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https://hdl.handle.net/10216/95791
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DC Field | Value | Language |
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dc.creator | Antonio Ascensao | |
dc.creator | Rita Ferreira | |
dc.creator | Franklim Marques | |
dc.creator | Eduardo Oliveira | |
dc.creator | Victor Azevedo | |
dc.creator | Jose Soares | |
dc.creator | Jose Magalhaes | |
dc.date.accessioned | 2022-10-19T23:07:22Z | - |
dc.date.available | 2022-10-19T23:07:22Z | - |
dc.date.issued | 2007 | |
dc.identifier.issn | 0306-3674 | |
dc.identifier.other | sigarra:45218 | |
dc.identifier.uri | https://hdl.handle.net/10216/95791 | - |
dc.description.abstract | Aim: To analyse the effect of an off-road motocross heat on plasma levels of oxidative stress and damage, blood leucocyte counts and urine catecholamine concentration. Methods: Plasma contents of total, reduced and oxidised (GSSG) glutathione, %GSSG, malondialdehyde (MDA), protein carbonyl and sulphydryl groups, total antioxidant status (TAS), uric acid, and blood neutrophil and lymphocyte counts were evaluated in 10 male top-level riders before, immediately after (0 h) and 1 h after a simulated competitive motocross race. 24-h urine adrenaline, noradrenaline and dopamine concentrations were also measured. Results: The motocross heat resulted in an increase in plasma oxidative stress and damage (p < 0.05). This was shown by a significant increase in %GSSG, TAS, MDA and carbonyls, and by a decrease in sulphydryl groups after the race. There was a significant increase in both plasma uric acid and urine catecholamine concentration after the race (p < 0.05). Blood neutrophil counts increased at 0 and 1 h after exercise (p < 0.05). Lymphocyte count increased from baseline to 0 h, although it decreased from baseline and 0 to 1 h after exercise (p < 0.05). Conclusion: The data reinforce the marked metabolic and hormonal demands imposed by motocross, resulting in a condition of enhanced plasma oxidative stress and damage. | |
dc.language.iso | eng | |
dc.rights | restrictedAccess | |
dc.subject | Ciências da saúde | |
dc.subject | Health sciences | |
dc.title | Effect of off-road competitive motocross race on plasma oxidative stress and damage markers | |
dc.type | Artigo em Revista Científica Internacional | |
dc.contributor.uporto | Faculdade de Desporto | |
dc.contributor.uporto | Faculdade de Farmácia | |
dc.identifier.doi | 10.1136/bjsm.2006.031591 | |
dc.identifier.authenticus | P-004-BXF | |
dc.subject.fos | Ciências médicas e da saúde::Ciências da saúde | |
dc.subject.fos | Medical and Health sciences::Health sciences | |
Appears in Collections: | FADEUP - Artigo em Revista Científica Internacional FFUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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45218.pdf Restricted Access | 246.9 kB | Adobe PDF | Request a copy from the Author(s) |
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