Giada F, Baldo-Enzi G, Balocchi M R, Zuliani G, Baroni L, Fellin R
Department of Internal Medicine, University of Padua, Italy.
Int J Sports Med. 1988 Aug;9(4):270-4. doi: 10.1055/s-2007-1025020.
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 (P less than 0.05) and LDL cholesterol (P less than 0.05) and had significantly higher levels of HDL cholesterol (P less than 0.01) and HDL2 cholesterol (P less than 0.001). Significantly lower serum cholesterol/HDL cholesterol (P less than 0.001) and LDL cholesterol/HDL cholesterol (P less than 0.001) ratios and a significantly higher HDL2 cholesterol/HDL3 cholesterol ratio (P less than 0.001) 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.
对14名年轻男性自行车运动员和21名年龄匹配的久坐不动的对照组人员进行了血清脂质和脂蛋白水平、载脂蛋白A-I和B以及脂解酶活性的研究。两组之间血清胆固醇无显著差异，但自行车运动员的血清甘油三酯（P<0.05）和低密度脂蛋白胆固醇（P<0.05）显著降低，高密度脂蛋白胆固醇（P<0.01）和高密度脂蛋白2胆固醇（P<0.001）水平显著升高。运动员的血清胆固醇/高密度脂蛋白胆固醇（P<0.001）和低密度脂蛋白胆固醇/高密度脂蛋白胆固醇（P<0.001）比值显著降低，而高密度脂蛋白2胆固醇/高密度脂蛋白3胆固醇比值显著升高（P<0.001）。运动员的血清载脂蛋白B较低，载脂蛋白B/载脂蛋白A-I比值显著降低。两组之间的血浆肝素后脂蛋白脂肪酶活性（LPL）和肝甘油三酯脂肪酶活性（HTGL）无显著差异，高密度脂蛋白胆固醇与脂解酶活性之间也无相关性。总之，这项横断面研究可能表明，像骑自行车这样的有氧训练计划与有利的脂蛋白模式相关；脂解活性以外的一些因素可能有助于在体育锻炼中提高高密度脂蛋白胆固醇水平。
