why does the heart rate increase after exercise

Exercise increases the rate at which energy is needed from food. This increases the need for
both food and oxygen in the body. This is why your pulse rate and breathing rate increase with exercise. Your pulse is just an indication of your heart rate as your arteries expand each timethe ventricles pump blood out of the heart. Your heart speeds up to pump extra food and oxygen to the muscles. Breathing speeds up to get more oxygen and to get rid of more carbon dioxide. When a fit person, such as an athlete, exercises the pulse rate, breathing rate and lactic acid levels rise much less than they do in an unfit person.


The time which it takes for pulse and breathing rate to return to normal is called the
recovery time, and the fitter you are, the shorter your recovery time. Understanding the difference between blood pressure and pulse While your blood pressure is the force of your blood moving through your blood vessels, your heart rate is the number of times your heart beats per minute. They are two separate measurements and indicators of health. For people with (HBP or hypertension), there s no substitute for measuring blood pressure. Heart rate and blood pressure do not necessarily increase at the same rate A rising heart rate does not cause your blood pressure to increase at the same rate.


Even though your heart is beating more times a minute, healthy blood vessels dilate (get larger) to allow more blood to flow through more easily. When you exercise, your heart speeds up so more blood can reach your muscles. It may be possible for your heart rate to double safely, while your blood pressure may respond by only increasing a modest amount. Heart rate and exercise In discussions about high blood pressure, you will often see heart rate mentioned in relation to exercise.


Your is based on age and can help you monitor the intensity of your exercise. If you measure your heart rate (take your pulse) before, during and after physical activity, you ll notice it will increase over the course of the exercise. The greater the intensity of the exercise, the more your heart rate will increase. When you stop exercising, your heart rate does not immediately return to your normal (resting) heart rate. The more fit you are, the sooner your heart rate will return to normal. Learn more This content was last reviewed October 2016.

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