What is the normal heart rate for exercise? If a patient is consulted, he or she should be advised to exercise according to his or her ability, but there is a formula to determine what kind of exercise is most appropriate for the situation. If a normal person is exercising, the maximum heart rate is 220 minus age, multiplied by 0.8. 220 minus age, multiplied by 0.6, is the minimum heart rate. If the patient has organic heart disease, it is recommended to take the pulse in the morning. The pulse multiplied by 0.4 is the lower limit of the exercise heart rate, and the pulse rate in the morning multiplied by 1.8 is the upper limit of the exercise heart rate, so it is necessary to determine whether the patient or normal exercise is reasonable according to the formula. Some young people have elevated cardiac enzymes due to lack of exercise in general and sudden over-exercise, mainly in the form of elevated creatine kinase. However, the level of creatine kinase isoenzyme, which is an indicator of heart damage, is not high, probably because the rhabdomyolysis has been damaged, and in serious cases, rhabdomyolysis can occur, requiring dialysis and even endangering life. So exercise should be started slowly, increasing from a small amount to a large amount, and in moderation.