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观察３３名消防队员参加２２００ｍ跑步训练后血中红细胞计数、血红蛋白浓度和红细胞压积，比运动前分别升高２６２％（Ｐ＞０．０５）；４８８％（Ｐ＜０．０１）和７２８％（Ｐ＜０．０１），血液容量和血浆容量则分别下降４８１％（Ｐ＜０．０１）、１０９５％（Ｐ＜０．０１），而细胞容积略上升２０６％（Ｐ＞０．０５）。所有队员禁食条件下休息６０ｍｉｎ后，上述各项指标均恢复至运动前水平（Ｐ＞０．０５）。结果提示：剧烈运动时，机体在体液的再分布过程中所引起的血液浓缩改变，是机体适应于剧烈运动的一种生理代偿机制。
The blood red blood cell count, hemoglobin concentration and hematocrit of 33 firefighters were observed after 2200m running training, which were respectively increased by 262% (P> 0.05) and 488% (P <0.01) ) And 728% (P <0.01). Blood volume and plasma volume decreased by 481% (P <0.01) and 1095% (P0.01) Increased by 2 06% (P> 0.05). All the members of the fasting 60min after fasting, the above indicators were restored to pre-exercise level (P> 0.05). The results suggest that: during strenuous exercise, the body changes in blood concentration caused by redistribution of bodily fluids is a physiological compensatory mechanism that the body adapts to strenuous exercise.