To get the target heart rate there are several approaches, which the athlete or trainer to easily means it can be target heart rate for the workout division. To this end, the prime should be max heart rate (MHR) to accurately weighed. to achieve this goal, the athlete can have all the exercise and heart rate, the device electrocardiography recorded. Because the recorded heart rate by electrocardiography in the out of lab environment is very difficult., the number 220 for men and women, on average, and the default expression be; and since the heart rate with age is whatever the age, higher heart rate maximum is reduced. Thus the estimated heart rate max easy can be: