Sex differences in oxidative stress after eccentric and concentric exercise |
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| Authors: | Magdalena Wiecek Marcin Maciejczyk Jadwiga Szymura Zbigniew Szygula |
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| Affiliation: | 1. Department of Physiology and Biochemistry, Faculty of Physical Education and Sport, University of Physical Education in Krakow, Krakow, Poland;2. Department of Clinical Rehabilitation, Faculty of Motor Rehabilitation, University of Physical Education in Krakow, Poland;3. Department of Sports Medicine and Human Nutrition, Faculty of Physical Education and Sport, University of Physical Education in Krakow, Poland |
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| Abstract: | Objectives: Comparison of redox balance changes in the blood of women and men as a result of submaximal eccentric (ECC) and concentric (CONC) efforts.Methods: 10 women and 10 men performed three 45-minute submaximal treadmill runs at constant velocities (downhill run – ECC, uphill run – CONC and level run). Prior to the 45-minute exercises, after their completion and following 24 hours of recovery, the concentration of lactate, oxidized low-density lipoprotein (ox-LDL), 3-nitrotyrosine, uric acid (UA) and the white blood cell count (WBC), neutrophil (NEUT), lymphocyte (LYMPH) and monocyte content in the blood were determined.Results: In women, the ox-LDL increased significantly 10 minutes and 24 hours following ECC (P?P?P?P?Discussion: ECC cause impaired redox balance only in women. Due to the increase in antioxidant capacity of the blood without accompanying oxidative damage to macromolecules, for both sexes, it is recommended to perform concentric running efforts at the highest possible subliminal intensity. |
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| Keywords: | Oxidative stress muscle damage sex differences eccentric exercise concentric exercise submaximal exercise |
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