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Table tennis is a popular sport
and a pleasant type of exercise. Exercise affects the redox status of
the body. The aim of the present study was to investigate the effect of
table tennis exercise on blood redox status markers in female athletes.
Ten elite female athletes, aged 16.1 ± 1.9 years, exercised in couples
for 20 min. Exercise included the execution, at maximal possible
intensity, of offensive movement (forehand spin) by one athlete and
block (forehand) by the other, with roles alternating every three
points. Before exercise, immediately post-exercise and one hour
post-exercise, the athletes provided venous blood samples for full blood
count and deter-mination of lactate, creatine kinase, as well as the
markers of redox status, glutathione, urate, bilirubin,
8-hydroxy-2´-deoxyguanosine, malondialdehyde, and protein carbonyls.
Exercise induced hemoconcentration, leukocytosis, and increase of
lactate. Reduced glutathione did not change significantly, while urate
and bilirubin changed significantly, with an increase immediately
post-exercise and a decrease one hour post-exercise. Although no
significant change was found in 8-hydroxy-2´-deoxyguanosine or protein
carbonyls, malondialdehyde changed significantly, with an increase
immediately post-exercise and a decrease one hour post-exercise. We
conclude that, although the particular type of table tennis exercise
caused exercise-induced stress, it did not induce prolonged changes on
blood redox status markers of elite female athletes. |