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Oxidative stress and
antioxidant status in sportsmen two hours after strenuous
exercise and in sedentary control subjects
George, B. O.* and Osharechiren, O. I.
Department
of Biochemistry, Delta State University, Abraka, Nigeria.
*Corresponding author. E-mail:
ebelegeorge@yahoo.com.
Accepted
26 January, 2009 |
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Regular exercise has well documented health benefits.
However, exercise can also induce imbalance between oxidant
stress and antioxidant status. This study was designed to
investigate the serum lipid profile and non-enzymatic
antioxidants markers (serum uric acid and albumin) as well
as lipid hydroperoxide (a marker of oxidative stress) in 39
sportsmen after 2 h of strenuous training exercise and also
in 24 sedentary age-matched males who served as controls
subjects. Total cholesterol, LDL- and HDL-cholesterol were
higher in the sportsmen but the difference was only
significant in total and LDL-cholesterol (p<0.05).
Triacylgylcerol was significantly lower (p<0.05) in the
sportsmen. In addition, serum uric acid level was higher in
the sportsmen (p<0.05), but the albumin values were not
significantly different. The lipid hydroperoxide was
significantly higher in the sportsmen (p<0.05) suggesting
higher oxidative stress. It is possible that the higher uric
acid, HDL-cholesterol and comparable albumin levels could
ameliorate oxidative stress in the sportsmen. Since exercise
remains a key aspect of a healthy life, a better knowledge
on how to balance oxidative stress and antioxidant status
during exercise would help to promote good health.
Key
words:
Sportsmen, antioxidant status, serum lipids, uric acid,
albumin, lipid hydroperoxide. |
