Ventilation
during excercise
start
Quick Facts
When you excercise, your muscles work harder. In turn your body produces more carbon dioxide.
To cope, your breathing has to increase from about 15 times a minute when you are resting, up to about 40-60 times a min during excercise.
From 12 liters of air to 100 liters of air
More oxygen results in more energy for your body's muscles.
....................
....................
Respiratory System
The function of the respiratory system for the cardiovascular system is to increase blood flow and oxygen delivery to contracting muscles.
Primary functions of the respiratory system during exercise are to:
- Maintain arterial oxygen saturation
- Facilitate the removal of carbon dioxide from contracting muscles
- Contribute to acid-base balance
- Expel carbon dioxide
- Regulate hydrogen ion concentration
- Regulate fluid and temperature balance during exercise
Respiratory response
The air that is exhaled during exercise is humidified and is at body temperature. And so you can lose some fluid and heat from the respiratory system. The respiratory system achieves this by increasing both the minute and the alveolar ventilation.
Because not all of the airways are involved in gas exchange, and there is a dead space, the alveolar ventilation is really the effective ventilation of the lungs that leads to gas exchange. During exercise under certain conditions, there may be fluctuations in ventilation diffusion such that the physiological dead space may alter slightly.
Systems Fuse
During exercise, two of the important organs of the body come into action: the heart and the lungs. The lungs bring oxygen into the body, to provide energy, and remove carbon dioxide, the waste product created when you produce energy. The heart pumps the oxygen to the muscles that are doing the exercise.
The process of the respiratory SytsTem
The respiratory system oxygenates the pulmonary arterial blood so that the blood that returns to the left atrium is fully oxygenated and they can, therefore, be sent around to the rest of the body. As you can see from this graph, pulmonary oxygen exchange and CO2 exchange occurs by diffusion in the lungs and therefore is critically dependent on the partial pressure difference between the alveolar gases and the blood gases passing through the pulmonary circulation.
Ventilation during excercise
During exercise, there’s an increase in cardiac output and an increase in pulmonary blood flow which reduces the transit time. But there’s a drop In the mixed venous PO2, as the contracting muscles and other active tissues in the body consume oxygen. But, you can see, over time, there’s equilibration, so that by the time, the blood is leaving the lungs, it’s fairly much fully oxygenated.
Clearly then if there are challenges to this, either by going to altitude, which would lower the inspired PO2 or if there are further increases in pulmonary blood flow, such that the transit time decreases then there is the risk of pulmonary, incomplete pulmonary gas exchange and some level of arterial desaturation. In most healthy people, exercising at sea level, the arterial oxygen saturation and partial pressure are pretty well maintained.
After anaerobic activity, oxygen is needed to neutralize the lactic acid. This is called an oxygen debt. It is repaid after exercise.The oxygen reacts with the lactic acid to form CO2 and water.
Rapid and deep breathing is needed for a short period after high intensity exercise in order to repay the debt.This also helps to remove the carbon dioxide which accumulates in the blood during intense exercise.
Why do we breath hard after stopping exercise?
Benefits of Excercise on the Respiratory System
- Intercostal muscles between the ribs contract, pulling the chest walls up and out
- The diaphragm muscle below the lungs contracts and flattens, increasing the size of the chest
- The lungs increase in size, so the pressure inside them falls. This causes air to rush in through the nose or mouth.
- Cardiovascular exercise, increases the efficacy of the respiratory system
- Lungs can distribute oxygen to the blood quicker, thus increasing the length of time before waste products are created.
- Muscles and cells are nurtured with more speed, and carbon dioxide gets released at a more rapid pace.
- When endurance is built, the lungs, and heart, don't have to work as hard to keep up with the demands of the body when exercising.
+ info
ViDEO
+ info
ConclusionRegular exercise helps to maintain the well performance of the respiratory system and keeps the body in a healthy state.
Breathing Techniques
thanks
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Transcript
Ventilation
during excercise
start
Quick Facts
When you excercise, your muscles work harder. In turn your body produces more carbon dioxide.
To cope, your breathing has to increase from about 15 times a minute when you are resting, up to about 40-60 times a min during excercise.
From 12 liters of air to 100 liters of air
More oxygen results in more energy for your body's muscles.
....................
....................
Respiratory System
The function of the respiratory system for the cardiovascular system is to increase blood flow and oxygen delivery to contracting muscles.
Primary functions of the respiratory system during exercise are to:
Respiratory response
The air that is exhaled during exercise is humidified and is at body temperature. And so you can lose some fluid and heat from the respiratory system. The respiratory system achieves this by increasing both the minute and the alveolar ventilation.
Because not all of the airways are involved in gas exchange, and there is a dead space, the alveolar ventilation is really the effective ventilation of the lungs that leads to gas exchange. During exercise under certain conditions, there may be fluctuations in ventilation diffusion such that the physiological dead space may alter slightly.
Systems Fuse
During exercise, two of the important organs of the body come into action: the heart and the lungs. The lungs bring oxygen into the body, to provide energy, and remove carbon dioxide, the waste product created when you produce energy. The heart pumps the oxygen to the muscles that are doing the exercise.
The process of the respiratory SytsTem
The respiratory system oxygenates the pulmonary arterial blood so that the blood that returns to the left atrium is fully oxygenated and they can, therefore, be sent around to the rest of the body. As you can see from this graph, pulmonary oxygen exchange and CO2 exchange occurs by diffusion in the lungs and therefore is critically dependent on the partial pressure difference between the alveolar gases and the blood gases passing through the pulmonary circulation.
Ventilation during excercise
During exercise, there’s an increase in cardiac output and an increase in pulmonary blood flow which reduces the transit time. But there’s a drop In the mixed venous PO2, as the contracting muscles and other active tissues in the body consume oxygen. But, you can see, over time, there’s equilibration, so that by the time, the blood is leaving the lungs, it’s fairly much fully oxygenated.
Clearly then if there are challenges to this, either by going to altitude, which would lower the inspired PO2 or if there are further increases in pulmonary blood flow, such that the transit time decreases then there is the risk of pulmonary, incomplete pulmonary gas exchange and some level of arterial desaturation. In most healthy people, exercising at sea level, the arterial oxygen saturation and partial pressure are pretty well maintained.
After anaerobic activity, oxygen is needed to neutralize the lactic acid. This is called an oxygen debt. It is repaid after exercise.The oxygen reacts with the lactic acid to form CO2 and water.
Rapid and deep breathing is needed for a short period after high intensity exercise in order to repay the debt.This also helps to remove the carbon dioxide which accumulates in the blood during intense exercise.
Why do we breath hard after stopping exercise?
Benefits of Excercise on the Respiratory System
+ info
ViDEO
+ info
ConclusionRegular exercise helps to maintain the well performance of the respiratory system and keeps the body in a healthy state.
Breathing Techniques
thanks