Plasma lipid and lipoprotein responses during exercise

Ferguson, M. A., Alderson, N. L., Trost, Stewart G., Davis, P. G., Mosher, P. E., & Durstine, J. L. (2003) Plasma lipid and lipoprotein responses during exercise. Scandinavian Journal of Clinical & Laboratory Investigation, 63(1), pp. 73-79.

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Abstract

The purpose of this study was to examine the effect of prolonged exercise oil plasma lipid and lipoprotein concentrations and to identify caloric time-points where changes occurred. Eleven active male Subjects ran oil a treadmill at 70%,, of maximal fitness (VO2max) and expended 6 278.7 kilojoules (Kj) energy (1500 kcal). Blood samples were obtained at the 4185.8 Kj (1000 kcal) time-point during exercise and at each additional 418.6 Kj (100 kcal) expenditure until 6278.7 Kj was expended. After correcting for plasma volume changes, decreases in low-density lipoprotein cholesterol (LDL-C) were observed during exercise at time-points corresponding to 4604.4 and 5441.5 Kj (1100 and 1300 kcal) of energy expenditure, and immediately after exercise. Total cholesterol concentrations decreased significantly at exercise kilojoule expenditures of 4604.4, 5441.5 and 5860.1 (1100, 1300 and 1400 kcal). There were also exercise induced increases in high-density lipoprotein cholesterol (HDL-C) and HDL2-C concentrations immediately after exercise. Although acute lipid and lipoprotein changes are typically reported in the days following exercise, the Current data indicate that some lipoprotein concentrations change during acute exercise. Our data suggest that a threshold of exercise may be necessary to change lipoproteins during exercise. Future work Should identify potential mechanisms (lipoprotein lipase, cholesterol ester transport protein, LDL uptake) that alter lipoprotein concentrations during prolonged exercise.

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10 citations in Web of Science®

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ID Code: 72505
Item Type: Journal Article
Refereed: Yes
Keywords: acute exercise, cholesterol, HDL-C, LDL-C, lipids, lipoproteins, physical activity, hdl-cholesterol, serum-lipids, density, men, apolipoproteins, intensity, lipase, precipitation, increases
ISSN: 0036-5513
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Exercise & Nutrition Sciences
Deposited On: 03 Jun 2014 01:59
Last Modified: 03 Jun 2014 01:59

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