The main thing is to look at the heartbeat heart rate changes.
High blood pressure, high blood fat, high blood sugar people, the most taboo is a sudden increase in heart rate. Especially high blood pressure patients, in the case of a very large such very intense exercise, the heart will beat violently, resulting in an increase in systolic blood pressure, on the one hand, it will be very easy to appear on the body's functions, such as breathing difficulties, chest tightness and so on a series of symptoms, on the other hand, sometimes if the blood vessel elasticity is poor, and may even be due to the intense exercise lead to the body of the thrombosis or cerebral hemorrhage symptoms.
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Checking the heart rate is more accurate a way is electronic detection, if you are in the gym exercise, you can through the treadmill on the heart rate table, to see their own heartbeat condition, the age of more than 30 years of age, the heart rate of more than 150 or more, can be considered to have entered the state of strenuous exercise.
The definition of strenuous exercise is different for people of different ages, so there is a corresponding table that you can actually look up yourself online.
Three high people, do not feel that their physical state can be, and then exercise at will. When exercising, the change of heart rate is not particularly obvious feeling, mandatory requirement of their own exercise, which is very irresponsible behavior.
Because there are times when you are doing exercise, you will not have a very obvious feeling for your heart rate, but when you stop, you will feel your heart rate is too fast, and this time, your body may have entered into a state of persistent hypoxia, which may affect your body's recovery in the later stages.
So the movement itself should be gradual, at first, you can, in advance, do some walking, jogging, or some static such as tai chi, such a movement, slowly and then increase the amount of exercise, do not rush, slowly is to increase the physical fitness of a better way.