Sarah’s breathing changes because when you jog, your muscles need more oxygen to keep going. Your body responds by making you breathe faster and deeper so more oxygen gets into the blood and carbon dioxide is removed. This also makes your heart beat quicker to pump the oxygen-rich blood to the muscles.
When you stop jogging and rest, your muscles need less oxygen, so your breathing slows down and returns to normal. The body automatically adjusts the breathing rate to match the amount of oxygen the muscles require at that moment.
When you stop jogging and rest, your muscles need less oxygen, so your breathing slows down and returns to normal. The body automatically adjusts the breathing rate to match the amount of oxygen the muscles require at that moment.