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Biochemical changes in a 100 km run: Carbohydrates, lipids, and hormones in serum

  • J. Keul
  • B. Kohler
  • G. von Glutz
  • U. Lüthi
  • A. Berg
  • H. Howald
Article

Summary

During the 100 km race in Biel, Switzerland, seven-well-trained men (age 33.3±3.5 years; \(\dot Vo_2 \) max. 59.9±ml/kg) have been investigated.

Their mean running time over the 100 km distance averaged 10.41±1.25 h. In contrast to almost unchanged blood glucose and lactate concentrations, blood lipids showed significant changes. Triglycerides decreased about two-fold, whereas glycerol and free fatty acids increased to extremely high concentrations (0.628 and 2.44 mmol/l respectively). Plasma insulin after the run was unaffected, whereas growth hormone, aldosterone and cortisol concentrations were significantly increased. With the exceptions of a still significantly elevated aldosterone and lactate concentration as well as a decreased triglyceride concentration all other values in the blood are restored to normal 24 h after completion of the run.

Key words

Long distance run Heart rate Carbohydrate and lipid metabolism Hormones 

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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • J. Keul
    • 1
  • B. Kohler
    • 1
  • G. von Glutz
    • 2
  • U. Lüthi
    • 2
  • A. Berg
    • 1
  • H. Howald
    • 2
  1. 1.Abteilung Sport- und LeistungsmedizinMedizinische UniversitÄtsklinikFreiburg i. Br.Federal Republic of Germany
  2. 2.Forschungsinstitut der Eidgenössischen Turn- und SportschuleMagglingenSwitzerland

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