Apolipoprotein E genotype and exercise training-induced increases in plasma high-density lipoprotein (HDL)- and HDL2-cholesterol levels in overweightmen

We determined if the apolipoprotein E (APO E) genotype affects the exercise training-induced increase in plasma high-density lipoprotein cholesterol ( HDL-C) and HDL2-C, Sedentary overweight men on an American Heart Associatio n (AHA) step I diet had plasma lipoprotein-lipids measured before and after 9 months of endurance exercise training. APO E2 (n = 6), E3 (n = 33), and E4 (n = 12) groups were similar at baseline in terms of age, body weight an d composition, and plasma lipoprotein-lipid profiles. APO E2 men had a larg er increase in plasma HDL-C and HDL2-C with exercise training than APO E3 a nd E4 men (HDL-C, 8 +/- 4 v 3 +/- 1 v 2 +/- 1 mg/dL; HDL2-C, 5 +/- 3 v 1 +/ - 1 v - 1 +/- 1 mg/dL; mean +/- SE, all P < .01). After adjusting for body weight changes, the increases in plasma HDL-C and HDL2-C remained greater i n APO E2 versus E3 and E4 men (all P < .03). These results indicate that AP O E2 men may have greater plasma HDL-C and HDL2-C increases with endurance exercise training. Copyright (C) 1999 by W.B. Saunders Company.