Normally, this is right, but this should be decided according to the actual situation. First of all, we should evaluate our physical condition and arrange the exercise time and intensity reasonably according to scientific data. If we exercise blindly according to this data, it may not be effective, and may even cause some harm to the body. For example, if you are a person who has been exercising for many years, your heart rate is less than 50 under normal no-load conditions, and it may be less than 120 after strenuous exercise. So you have to go to some professional places to consult professionals to make plans.