| The effects of progressive exercise on cardiovascular function in elite athletes: Focus on oxidative stress. | |
| | |
MedLine Citation:
|
PMID: 21388931 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
Some side-effects of excessive physical training are ascribed to reactive oxygen species production. In this work we investigated the effects of progressively imposed maximal physical effort (levels I to V), using progressive maximal exercise test, on peripheral blood lactate, NO (through NO2-), superoxide anion (O2-) and methemoglobin (MetHb) in a group of 19 elite soccer players. Blood lactate (mmol/L) was increased (4.55, level V vs. resting level, 1.95). The basal production of NO2- was in the direct relation with O2 consumption. Significant increase (p<0.05) in O2- values at effort level I (4.18) as compared to the resting value (4.01), and the significant increase (p<0.01 or p<0.05) in the MetHb (%) was found between II (18.79) and III (19.63) or between II and IV (19.24) effort levels, respectively. The regression lines of NO2- and O2- crossed at the level of the respiratory compensation point (RC), suggesting that RC could be of a crucial importance not only in the anaerobic and aerobic metabolism but in mechanisms of signal transductions as well. The results could be of the theoretical interest and also useful in designing an athlete training strategy. |
| | |
Authors:
|
Vladimir Lj Jakovljević; M Zlatković; D Cubrilo; I Pantić; D M Djurić |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Acta physiologica Hungarica Volume: 98 ISSN: 0231-424X ISO Abbreviation: Acta Physiol Hung Publication Date: 2011 Mar |
Date Detail:
|
Created Date: 2011-03-10 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8309201 Medline TA: Acta Physiol Hung Country: Hungary |
Other Details:
|
Languages: eng Pagination: 51-8 Citation Subset: IM |
Affiliation:
|
University of Kragujevac Department of Physiology, The Faculty of Medicine Kragujevac Serbia University of Kragujevac Department of Physiology, Faculty of Medicine Svetozara Markovica 69 P. P. 124 34000 Kragujevac Republic of Serbia. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Immobilization stress reduces oxygen consumption of the isolated interstitial rats' testes cells.
Next Document: Mathematical analysis of the heart rate performance curve during incremental exercise testing.