Platelet aggregation, lipids and excretion of catecholamines after acute physical exercise in patients with myocardial infarction.

The effect of acute physical exercise and a four-month conditioning program on cardiovascular risk factors was investigated in patients with myocardial infarction. The bicycle exercise testing caused a moderate rise in urinary epinephrine, serum cholesterol and HDL cholesterol levels. The changes in platelet aggregation and urinary catecholamines were markedly greater in the group with exercise induced ischaemic changes. Under the effect of the conditioning program a significant improvement in the performance capacity and circulatory response could be observed. The direction of changes in platelet aggregation and in the lipid parameters were favourable too.