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Metabolic changes during volleyball matches.

U Künstlinger1, H G Ludwig, J Stegemann

  • 1Institute of Physiology, Deutsche Sporthochschule Köln, Cologne, FRG.

International Journal of Sports Medicine
|October 1, 1987
PubMed
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Volleyball players experienced electrolyte shifts and hormonal changes during matches. Hormonal responses suggest intense exercise, with energy primarily from creatine phosphate during short bursts.

Area of Science:

  • Sports Science
  • Exercise Physiology
  • Biochemistry

Background:

  • Volleyball involves intermittent high-intensity bursts and short recovery periods.
  • Understanding physiological responses to such unique exercise patterns is crucial for athlete performance and health.

Purpose of the Study:

  • To investigate the changes in electrolytes, hormones, and metabolic parameters in volleyball players during matches.
  • To correlate these physiological changes with the specific demands of volleyball gameplay.

Main Methods:

  • Serum and urinary concentrations of electrolytes (sodium, potassium, calcium, magnesium), hormones (aldosterone, cortisol, catecholamines), and metabolic markers (lactate, glucose, free fatty acids) were measured.
  • Measurements were taken during and after multiple volleyball matches.

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Main Results:

  • Serum sodium slightly increased, while potassium and calcium decreased post-match. Urinary excretion of water, sodium, and potassium was reduced due to lower glomerular filtration rate (GFR).
  • Hormonal levels (aldosterone, cortisol, adrenaline) increased significantly, similar to endurance sports, while noradrenaline indicated high-intensity exercise. Low lactate and increased free fatty acids suggested creatine phosphate as the primary energy source during intense intervals.
  • Electrolyte balance was further influenced by hormonal regulation, leading to decreased urinary sodium and increased urinary potassium post-exercise.

Conclusions:

  • Volleyball matches induce significant physiological stress, characterized by electrolyte disturbances and pronounced hormonal responses.
  • The energy metabolism during volleyball is a mix of anaerobic (creatine phosphate) and aerobic pathways, adapted to the intermittent nature of the sport.
  • These findings highlight the need for tailored hydration, nutrition, and recovery strategies for volleyball athletes.