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Schippinger, G; Fankhauser, F; Abuja, PM; Winklhofer-Roob, BM; Nadlinger, K; Halwachs-Baumann, G; Wonisch, W.
Competitive and seasonal oxidative stress in elite alpine ski racers.
Scand J Med Sci Sports. 2009; 19(2):206-212
Doi: 10.1111/j.1600-0838.2007.00763.x
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- Führende Autor*innen der Med Uni Graz
- Schippinger Gert
- Co-Autor*innen der Med Uni Graz
- Abuja Peter Michael
- Baumann Gabriele
- Wonisch Willibald
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- Abstract:
- We investigated competitive- and long-term oxidative stress during a competition season in eight top-ranked members of the Austrian Men's Alpine Ski Team. Serum total peroxides, antibody titers against oxidized LDL (oLAb) and lag time of the degradation of the fluorophore 1-palmitoyl-2-((2-(4-(6-phenyl-trans-1,3,5-hexatrienyl)phenyl)ethyl)-carbonyl)-sn-glycero-3-phosphocholine were measured, along with plasma concentrations of ascorbate, alpha- and gamma-tocopherol, beta-carotene, uric acid and the lipid status. Competitive stress was indicated through an increased post-race uric acid level (286 +/- 50 microM pre-race vs 456 +/- 77 microM post-race, P<0.001) in December. Long-term effects were already apparent in November, with the highest concentrations of total peroxides (680 +/- 458 microM H(2)O(2) equivalents vs December 47 +/- 58 microM H(2)O(2) equivalents and January 15 +/- 28 microM H(2)O(2) equivalents, P<0.001) and a concomitant decrease in oLAb titers with an antibody trough in December (439 +/- 150 mU/mL vs baseline 1036 +/- 328 mU/mL; P=0.003). In January, after recovery, they attained nearly pre-season levels of oxidative stress biomarkers. This study indicates midseason oxidative stress in top-level skiers, which was associated with the performance in these athletes.
- Find related publications in this database (using NLM MeSH Indexing)
- Adult -
- Athletic Performance - physiology
- Athletic Performance -
- Biological Markers - blood Biological Markers - urine
- Competitive Behavior - physiology
- Humans -
- Male -
- Oxidative Stress - physiology
- Skiing - physiology
- Stress, Physiological - physiology
- Young Adult -
- Find related publications in this database (Keywords)
- moderate altitude
- intensive exercise
- reactive oxygen species
- cold climate