Summary
A group of 7 healthy males was studied after maximal exercise and during and after prolonged exercise of two types (approximately at 40 and 67% of their \(\dot V\)O2 max). Hematocrit, plasma proteins concentration, and hemoglobin were followed. Relative changes of plasma volume and total content of plasma protein were calculated from hematocrit changes. The mean corpuscular hemoglobin concentration was obtained by dividing hemoglobin by hematocrit. After maximal exercise, hemoconcentration with concomitant decrease of plasma volume (−13.0%) was found, with a corresponding increase in protein concentration (+12.9%) and without any protein content changes. Later normalisation at the 30th min of the recovery phase was shown. During prolonged submaximal exercise (67% of \(\dot V\)O2 max) the changes in hemoconcentration, plasma volume (−7.1%), and plasma protein concentration (+6.9%) reached the highest changes in the first 15 min of exercise, and no decrease in protein content was observed. After them the spontaneous tendency to the normalisation was found. No changes were registered in prolonged mild exercise (40% of \(\dot V\)O2 max). The ratio of hemoglobin to hematocrit remained unchanged during and after all types of exercise.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Ahlborg, B.: Capacity for prolonged exercise in man. Försvarsmedicin 3, Suppl. 1 (1967)
van Beaumont, W., Greenleaf, J. E., Juhos, L.: Disproportional changes in hematocrit, plasma volume changes and proteins during exercise and bed rest. J. appl. Physiol. 33, 55–61 (1972)
van Beaumont, W., Strand, J. C., Petrofsky, J. S., Hipskind, S. G., Greenleaf, J. E.: Changes in total plasma content of electrolytes and proteins with maximal exercise. J. appl. Physiol. 34, 102–106 (1973)
Bergström, J., Guarneri, G., Hultman, E.: Carbohydrate metabolism and electrolyte changes in human muscle tissue during heavy exercise. J. appl. Physiol. 30, 122–125 (1971)
Costill, D. L., Saltin, B.: Changes in the ratio of venous to body hematocrit following dehydration. J. appl. Physiol. 36, 608–610 (1974a)
Costill, D. L., Saltin, B.: Factors limiting gastric emptying during rest and exercise. J. appl. Physiol. 37, 679–683 (1974b)
Ekelund, L. G.: Circulatory and respiratory adaptation during prolonged exercise of moderate intensity in the sitting position. Acta physiol. scand. 69, 327–340 (1967)
Keys, A., Taylor, H.: The behaviour of the plasma colloids in recovery from brief severe work and the question as to the permeability of the capillaries to proteins. J. biol. Chem. 109, 55–67 (1935)
Poortmans, J. R.: Influence of physical exercise on proteins in biological fluids. In: Medicine and sport, Vol. 3. (J. R. Poortmans, ed.), pp. 312–327. Basel-New York: Karger 1969
Saltin, B., Stenberg, J.: Circulatory response to prolonged severe exercise. J. appl. Physiol. 19, 833–838 (1964)
Senay, L. C., Jr.: Changes in plasma volume and protein content during exposures of working men to various temperatures before and after acclimatization to heat: Separation to the roles of cutaneous and skeletal muscle circulation. J. Physiol. (Lond.) 224, 61–81 (1972)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Novosadová, J. The changes in hematocrit, hemoglobin, plasma volume and proteins during and after different types of exercise. Europ. J. Appl. Physiol. 36, 223–230 (1977). https://doi.org/10.1007/BF00421753
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00421753