Expanded blood volumes contribute to the increased cardiovascular performance of endurance-trained older men.

@article{Hagberg1998ExpandedBV,
  title={Expanded blood volumes contribute to the increased cardiovascular performance of endurance-trained older men.},
  author={James M Hagberg and Andrew P. Goldberg and Loretta E. Lakatta and Frances C O'connor and Lewis C. Becker and Edward G. Lakatta and Jerome L. Fleg},
  journal={Journal of applied physiology},
  year={1998},
  volume={85 2},
  pages={484-9}
}
To determine whether expanded intravascular volumes contribute to the older athlete's higher exercise stroke volume and maximal oxygen consumption (VO2 max), we measured peak upright cycle ergometry cardiac volumes (99mTc ventriculography) and plasma (125I-labeled albumin) and red cell (NaCr51) volumes in 7 endurance-trained and 12 age-matched lean sedentary men. The athletes had approximately 40% higher VO2 max values than did the sedentary men and larger relative plasma (46 vs. 38 ml/kg), red… CONTINUE READING