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Abstract
Acute exercise promotes raised HDL cholesterol concentrations by lipolysis stimulation,
but this effect is insufficient to explain the more permanent HDL increases seen during
regular exercise. During training periods in a group of marathon runners, we measured
lipid transfer protein I (LTP-I)-mediated cholesteryl ester transfer activity (CETA)
and its relationship to their HDL concentrations. Runners of both sexes showed significantly
lower CETA values than those of sedentary controls. Male runners also had significantly
lower serum concentrations of triglyceride, VLDL cholesterol and apolipoprotein B,
and significantly higher concentrations of HDL cholesterol and apolipoprotein A-I
than male controls. Results indicate that regular practice of aerobic exercise promotes
modifications of lipoprotein metabolism related not only to lipolysis, but also to
lower CETA. Such modifications are associated with reduced risk of atherosclerosis.
Keywords
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Article info
Publication history
Accepted:
February 18,
1993
Received in revised form:
October 26,
1992
Received:
June 22,
1992
Identification
Copyright
© 1993 Published by Elsevier Inc.