Question

What is the source of error for the effect of exercise on the breathing rate?

Answer 1

A trained athlete's heart can pump more blood than average with each beat, therefore, his or her heart rate is slower. Likewise, an athlete's recovery time is shorter. Similar to the heart, the lungs have two ways to increase oxygen intake in response to a changing demand during exercise.

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Answer 2

ĀNSWĒR ⏬⏬

⭐ This is because oxygen is needed to burn calories more efficiently. Since the blood picks up oxygen in the lungs, and the demand for oxygen increases during exercise, the lungs must work harder.

✨With a faster breathing rate, more oxygen is picked up at the lungs for delivery to the working 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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