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Your muscles require more energy when they are active during exercise. Muscles in your body metabolise glucose (sugar) in your bloodstream, breaking it down and taking it in to generate a high energy molecule known as ATP, which is essential for a cells functioning. Part of this process requires oxygen to fully break down the glucose-so when you need more energy metabolised, you'll need more oxygen too. If you don't get enough oxygen, your muscles will not be able to fully break down available glucose, they'll become fatigued and produce lactic acid instead- giving you a sore welling.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoWhen you exercise, your muscles are moving quicker. so the blood cells need more oxygen the carry to the muscles. they do it quicker because since you are moving quicker, the blood cells need to go back to the heart to get more oxygen to give to the muscles. you need more oxygen because your muscles need oxygen more often.
Wiki User
∙ 14y agoOxygen is needed by our cells all the time for aerobic respiration, but more is needed during exercise, because more aerobic respiration is taking place. Our muscles convert oxygen and glucose into energy, which is needed for muscle contraction/movement. So, when we exercise, our muscles contract more, therefore more energy is needed, and so more oxygen and glucose are required. During exercise, our breathing and heart rates increase to allow more oxygen to reach our cells, to enable more aerobic respiration to take place. If the supply of oxygen can't keep up with demand from the muscles, anaerobic respiration occurs. Here, glucose is turned into energy without oxygen. Unfortunately, this process is nowhere near as efficient, and lactic acid is produced as a waste product, which is a toxin, and causes muscle fatigue. To get rid of the lactic acid, we need...oxygen again, which converts the acid into carbon dioxide and water, substances that can now be easily excreted from the body. One of the benefits of regular exercise is that you spend less time respiring anaerobically.
Wiki User
∙ 12y agoIn order to work properly our body needs oxygen. To get that oxygen the heart pumps oxygenated blood throughout our body. When exercising the body's demand for oxygen increases as the more strenuous the exercise is. The more the body moves the more oxygen it takes to keep it moving because the entire body is having to work together to go faster, longer, etc.
Wiki User
∙ 15y agoYou need oxygen to help metabolize glucose into energy. Exercise=greater energy demands= more oxygen needed= more breaths per minute.
Wiki User
∙ 14y agoYou Take In More Oxygen when you are exercising because you get warmed up and get your heart going and so your heart goes faster and so you need more oxygen
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Why do you breath harder when exercising?
your body needs to get rid of CO2 that has built up and it needs to get oxygen for energy a lot quicker. so you take bigger breaths which release more CO2 and bring in more oxygen.
Why does the heart pump faster when you are exercising?
To compensate for the body requiring more oxygen because of exercising
What type of air that lungs put into blood cells?
Oxygen, but most of the oxygen you take in will probably get breathed out again, depending on wether or not you are exercising, and how hard you are exercising. it's not much of an elaboration, if that's what you were going for, but I tried.
Why does heart rate increases?
because you need more oxygen to be delivered to the muscle and more waste to the lungs. when you are exercising your muscles need oxygen so the blood stars pumping faster to get the oxygen to the muscles.
How does the heart pump when you exercise?
When you are exercising, you are breathing in oxygen (O2) and it is get the heart to pump more blood to your body
Why do humans breath more when they are exercising?
Because when you exercise you are working your body very hard and your muscles need oxygen to move and when you are exercising your muscles need more oxygen which results in you breathing more.Hope this helped.xxxyour heart is pumping fast, your lungs need to keep up with the amount of oxygen it needs to put in the blood for say a 160BPM
What happens to the pH in exercising muscles?
When exercising the pH in the muscles becomes more basic. This is because an increase in temperature in the muscles during exercise reduces the attraction pf haemoglobin with oxygen.
Why do you breathe slower when you are at rest or sleep?
Because you don't need to get as much oxygen to your blood for respiriation as you do not need more energy. When you are exercising you breathe faster to get that extra oxygen.
Why do you breathe more quickly while exercising?
When you exercise, your body uses up more oxygen, which your body's cells need as fuel. You also produce more waste gas (carbon dioxide) because the cells are working harder. You breathe heavily when exercising because you need to expel more carbon dioxide than usual from your lungs and take in more oxygen than usual.
Why is it a good idea to at least an hour between eating and exercising?
Exercising after eating can compromise oxygen and nutrient delivery to muscles.
Why do humans breath fast when they exersice?
Exercising elevates heart rate, and thus blood flow. In order to compensate for the quickly expended oxygen in that pumping blood, we breathe faster to inhale more. Breathing through the nose allows for more oxygen to enter the body than through the mouth, so panting should be avoided when exercising.
A person who is exercising vigorously breathes more deeply and rapidly than someone who is restingGive two reasons why this is necessary?
well I think this is so, because our body need more oxygen than it does, when we are sleeping or relaxing, this is so because our lungs and muscles that lift the the ribs are tired and need oxygen to keep them going. Just a guess, nothing much! Peace!
