In exercise, heart rate is generally used to measure exercise intensity. Compared with oxygen intake, calorie consumption and other indicators, the calculation of heart rate is simpler, more convenient and faster. However, the research shows that the correlation between the energy consumption of daily activities estimated by heart rate and the results measured by indirect calorimeter is 0.87, which is a relatively high correlation index, so it is very important to measure the exercise intensity with heart rate during exercise.

When the heart rate is low, the body mainly consumes sugar and fat, but at this time, the body exercises less and consumes less fat; When the heart rate is high, the total amount of exercise is large, but the body mainly consumes sugar as energy and consumes less fat. Therefore, in the case of reducing fat as the purpose of exercise, there will be a heart rate interval that is most suitable for reducing fat, which is the best heart rate for reducing fat.

Extended data:

Low heart rate: when the exercise intensity is not high, there is enough oxygen in the muscles, mainly aerobic breathing. Aerobic breathing consumes fat and sugar as energy for the body. Such as walking, jogging and so on.

High heart rate: When the exercise intensity is high, the oxygen supply of the circulatory system to muscle cells can't keep up, which increases anaerobic respiration. Anaerobic respiration only consumes sugar as energy for the body. For example, sprinting, middle-distance running and other sports.

Find your maximum heart rate (MHR? )。 To find your MHR, subtract your age from 220. It is generally believed that when you want to burn fat while doing aerobic exercise, your best heart rate can be controlled within the range of 65%-70% of your maximum heart rate, which is your best heart rate for reducing fat.

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