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Postexercise hypotension in moderately trained athletes after maximal exercise.

Zeljko Dujić1, Vladimir Ivancev, Zoran Valic

  • 1Department of Physiology and Biophysics, University of Split School of Medicine, Split, Croatia. zdujic@bsb.mefst.hr

Medicine and Science in Sports and Exercise
|March 15, 2006
PubMed
Summary

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Postexercise hypotension in soccer players is linked to reduced cardiac output, not vasodilation. Lower fitness or higher resting blood pressure may increase hypotension risk.

Area of Science:

  • Exercise Physiology
  • Cardiovascular Physiology

Background:

  • Postexercise hypotension (PEH) mechanisms vary by sex and training status.
  • Endurance-trained men show reduced cardiac output, while others exhibit peripheral vasodilation.
  • Professional soccer players possess high endurance capacity, necessitating investigation into their PEH mechanisms.

Purpose of the Study:

  • To investigate the occurrence and mechanisms of PEH after maximal exercise in professional soccer players.
  • To compare PEH mechanisms in highly trained athletes to previously studied populations.

Main Methods:

  • Twenty professional soccer players underwent measurements of arterial blood pressure, cardiac output (Q), heart rate (HR), and diffusing lung capacity for carbon monoxide (DLCO).
  • Measurements were taken before and 30 and 60 minutes after a short maximal field exercise bout.

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Main Results:

  • Postexercise, decreases were observed in diastolic blood pressure (DBP), systolic blood pressure (SBP), Q, stroke volume, and DLCO, with a concurrent HR increase.
  • Lower VO2max correlated with greater DBP reduction (r = -0.73, P = 0.0001).
  • Higher baseline SBP was associated with greater SBP decrease (r = 0.51, P = 0.023), while total peripheral resistance (TPR) remained unchanged.

Conclusions:

  • In moderately trained athletes like soccer players, PEH is primarily driven by reduced cardiac output due to decreased stroke volume, suggesting venous pooling.
  • Hypotension occurrence is more prevalent in trained individuals with lower cardiopulmonary fitness or higher resting SBP.