Why does a person breathe faster and deeper when exercising?

Answer 1

Proper breathing while exercising is very important. A person breathes deeper while exercising because their muscles need more oxygen, which means more blood cells need oxygen to carry to the persons muscles.

Answer 2

Because as your exsercising, you are using you muscles and energy, and what do we need to make energy? ( GLUCOSE +RESPIRATION = ENERGY + CO2) so in order to make more energy you need to respire more which is why you start breathing faster, if you didn't you wouldn't be able to carry out the exercise you were doing.

Answer 3

When your muscles move, they take in oxygen and use it to trigger the chemical reactions that result in muscle movement. As a result of these reactions, your muscles excrete carbon dioxide as a waste product. Both oxygen and carbon dioxide are transferred between your muscles and lungs via your blood. Strenuous activity (like exercise) means that the muscles require more oxygen than your body is capable of generating by breathing at a normal pace. As a result, you breathe harder to take in more oxygen, and your heart pumps faster in order to deliver oxygen to (and remove carbon-dioxide from) your muscles which are demanding it at a higher rate than normal.

Answer 4

As the muscles burn up calories (energy), they need to enable an increased supply of oxygen (air). So, breathing faster and deeper compensates for the effort involved. Training also means that the build-up of lactic acid in the muscles of a very fit person, is got rid of quicker the fitter a person is.