4 years ago

How and why does breathing rate increase during exercise

1 answer:

kondor19780726 [428]4 years ago

7 0

<span>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.
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