Heparin-released plasma lipase activities, lipoprotein and apoprotein levels in young adult cyclists and sedentary men
Deutscher übersetzter Titel: | Durch Heparin freigesetzte Lipase-Aktivitaeten im Plasma, Lipoprotein-und Apoproteinspiegel bei jungen erwachsenen Radsportlern und untrainierten Maennern |
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Autor: | Giada, F.; Baldo-Enzi, G.; Balocchi, M.R.; Zuliani, G.; Baroni, L.; Fellin, R. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 9 (1988), 4, S. 270-274, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-2007-1025020 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU198807012413 |
Quelle: | BISp |
Abstract
Serum lipid and lipoprotein levels, apolipoproteins A-I and B, and lipolytic enzyme-activities were studied in 14 young male cyclists and in 21 age-matched sedentary controls. While there were no significant differences in serum cholesterol between the two groups, the cyclists showed a significant decrease in serum triglycerides and LDL cholesterol and had significantly higher levels of HDL cholesterol and HDL2 cholesterol. Significantly lower serum cholesterol/HDL cholesterol and LDL cholesterol/HDL cholesterol ratios and a significantly higher HDL2 cholesterol/HDL3 cholesterol ratio were observed in the athletes. Serum apolipoprotein B was lower and the Apo B/Apo A-I ratio significantly reduced in the athletes. No significant differences emerged between the two groups in plasma post-heparin lipoprotein lipase activity (LPL) and in hepatic triglyceride lipase activity (HTGL), and there were no correlations between HDL cholesterol and lipolytic enzyme activities. In conclusion, this cross-sectional study may indicate that an aerobic training program such as cycling is associated with an advantageous lipoprotein pattern; some factors other than lipolytic activity may contribute to increase the HDL cholesterol levels in physical training. Verf.-Referat