Issue title: Selected Presentations of the 32nd Annual Conference of the German Society for Clinical Hemorheology and Microcirculation
Article type: Research Article
Authors: Teległów, Aneta | Dąbrowski, Zbigniew | Marchewka, Anna | Tyka, Aleksander | Krawczyk, Marcin | Głodzik, Jacek | Szyguła, Zbigniew | Mleczko, Edward | Bilski, Jan | Tyka, Anna | Tabarowski, Zbigniew | Czepiel, Jacek | Filar-Mierzwa, Katarzyna
Affiliations: Department of Clinical Rehabilitation, University School of Physical Education, Cracow, Poland | Department of Physiology and Biochemistry, University School of Physical Education, Cracow, Poland | Cracow Society of Winter Swimmers “Kaloryfer”, Cracow, Poland | Department of Physiotherapy, University School of Physical Education, Cracow, Poland | Department of Theory and Methodology of Track and Field Athletics, University School of Physical Education, Cracow, Poland | Department of Ergonomics and Exercise Physiology, Collegium Medicum, Jagiellonian University, Cracow, Poland | Department of Recreation and Biological Regeneration, University School of Physical Education, Cracow, Poland | Department of Experimental Hematology, Jagiellonian University, Cracow, Poland | Department of Infectious Diseases, Collegium Medicum, Jagiellonian University, Cracow, Poland | Department of Theory and Methodology of Gymnastics, University School of Physical Education, Cracow, Poland
Note: [] Corresponding author: Aneta Teległów, MD, PhD, Department of Clinical Rehabilitation, University School of Physical Education, Al. Jana Pawła 78, 31-571 Cracow, Poland. Tel.: +48 12 683 10 83; Fax: +48 12 683 13 00; E-mail: [email protected]
Abstract: The aim of this study was to analyze the changes in blood rheology resulting from regular winter swimming. The study was carried out on 12 male winter swimmers. Venous blood for morphological, biochemical and rheological analysis was sampled twice from each winter swimmer – at the beginning of the season and after its completion. There were no significant changes detected in the median values of most blood morphological parameters. The only exception pertained to MCHC which was significantly lower after the season. Winter swimming entailed significant decrease in median elongation index values at shear stress levels of 0.30 Pa and 0.58 Pa, and significant increase in median values of this parameter at shear stress levels ≥1.13 Pa. No significant changes were observed in winter swimmers' median values of aggregation indices and plasma viscosity. The median level of glucose was lower post winter swimming in comparison to the pre-seasonal values. In contrast, one season of winter swimming did not influence swimmers' median value of fibrinogen concentration. In summary, this study revealed positive effects of winter swimming on the rheological properties of blood, manifested by an increase in erythrocyte deformability without accompanying changes in erythrocyte aggregation.
Keywords: Aggregation index, deformability, elongation index, erythrocyte, plasma viscosity
DOI: 10.3233/CH-141823
Journal: Clinical Hemorheology and Microcirculation, vol. 57, no. 2, pp. 119-127, 2014
