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本工作调查了常氧和三种减压低氧环境中，中度吸气阻力（ＩＲ，０．４４ｋＰａ·ｓ·Ｌ￣（－１）负荷对最大有氧工作能力（ＶＯ＿（２ｍａｘ））的影响。受试者为６名健康的男性青年。结果表明：无ＩＲ负荷及ＩＲ负荷条件下，ＶＯ＿（２ｍａｘ）和耐力时间（ＥＴ）均显示出随低氧程度的增加而显著降低（Ｐ＜０．０１）；与常氧环境的结果相似，在低氧环境中ＩＲ负荷导致了ＶＯ＿（２ｍａｘ）的进一步减小（Ｐ＜０．０１）。上述结果提示，无论常氧和低氧环境，中度的ＩＲ负荷均可导致人员极限工作能力的下降。
This work investigated the effects of moderate inspiratory resistance (IR, 0.44 kPa · s · L ~ (-1) load on maximum aerobic capacity (VO_ (2max)) in normoxia and three hypoxia- .The results showed that VO 2max and endurance time ET were significantly decreased with the increase of hypoxia under the conditions of no IR and IR (P < 0.01). Similar to the results of normoxic environment, IR load caused a further decrease of VO_ (2max) in hypoxia environment (P <0.01) .The above results suggest that no matter normoxic or hypoxic environment, Moderate IR load can lead to a decrease in the ability of staff to work.