DC pole | Wartość | Język |
dc.contributor.author | Knapik, Katarzyna | - |
dc.contributor.author | Sieroń, Karolina | - |
dc.contributor.author | Wojtyna, Ewa | - |
dc.contributor.author | Onik, Grzegorz | - |
dc.contributor.author | Romuk, Ewa | - |
dc.contributor.author | Birkner, Ewa | - |
dc.contributor.author | Stanek, Agata | - |
dc.contributor.author | Kawczyk-Krupka, Aleksandra | - |
dc.contributor.author | Plinta, Ryszard | - |
dc.contributor.author | Sieroń, Aleksander | - |
dc.date.accessioned | 2019-08-29T12:14:43Z | - |
dc.date.available | 2019-08-29T12:14:43Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Oxidative Medicine and Cellular Longevity, Vol. 2019, no. 2164698, (2019) | pl_PL |
dc.identifier.issn | 1942-0900 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/10686 | - |
dc.description.abstract | The main aim of the study was an assessment of the influence of rapid weight loss on oxidative stress parameters
in judokas differing in weight reduction value. Materials and Methods. The study included 30 judokas with an age range of
18-30 years (mean age: 22 4 ± 3 40 years). Enzymatic and nonenzymatic antioxidative markers, lipid peroxidation markers,
and total oxidative stress were assessed three times: one week before a competition (the first stage), after gaining the
desired weight (the second stage), and one week after the competition (the third stage). Results. Between the first and the
second stage, the concentration of lipid hydroperoxides (LPH) decreased significantly. The superoxide dismutase (SOD),
copper- and zinc-containing superoxide dismutase (Cu,Zn-SOD), ceruloplasmin (CER), malondialdehyde (MDA), LPH, and
total oxidative stress (TOS) concentrations were the lowest one week after the competition. Linear regression indicated that
the emphases on increased weight reduction increased the activity of glutathione peroxidase (GPx), glutathione reductase (GR),
glutathione S-transferase (GST), and protein sulfhydryl (PSH) between the first and the second stage of the study. Moderate
weight reduction (2-5%) resulted in elevated levels of SOD, Mn-SOD, LPH, MDA, and TOS in comparison to low and high
reductions. An opposite relation was observed in PSH. In judokas, the precompetitional weight reduction range was 0.44-6.10%
(mean: 2 93% ± 1 76%) of the initial body weight. Concentrations of superoxide dismutase (SOD; p < 01), manganesedependent
superoxide dismutase (Mn-SOD; p < 001), and ceruloplasmin (CER; p < 05) decreased between the first and the
third stage of the study as well between the second and third one. Before competitions, a decrease in lipid hydroperoxide
(LPH; p < 01) concentration was observed. A reduction of malondialdehyde (MDA; p < 05), LPH (p < 01), and total oxidative
stress (TOS; p < 05) levels between the first and the final stage occurred. The increase in weight reduction was linearly
correlated with the rise of glutathione peroxidase (GPx; p < 05), glutathione reductase (GR; p < 05), glutathione Stransferase
(GST; p < 05), and protein sulfhydryl (PSH; p < 05) concentrations between the first and the second stage of
the study. Moderate weight reduction (2-5%) resulted in elevated levels of SOD (p < 05), Mn-SOD (p < 05), LPH
(p < 05), MDA (p < 05), and TOS (p < 05) in comparison to low and high reductions. An opposite relation was
observed in PSH (p < 005). Conclusions. The effect of weight reduction in judo athletes on prooxidative-antioxidative
system diversity depends on the weight reduction value. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | stress | pl_PL |
dc.subject | stres oksydacyjny | pl_PL |
dc.subject | masa ciała | pl_PL |
dc.title | Precompetitional Weight Reduction Modifies Prooxidative-Antioxidative Status in Judokas | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.relation.journal | Oxidative Medicine and Cellular Longevity | pl_PL |
dc.identifier.doi | 10.1155/2019/2164698 | - |
Pojawia się w kolekcji: | Artykuły (WNS)
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