Abstract:

Objective: Our aim was to determine the effects of exercise on blood lipids especially on HDL- cholesterol and the oxidant-antioxidant status and associations between blood lipids, and the oxidant-antioxidant status. Methods: Blood lipids, antioxidant enzymes like erythrocyte GpX and SOD, plasma TBARS as an indicator of lipid peroxidation, total antioxidant status, antioxidant molecules like albumin, uric acid, and biluribin were measured in healthy young sedentary and exercising men. Our study group was composed of volunteers from the navy ; 34 were sedentary (Group A) while 44 exercised 7-14 hours (Group Bl) and 35 exercised 42 hours (Group Bl I) weekly. Results: Mean (standard deviation) of HDL- Cholesterol in Groups A, Bl, and Bll were 35.7(7.3), 36.7(9.6), and 35.3( 9.7) mg/dl respectively. Similarly mean (standard deviations) for antioxidant/oxidant status were found as follows: GpX :17.4(7.9), 22.2(7.6), and 29.1(7.6); SOD: 2249.6(1263), 1835(689), and 1594(510) U/ gHb ; for total antioxidant status (TAS): 1.8(0.46), 2.0(0.9), and 1.9(0.4)mmol/L; TBARS: 0.48(0.16), 0.83(0.57), and 0.63(0.08) nmol/L. Conclusion: No favorable effects of exercise on blood lipids were detected, however the effect of exercise on fibrinogen was beneficial . SOD decreased and GpX increased significantly with exercise. There was no significant difference in TAS among the sedentary and exercising groups.

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