Journal of Applied Physiology, Vol 56, Issue 1 145-149, Copyright © 1984 by American Physiological Society

ARTICLES

Alterations in blood volume following short-term supramaximal exercise

H. J. Green, J. A. Thomson, M. E. Ball, R. L. Hughson, M. E. Houston and M. T. Sharratt

To investigate the role of high-intensity intermittent exercise on adaptations in blood volume and selected hematological measures, four male subjects aged 19-23 yr [peak O2 consumption (VO2max) = 53 ml X min-1 X kg-1] performed supramaximal (120% VO2max) cycle exercise on 3 consecutive days. Each exercise session consisted of intermittent work performed as bouts of 1-min work to 4-min rest until fatigue or until a maximum of 24 repetitions had been completed. Measurements on blood samples were made before the exercise period and 24 h after the last exercise session. Plasma volume (PV) estimated using 131I-human serum albumin increased by 11.6% (3,504 vs. 3,912 ml; P less than 0.05). Total blood volume (TBV) based on PV and hematocrit (Hct) values increased by 4.5% (5,798 vs. 6,059 ml; P less than 0.05), whereas red cell volume (RCV) decreased by 6.4% (2,294 vs. 2,147 ml; P less than 0.05). Measurements of hematological indices indicated significant reductions (P less than 0.05) in whole-blood Hct (39.7 vs. 35.5%), hemoglobin concentration (15.5 vs. 13.9 g/100 ml), hemoglobin content (897 vs. 839 g), and red blood cell count (5.15 vs. 4.55 X 10(6) X mm-3). The findings of this study suggest that exercise intensity is a major factor in promoting exercise-induced hypervolemia and that rapid elevations in PV can be induced early in training.

This article has been cited by other articles:

				K. Okazaki, H. Hayase, T. Ichinose, H. Mitono, T. Doi, and H. Nose Protein and carbohydrate supplementation after exercise increases plasma volume and albumin content in older and young men J Appl Physiol, September 1, 2009; 107(3): 770 - 779. [Abstract] [Full Text] [PDF]

				N. A. Bexfield, A. C. Parcell, W. B. Nelson, K. M. Foote, and G. W. Mack Adaptations to high-intensity intermittent exercise in rodents J Appl Physiol, September 1, 2009; 107(3): 749 - 754. [Abstract] [Full Text] [PDF]

				J. M. Goodman, P. P. Liu, and H. J. Green Left ventricular adaptations following short-term endurance training J Appl Physiol, February 1, 2005; 98(2): 454 - 460. [Abstract] [Full Text] [PDF]

				A I Da Silva and R Fernandez Dehydration of football referees during a match Br. J. Sports Med., December 1, 2003; 37(6): 502 - 506. [Abstract] [Full Text] [PDF]

				J. F Cox, K. U. Tahvanainen, T. A Kuusela, B. D Levine, W. H Cooke, T. Mano, S. Iwase, M. Saito, Y. Sugiyama, A. C Ertl, et al. Influence of microgravity on astronauts' sympathetic and vagal responses to Valsalva's manoeuvre J. Physiol., January 1, 2002; 538(1): 309 - 320. [Abstract] [Full Text] [PDF]

				R. Imoberdorf, P. J. Garlick, M. A. McNurlan, G. A. Casella, E. Peheim, M. Turgay, P. Bartsch, and P. E. Ballmer Enhanced synthesis of albumin and fibrinogen at high altitude J Appl Physiol, February 1, 2001; 90(2): 528 - 537. [Abstract] [Full Text] [PDF]

				K. Nagashima, G. W. Mack, A. Haskell, T. Nishiyasu, and E. R. Nadel Mechanism for the posture-specific plasma volume increase after a single intense exercise protocol J Appl Physiol, March 1, 1999; 86(3): 867 - 873. [Abstract] [Full Text] [PDF]

				R. C. Yang, G. W. Mack, R. R. Wolfe, and E. R. Nadel Albumin synthesis after intense intermittent exercise in human subjects J Appl Physiol, February 1, 1998; 84(2): 584 - 592. [Abstract] [Full Text] [PDF]