[Physical activity].

There are a total of 30 publications regarding the role physical exercise in primary prevention of coronary artery disease, nearly a quarter of a million patients have participated in these studies. The average observation time reaches 10 years. According to the guidelines of the ACC/AHA Task Force this is the basis for the evidence/recommendation class I. The benefit derived from this treatment considerably exceeds the risk; thus, there is no need for additional studies. A great number of population-based risk factors were evaluated; in several randomized studies and meta-analyses concordant results were achieved with respect to direction and degree of the therapeutic effect (Level B).