Hasibeder W, Schobersberger W, Mairbäurl H
Int J Sports Med. 1987 Apr;8(2):105-8. doi: 10.1055/s-2008-1025650.
Parameters of oxygen transport were determined in 12 national class swimmers of both sexes during a 6-week training phase. Training intensity was high at the beginning of the training period (60 km/week); at the end the intensity was reduced to 25 km/week. At the beginning, in the middle, and at the end of the training period maximal swim tests (3 X 50 m) were performed. At rest 2,3-diphosphoglycerate (2,3-DPG) concentration (+0.82 mmol/l RBC) and P50 values (+0.92 mmHg) were increased after the period of intensive training, but decreased during the following 3 weeks, remaining still higher than pre-training values. Hemoglobin (Hb), concentration (MCHC) decreased during the training phase in dependence on training intensity. On day 0 and day 25 no changes in 2,3-DPG were found during the swim tests, but at the end a significant reduction in red cell 2,3-DPG (-0.44 mmol/l RBC) occurred. This can be explained by the more pronounced lactacidosis in this last swim test. The degree of hemoconcentration during exercise was the same throughout the training period and consequently independent of the state of physical fitness. During the training period, a good correlation between training intensity, increase in red cell 2,3-DPG, and P50 value as well as in the degree of sports anemia could be found.
在为期6周的训练阶段，对12名男女国家级游泳运动员的氧运输参数进行了测定。训练期开始时训练强度较高（60公里/周）；结束时强度降至25公里/周。在训练期开始、中间和结束时进行了最大游泳测试（3×50米）。在休息时，经过强化训练期后，2,3-二磷酸甘油酸（2,3-DPG）浓度（红细胞中+0.82毫摩尔/升）和P50值（+0.92毫米汞柱）升高，但在接下来的3周内下降，仍高于训练前值。血红蛋白（Hb）浓度（平均血红蛋白浓度，MCHC）在训练阶段因训练强度而下降。在第0天和第25天的游泳测试中未发现2,3-DPG有变化，但在结束时红细胞2,3-DPG显著降低（-0.44毫摩尔/升红细胞）。这可以用最后一次游泳测试中更明显的乳酸性酸中毒来解释。整个训练期间运动时的血液浓缩程度相同，因此与体能状态无关。在训练期间，可以发现训练强度、红细胞2,3-DPG增加、P50值以及运动性贫血程度之间有良好的相关性。
