Heart rate is one of most easily measured exercise test variables. Although easily measured, the heart rate reflects a complex, integrated physiologic response. During the last two decades exercise test-derived heart rate variables have raised wide interest as prognostic markers of mortality and cardiac events both in asymptomatic persons and in patients with cardiovascular disease. This book summarizes the main results from four follow-up studies on the prognostic value of the heart rate response to a maximal exercise test in the Kuopio Ischemic Heart Disease Study. The unique approach in...