Muhammad Binyameen, Akbar Khoja, Razia Sultana, Murad Khan, Naheed Qadir, Kkhalid Fahim Yasin.
Effect of a Single Session of Mild Exercise on Serum Lipid Levels in Healthy Males.
Ann King Edward Med Uni Jan ;7(1):18-20.

The effect of low-intensity exercise, (brisk-walking adjusted at the pace of z1.7 m/s), for two hours on serum lipid levels and the time sequence associated with changes in these blood constituents was investigated in 16 trained age and weight-matched healthy subjects. Fasting blood samples were drawn before, at 60 and 120 minutes after the beginning of exercise. A fourth blood sample was drawn after a 30-minute recovery period. No statistically significant changes were observed in the serum levels of triacylglycerols and low-density lipoprotein cholesterol (LDL-c) at all intervals as compared to the pre-exercise concentrations. The total cholesterol concentration was elevated at all intervals but the change was not statistically significant (except for 150 min sample) when compared with the pre-exercise period concentrations. High-density lipoprotein cholesterol (HDL-c) level was significantly elevated within two hours after the start of exercise and after the 30-minute recovery period with P<0.05. HDL-c to LDL-c ratio followed a similar pattern as HDL-c with P<0.05. The results of the present study suggest that a mild exercise in the form of 2-hour brisk walking can acutely improve the lipid profile, in healthy young males.

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