European Journal of Applied Physiology and Occupational Physiology

, Volume 36, Issue 4, pp 231–238

Blood biochemical alterations during recovery from competitive marathon running

  • Michael B. Maron
  • Steven M. Horvath
  • James E. Wilkerson
Article

DOI: 10.1007/BF00423048

Cite this article as:
Maron, M.B., Horvath, S.M. & Wilkerson, J.E. Europ. J. Appl. Physiol. (1977) 36: 231. doi:10.1007/BF00423048

Summary

The occurrence of possible prolonged alterations in plasma levels of cortisol, epinephrine, norepinephrine, selected energy metabolites, and water and electrolyte balance was assessed in six highly trained male marathon runners by measuring blood biochemical constituents on the 10th day before and for the three days following the running of a marathon. Post-race changes in hemoglobin, hematocrit, and protein levels indicated that a hemodilution had occurred, possibly as a result of elevated sodium levels. Epinephrine remained elevated until the second day. Cortisol was depressed on the first and third post-race days while variable levels were observed on the second day. No prolonged alterations were noted in norepinephrine, FFA, glycerol, triglycerides, glucose, lactate, and pyruvate.

Key words

MarathonCatecholaminesCortisolFluid balanceIntermediary metabolites

Copyright information

© Springer-Verlag 1977

Authors and Affiliations

  • Michael B. Maron
    • 1
  • Steven M. Horvath
    • 1
  • James E. Wilkerson
    • 1
  1. 1.Institute of Environmental StressUniversity of California, Santa BarbaraSanta BarbaraUSA
  2. 2.The Department of Physical EducationIndiana UniversityBloomingtonUSA