Effect of Intermittent Hypoxic Training on Selected Biochemical Indicators, Blood Rheological Properties, and Metabolic Activity of Erythrocytes in Rowers
Aneta Teległów,
Mateusz Mardyła,
Michał Myszka,
Tomasz Pałka,
Marcin Maciejczyk,
Przemysław Bujas,
Dariusz Mucha,
Bartłomiej Ptaszek,
Jakub Marchewka
Affiliations
Aneta Teległów
Department of Health Promotion, Institute of Basic Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
Mateusz Mardyła
Institute of Biomedical Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
Michał Myszka
AZS AWF Krakow Sports Club, 31-571 Krakow, Poland
Tomasz Pałka
Institute of Biomedical Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
Marcin Maciejczyk
Institute of Biomedical Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
Przemysław Bujas
Department of Sports Theory and Anthropomotorics, University of Physical Education in Krakow, 31-571 Krakow, Poland
Dariusz Mucha
Institute of Biomedical Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
Bartłomiej Ptaszek
Institute of Applied Sciences, University of Physical Education in Krakow, 31-571 Krakow, Poland
Jakub Marchewka
Department of Rehabilitation in Traumatology, Institute of Clinical Rehabilitation, University of Physical Education in Krakow, 31-571 Krakow, Poland
The study assessed the effect of 3-week intermittent hypoxic training on blood biochemical indicators (blood morphology, fibrinogen), blood rheological properties (erythrocyte deformability, aggregation), erythrocyte enzymatic activity (acetylcholinesterase), and maximal oxygen uptake in competitive rowers. Fourteen male rowers were divided into two equal groups: experimental, training on ergometers under normobaric hypoxia (FiO2 = 16.0%), and control, training on ergometers under normoxia (FiO2 = 21%). Fasting blood was taken before and after training. A significant between-group difference in neutrophil levels before training was noted and a significant decrease in white blood cells in the hypoxia group. Both groups exhibited an increase in elongation index. In the normoxia group, a significant increase in erythrocyte aggregation amplitude was revealed. No significant changes occurred in the other biochemical indicators or those evaluating erythrocyte metabolic activity. Normobaric hypoxia increased erythrocyte deformability, improving blood rheological properties. Maximal oxygen uptake significantly increased only in the experimental group.
