海拔3700m富氧室对士兵力竭运动后血液流变学的影响

EFFECT OF OXYGEN ENRICHMENT OF ROOM AIR ON THE HEMORHEOLOGY OF SOLDIERS AFTER EXHAUSTION-EXERCISE AT 3700m ALTITUDE

研究富氧室改善高原缺氧及力竭运动后血液流变学的变化。海拔 370 0m ,向室内注氧 ,将氧浓度提高到 2 4 0 %～ 2 5 0 %。10名青年在富氧室休息和睡眠 12h,检测未富氧静息状态、未富氧力竭运动后、富氧及力竭运动后的血液流变学。未富氧力竭运动后红细胞压积 (HCT)和血液粘度 (ηb)、还原粘度 (ηr)、血细胞聚集系数 (VAI)较未富氧静息状态增高 ,差异有非常显著性意义或差异有显著性意义 (P <0 0 1或P <0 0 5 ) ,富氧及力竭运动后各项指标较未富氧静息状态差异无显著性意义 (P >0 0 5 ) ,较未富氧力竭运动后ηb、ηr、血浆粘度 (ηp)降低 ,差异有显著性意义 (P <0 0 5 )。高原富氧

To study the effect of oxygen enrichment of room air on the change of hemorheology of soldiers after high altitude hypoxia and exhaustion exercise at 3700 altitude, the oxygen concentration was increased to 24 0%～25 0% in the rooms at 3700m altitude, the change of hemorheology in 10 soldiers after they had 12h rest and sleep in the oxygen enrichment room was examined in no oxygen enrichment resting state and in oxygen enrichment state as well as after exhaustion exercise in no oxygen enrichment room and in oxygen enrichment room.Hematocrit (HCT), blood viscosity (ηb), reduction viscosity (ηr) and viscometric aggregation index (VAI) were higher after exhaustion exercise in no oxygen enrichment room as compared with those in no oxygen enrichment resting state, the difference was very significant or signifant ( P <0 01 or P <0 05). No difference was found in hemorheology after oxygen enrichment and exhaustion exercise as compared with no oxygen enrichment and resting state ( P >0 05),ηb, Plasma viscosity (ηp), ηr were decreased after exhaustion exercise in no oxygen enrichment room ( P <0 05). It is suggested that oxygen enrichment of room air can improve the change of hemorheology of soldiers due to hypoxia and exhaustion exercise at high altitude.