The influence of twelve weeks of aerobic training on the blood lipids of middle-aged men.

Lipoprotein profiles revealed a significant increase in total cholesterol between trained and control groups and an increase of HDL-C in both groups after exercise. There were no significant differences in resting cholesterol levels, nor in LDL-C after exercise in both groups. The results of the study suggest that improvement in work capacity as a result of training is not necessarily accompanied by changes in the lipid profile.