In Iran, Deaths due to coronary artery diseases is very increasing. And unfortunately every year due to lack of physical activity and decreased cardio activity the age group of this disease is decreasing in a way that now this disease is seen in the youth, And one of basic tools is changing the patients lifestyle in the educational program as a part of the treatment plan. This study has been done with the aim to compare the traditional training methods based on Health Belief Models on exercise performance in patients with myocardial infarction. In this Quasi- Experimental Research 74 patients with myocardial infarction were chosen by purposefully sampling method then they were chosen randomly in both training and control groups, Training Group achieved education based on the concepts and components of health beliefs model training aimed at increasing the Perceived severity of patients and Control group achieved traditional education. The health belief model of education based on the performance of activity in the experimental group than the control group found no significant difference (P = 0.000). The perceived benefits of physical activity after intervention using the Student T test with a mean of 46.19 in the test group and the average 94.17 in the control group was significant .Education on the Health Belief Model in patients with myocardial infarction increases the perceived severity of patients and improvement in performance activity.

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Regards
Jones carrol

Myocardial infarction is the most common health problem threatening human life in the world. about one and a half million cases of myocardial infarction occur in the United States of America, and every 30 seconds one is diagnosed with myocardial infarction. Every 10 minutes, one person loses his life due to myocardial infarction, and more than 50% of patients will need rehabilitation measures following myocardial infarction (3). It is estimated that by 2030, 32.5% of deaths would be caused by cardiovascular disease in Europe. Cardiovascular disease has also become a social problem in Iran. The disease accounted for the largest share with 4 deaths of every 6 deaths per 10,000 of population. Unfortunately, the age of onset of cardiovascular diseases has declined in Iran (4) and hence now, they are seen not only in the middle ages, but also in the young people. Accurate estimates of the prevalence of risk factors of cardiovascular diseases are unattainable; however, the prevalence of identified risk factors has changed by increased awareness among the patients and diet changes as well as changes in the patient's lifestyle (5, 6). It was observed in many studies conducted in order to detect risk factors on the incidence of cardiovascular disease in women(2010), That the risk of cardiovascular diseases is less in women with more physical activity who sit only for 4 hours a day than in women with low physical activity, It was mentioned in countless review articles that inactivity has a considerable role among risk factors for cardiovascular diseases with adverse effects on the progression of coronary atherosclerosis in men and women, and found that exercise may reduce the risk of coronary diseases (7). Considering the overwhelming evidence, the presence of relationship between the individuals' lifestyle and developing of cardiovascular diseases, the necessity of emphasis on individuals' lifestyle as an important factor in prognosis and prevention of recurrent cardiovascular diseases have been demonstrated. It should be noted that regular activity in patients who experienced heart attack lead to reduced risk of cardiac arrhythmias and improved perfusion through the coronary arteries and increased blood sub-flow to the heart and enables the person to return to the status before illness