Green H J, Jones L L, Hughson R L, Painter D C, Farrance B W
Med Sci Sports Exerc. 1987 Jun;19(3):202-6.
To investigate the effect of training-induced increases in plasma volume on maximal aerobic power, 8 male subjects (age 19 to 24 yr) underwent a 4-d training program (2 h X d-1) at an estimated 71% maximal aerobic power. Following training, plasma volume measured using 131I-human serum albumin increased by 20.3% (P less than 0.01) whereas red cell volume remained unchanged and total blood volume increased by 12.3% (P less than 0.01). During progressive sub-maximal cycle exercise, oxygen consumption, carbon dioxide production, ventilation, and blood lactate concentration remained unchanged following the training whereas heart rate was significantly elevated (P less than 0.05). Significant post-training elevations were also noted in carbon dioxide production (P less than 0.05), blood lactate (P less than 0.01), and peak power output (P less than 0.05) during maximal exercise. Maximal aerobic power and ventilation were not altered. It is concluded that hypervolemia induced by short-term exercise training does not affect oxygen consumption either during sub-maximal or maximal exercise.
为研究训练引起的血浆量增加对最大有氧能力的影响，8名男性受试者（年龄19至24岁）以约71%的最大有氧能力进行了为期4天的训练计划（每天2小时）。训练后，用131I - 人血清白蛋白测量的血浆量增加了20.3%（P<0.01），而红细胞量保持不变，总血量增加了12.3%（P<0.01）。在递增亚极量自行车运动期间，训练后耗氧量、二氧化碳产生量、通气量和血乳酸浓度保持不变，而心率显著升高（P<0.05）。在最大运动期间，训练后二氧化碳产生量（P<0.05）、血乳酸（P<0.01）和峰值功率输出（P<0.05）也有显著升高。最大有氧能力和通气量未改变。结论是，短期运动训练引起的血容量过多在亚极量或最大运动期间均不影响耗氧量。
