NDLI: Endurance training attenuates exercise-induced oxidative stress in erythrocytes in rat

Content Provider	Springer Nature Link
Author	Oztasan, Nuray Taysi, Seyithan Gumustekin, Kenan Altinkaynak, Konca Aktas, Omer Timur, Handan Siktar, Erdinc Keles, Sait Akar, Sedat Akcay, Fatih Dane, Sel Gul, Mustafa
Copyright Year	2003
Abstract	The aim of this study was to investigate whether endurance training reduces exercise-induced oxidative stress in erythrocytes. Male rats (n=54) were divided into trained (n=28) and untrained (n=26) groups. Both groups were further divided equally into two groups where the rats were studied at rest and immediately after exhaustive exercise. Endurance training consisted of treadmill running 1.5 h·day−1, 5 days a week for 8 weeks, reaching the speed of 2.1 km·h−1 at the fourth week. For acute exhaustive exercise, graded treadmill running was conducted reaching the speed of 2.1 km·h−1 at the 95th min, 10% uphill, and was continued until exhaustion. Acute exhaustive exercise increased the erythrocyte malondialdehyde level in sedentary but not in trained rats compared with the corresponding sedentary rest and trained rest groups, respectively. While acute exhaustive exercise decreased the erythrocyte superoxide dismutase activity in sedentary rats, it increased the activity of this enzyme in trained rats. On the other hand, acute exhaustive exercise increased the erythrocyte glutathione peroxidase activity in sedentary rats; however, it did not affect this enzyme activity in trained rats. Erythrocyte glutathione peroxidase activity was higher in trained groups compared with untrained sedentary group. Neither acute exhaustive exercise nor treadmill training affected the erythrocyte total glutathione level. Treadmill training increased the endurance time in trained rats compared with sedentary rats. The results of this study suggest that endurance training may be useful to prevent acute exhaustive exercise-induced oxidative stress in erythrocytes by up-regulating some of the antioxidant enzyme activities and may have implications in exercising humans.
Starting Page	622
Ending Page	627
Page Count	6
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	91
Issue Number	5
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2003-12-18
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Antioxidant enzymes Endurance training Erythrocyte Exhaustive exercise Glutathione Lipid peroxidation
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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