Aims: evaluation of physical activity and the influence of outpatient cardiac rehabilitation on regular physical activity after surgical revascularization. Material and method: the study group consisted of 120 male patients, aged between 40-75 years with ischemic heart disease, who had undergone standard coronary artery bypass grafting procedure with extracorporeal circulation. In order to evaluate physical activity of the patients the Paffenbarger Physical Activity Questionnaire was used. The questionnaire was conducted twice, directly prior to the CABG procedure and 12 months after. The information concerning participation of the patients in outpatient cardiac rehabilitation was gathered during the first and second interview. Conclusion: 1. PPAQ showed a significant decrease in total energy expenditure related to physical activity within 12 months following the procedure. 2. Participation in the outpatient cardiac rehabilitation was an essential factor for undertaking physical activity within 12 months after surgical revascularization. 3. There was no correlation between participation in outpatient cardiac rehabilitation before surgical revascularization and the total weekly energy expenditure related to physical activity.