[Sudden cardiac death during exercise in the elder persons].

Sudden cardiac death during exercise is consequent on the myocardial infarction which is caused by acute coronary occlusion, triggered by the rupture of unstable plaque due to temporary exercise hypertension in the hyper-coagulable conditions induced by dehydration and increased sympathetic activity. Fortunately, most cases were witnessed by audience and could be saved the life with AED. The elder persons should have medical checks in which the coronary risk factors are evaluated before aerobic exercise. Mild exercise such as spinal stretch walking is recommended to the elder persons with multiple coronary risk factors.