One minute before exercise, the heart rate is normally 60 to 100 beats per minute. Exercise before the human body is in a resting state, under normal circumstances, the human resting heart rate of 60 to 100 times / min, the heart rhythmic beating can be for the whole body blood transfusion, to ensure that the blood supply of various organs, and after the exercise of the human body’s oxygen consumption increases, the heart rate will show an increase in the trend of the whole body to meet the demand for blood and oxygen, at this time, the heart rate may even be up to more than 150 times / min. If the human heart rate before exercise is more than 100 beats / min, may be atrial fibrillation, premature beats and other rapid arrhythmia, if the heart rate is less than 60 / min, may be seen in some athletes, belong to the physiological phenomenon, but also may be the atrioventricular block and other slow-type arrhythmia. If there is a significant change in the heart rate, and the patient is accompanied by palpitations and other discomforts, it is necessary to go to the regular hospital in time for diagnosis and treatment to prevent the deterioration of the disease.