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实验采用区组正交设计,安排144人次的试验条件。各试验因素选定4种量级水平(缺氧高度:3、4、5、6km;温度:25、30、35、40℃;振动:0.2、0.4、0.6、0.8g·40Hz;噪声:85、90、95、100dBA)。受试者为24名健康男性青年。测试指标有:呼吸、循环、脑电、功效、体温、暂时听阈改变、症状及体征等。运用主成分分析法,求取了各指标与各系统的生理反应特征值。采用专家经验与统计学分析、定量指标与定性指标相结合的方法,结合各系统的特征,划分了不同实验人次中各系统的状态——舒适、功效、安全、耐限。取各系统的最重状态为各次实验的人体功能状态。
Experiments using block orthogonal design, arranged for 144 people test conditions. The test factors selected four levels (hypoxia height: 3,4,5,6km; temperature: 25,30,35,40 ℃; vibration: 0.2,0.4,0.6,0.8 g · 40Hz; noise: 85 , 90, 95, 100 dBA). Subjects were 24 healthy male youths. Test indicators are: breathing, circulation, EEG, efficacy, body temperature, temporary hearing threshold changes, symptoms and signs. Principal component analysis was used to calculate the physiological response of each index and each system. Based on the combination of expert experience and statistical analysis, quantitative indicators and qualitative indicators, and combining the characteristics of each system, the status of each system in different experimental populations was divided - comfort, efficacy, safety and resistance. Take the heaviest state of the system for each experiment of human functional status.