after running or doing some sort of exercise, states what happends inside of your body like in your respiratory system or circulatory. after exercising for 3 minutes, take your pulse rate for 15 seconds then rest for a minute then take your pulse again for another 15 seconds. do this 10 times and record the number.What patterns appear in ur numbers??
2007-03-03 23:12:33 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Biology
This seems straight forward enough. Your heart rate will slowly return to its pre-exercise values. When you exercise, you burn calories faster and therefore use up oxygen faster and create carbon dioxide faster. This is why you need to breathe faster. Also the amount of carbon dioxide in your blood affect the pH of the blood. Therefore, you need to get rid of the excess carbon dioxide ina hurry in order to keep your blood pH stable at 7.4. Your heart rate and blood pressure go up also during exercise in order to provide your muscles with more nutrients, oxygen, and it also helps bring the carbon dioxide to your lungs so you can get rid of it. When your heart beats faster and/or works harder, it is said that you increase your cardiac output (heart rate x stroke volume) and this helps distribute blood faster to the organs that need it.
2007-03-04 01:14:52 · answer #1 · answered by misoma5 7 · 0⤊ 0⤋
It calls for more oxygen making you breath harder. It will increase then decrease repeatably.
2007-03-04 09:23:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋