The cost-effectiveness of exercise-based cardiac rehabilitation has not been systematically studied earlier in Finland, and it is not justifiable to directly apply the results of studies done in other countries to circumstances in Finland due to differences in the health care and social security systems between the countries. The research will utilize top Finnish expertise spanning clinical cardiology, health economics, and physical education. The hypothesis is that a quality-adjusted life year of a cardiac patient (cost/QALY) is 20 % less costly in a rehabilitation group than in a conventional post-acute care group.