The effect of induced erythrocythemia upon 5-mile treadmill run time.
The effect of induced erythrocythemia upon 5-mile treadmill run time.
复制标题
诱导红细胞增多症对 5 英里跑步机跑步时间的影响。
DOI：
--
复制
发表时间：
1981
影响因子：
4.1
通讯作者：
R. Schuster
中科院分区：
文献类型：
--
作者：
M. H. Williams;S. Wesseldine;T. Somma;R. Schuster
本实验的目的是研究输注920毫升等量的自体血液对5英里时间（5MT）和局部（RPE-L）和心血管-呼吸（RPE-B）感知运动评分的影响。12名长跑运动员在跑步机上进行了4组5吨的比赛。采用四种试验条件：盐水前试验；生理盐水溶液920 ml后试验；pre-blood试验;和血液试验后920毫升等量的全血。所有受试者都参加了双盲安慰剂交叉实验设计的所有试验。每隔0.5英里记录跑步时间和RPE。每次试验前后均采集血样。数据通过重复测量方差分析进行分析。总的来说，与其他三个试验相比，输血后的结果如下：血红蛋白（Hb）浓度显著升高；在跑步的前两英里，RPE-L和RPE-B显著降低；以及更快的5MT。在本实验的限制下，我们得出结论，在有氧能量消耗高的运动项目中，输注920 ml等量的自体血可以提高运动能力。
The purpose of this experiment was to investigate the effect the infusion of 920 ml equivalent of autologous blood would have upon 5-mile time (5MT) and both local (RPE-L) and cardiovascular-respiratory (RPE-B) ratings of perceived exertion. Twelve long-distance runners undertook a series of four competitive 5MT trials on a treadmill. Four test conditions were utilized: pre-saline trial; post-saline trial after 920 ml saline solution; pre-blood trial; and post-blood trial after 920 ml equivalent of whole blood. All subjects took all trials in this double-blind placebo crossover experimental design. Running time and RPE were recorded at each 0.5 mile split. Blood samples were taken before and after each trial. The data were analyzed via a repeated-measures ANOVA. In general, the following results were noted following the blood infusion when compared with the other three trials: a significantly higher hemoglobin (Hb) concentration; a significantly lower RPE-L and RPE-B during the first two miles of the run; and a significantly faster 5MT. Within the limitations of this experiment, it was concluded that the infusion of 920 ml equivalent autologous blood would increase performance capacity in an athletic event characterized by high levels of aerobic energy expenditure.