探讨富氧在高原军事医学中的应用价值。方法:在海拔3700m高原室内充氧,使氧浓度提高到24.0%～25.0%。10名受试者在富氧室睡眠12h,检测富氧前,富氧2,11h及富氧后2h静息状态下和运动中的氧饱和度(bloodoxygensaturation,SaO2)和心率。结果:入富氧室2h犤(95.5±0.9)%犦和11h犤(95.1±1.9)%犦SaO2差异有显著性意义(t=5.446,4.124,P<0.01),心率犤(70.2±11.3)次/min,(64.5±5.1)次/min犦降低(t值分别为3.652和5.612,P<0.01)。脱离富氧后2hSaO2犤(92.3±2.0)%犦接近富氧前水平。富氧后踏车运动中平均SaO2犤(85.8±2.0)%犦较富氧前增高(t=3.642,P<0.01),平均心率犤(129.0±11.0)次/min犦降低(t=2.182,P<0.05)。结论:富氧环境下12h对改善高原缺氧和机体能量储备有一定作用。
Objective: To explore the value of oxygen enrichment in military medicine in the plateau. Methods: In the altitude of 3700m plateau indoor oxygenation, the oxygen concentration increased to 24.0% ~ 25.0%. Ten subjects in the oxygen-enriched room sleep 12h, before oxygen enrichment, oxygen enrichment 2,11h and 2h after oxygen enrichment at rest and exercise in the oxygen saturation (bloodoxygensaturation, SaO2) and heart rate. Results: There were significant differences in SaO2 between 2h 犤 (95.5 ± 0.9)% and 11h 犤 (95.1 ± 1.9)% 入 (t = 5.446, 4.124, P <0.01) and 心 (70.2 ± 11.3) Times / min, (64.5 ± 5.1) times / min 犦 decreased (t values were 3.652 and 5.612, P <0.01). After 2 hours of oxygen enrichment, the oxygen uptake (92.3 ± 2.0)% 犦 approached the pre-oxygen level. The average SaO2 犤 (85.8 ± 2.0)% 踏 after treadmill exercise was significantly higher than that before oxygen enrichment (t = 3.642, P <0.01), mean heart rate 129 (129.0 ± 11.0) P <0.05). Conclusion: 12h oxygen enrichment environment to improve the plateau hypoxia and body energy reserves have a certain effect.