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Journal Article Randomized Controlled Trial Research Support, Non-U.S. Gov't Ppublish 13 citations

PubMed: 25089277 DOI: 10.1155/2014/862968

Effects of a meal on the hemorheologic responses to exercise in young males.

Biomed Res Int 2014:862968

Authors: Jan Bilski, Aneta Teległów, Janusz Pokorski, Jacek Nitecki, Joanna Pokorska, Ewa Nitecka, Anna Marchewka, Zbigniew Dąbrowski, Jakub Marchewka

Affiliations

  • Department of Ergonomics and Exercise Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, 31-531 Cracow, Poland.
  • Department of Clinical Rehabilitation, University School of Physical Education, 31-571 Cracow, Poland.
  • Joseph Dietl Hospital, 31-121 Cracow, Poland.

Abstract

AIM

This study investigates the changes in hemorheologic parameters resulting from exercise followed by a standard meal.

METHODS

In twelve moderately active men a period of exercise on a bicycle ergometer for 30 min at 60% VO2max was followed by a test meal or by 30 min rest. Venous blood was sampled for further analysis at baseline, after exercise, and after the meal/rest period.

RESULTS

The elongation index (EI) was reduced and a marked rise in plasma viscosity was observed after exercise. A significant decrease in half time of total aggregation (T 1/2) and a rise in aggregation index (AI) after exercise were observed; however, after the postexercise period these changes were reversed.

CONCLUSION

The present study demonstrates that physical exercise causes several changes in blood rheology parameters, such as an increase of blood viscosity, a decrease in EI and an increase in AI, and a fall in the T 1/2 values. The meal eaten in the postexercise period caused a further reduction in EI values indicating higher red cell rigidity, but not in plasma viscosity or aggregations indices. Such alterations in hemorheologic parameters should not impair the function of the cardiovascular system in fit and healthy people but it could constitute a serious risk under various pathophysiological conditions.

MeSH

Exercise, Blood, Biomedical Research, Meals, Artificial Intelligence, Plasma

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