【摘要】 6名业余运动员(男,10～12岁)进行乒乓球训练的有氧负荷前后,红细胞悬液粘度和渗透脆性无显著变化,说明对红细胞变形性的影响不明显;相同受试者在100米跑前后红细胞渗透脆性增加,滤过率降低,说明红细胞变形性降低。6名大学生(男,20～22岁)在Wingate试验前后,红细胞悬液粘度增加,滤过率降低,正常形态比例下降,说明红细胞变形性运动后明显降低,并且在运动后一小时仍未恢复。更多还原

【Abstract】 The purpose of this study was: To research RBC rheological changes before and after different exercises of aerobic and anaerobic loads and to approach the effects of these changes on cardiovascular function and the mechanism of anemia occurrence in athletes. 6 tabletennis players （male, 10-12 yrs） participated in a 3 hrs tabletennis technique training of moderate intensity. No significant changes were detected in osmotic fragility and suspension viscosity of RBC before and after exercise. In 100 m sprint of the same subjects, RBC filter rates decreased from 20.7±5.7% to 10.5±2.3% （p<0.01） and RBC osmotic fragility, measured by NaCl% of 50% hemolysis, increased from 0.426±0.026% to 0.583±0.046% （P<0.01）.In further study of 6 college students （male, 20-22 yrs） with Wingate-test （HR immediately after exercise: 182±22 beat/min）, blood samples were taken before, immediately and 1hr after exercise. Date of RBC filter rates were: 27.0±5.0%, 16.6±5.8%^** and 18.4±4.1%^**; viscosity of RBC suspension were: 4.65±0.063 cp, 5.14±0.604 cp^* and 6.18±0.816 cp^* and the percentages of normal shape RBC were 85.0±4.9%, 78.0±14.4%^* and 73.0±16.7%^** respectively. Blood acidity and serum lactate concentration increased significantly immediately after exercise.The results revealed: Exercise of moderate intensity, such as tabletennis training, affected RBC deformability unsignificantly; while exercise of maximal intensity, even though its duration was only tens of seconds, lessened RBC deformability, and the reduction remained so more than 1hr exercise.* & **: Date compared with that of before exercise showed significance (^* P<0.05, ^**P<0.01).更多还原