If girls after running, the normal range of heart rate is directly related to age, heart rate should be controlled in (220 – girls age x 80%), within this interval are normal. If a girl’s heart rate after running exceeds this indicator, there are usually several factors as follows, 1, if a girl has heart insufficiency, or chronic myocardial strain, or myocardial cells are ischemic, hypoxic, the heart rate after running will be higher than the above level. 2, if the amount of exercise is too large or the exercise is overly strenuous, it will also appear that the heart rate exceeds the above situation. If there is a significant increase in heart rate after running and it is higher than the normal index, strict rest must be taken and the amount of exercise should be controlled appropriately.