A condition characterized by the formation of a dense wedge-shaped block of dead tissue in the myocardium following an interruption to its blood supply. Heart tissue dies when deprived of oxygen and the patient has a ‘heart attack’. If the interruption to the blood supply is towards the end of a coronary artery, the heart attack may be very mild. If it is towards the beginning of the artery, however, the amount of tissue affected maybe large and the heart attack is severe. During a severe heart attack, the patient experiences sudden and very severe chest pains, which may spread to the arms and throat. The risk of having a heart attack is increased during the period of vigorous exercise, but regular aerobic exercise, if properly prescribed and supervised. significantly reduces the overall risk of heart attack. Exercise is often prescribed to post-myocardial infarction patients as an integral part of their rehabilitation programme. ...
Reference Entry. 166 words.
Subjects: Sports and Exercise Medicine
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