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The truth is that nobody really knows what causes the increase of ventilaion in exercise and keeps it close to metabolic rate.
CO2 is a powerful stimulator of breathing and an increase of CO2 is produced by the body in exercise.
This increase however is only found in the venous circulation where there are no chemoreceptors to detect it. All of the know chemoreceptors (aortic, carotid and central chemoreceptors) are found in the arterial side where there is relativly no fluctuation in the partial pressure of CO2.
Furthermore, when the chemoreceptors are denervated breathing can still increase as normal.
Other possible candidates that are involved in increasing breathing are, muscle chemoreceptors, efferencekopie, proprioreceptors, catecholamines, potassium levels...but all are either unlikley to be a cause or are impossible to measure (e.g. efferencekopie).
So the textbooks will tell you that ventilation remains close to metabolic rate, but they dont say (beacuse they dont know) how it is kept close to metabolic rate.
For further information on this look at works by Mike Parkes (university of Birmingham, United Kingdom).
What else can I help you with?
What is the Average minute ventilation?
The average minute ventilation in adults at rest is around 5-8 liters per minute. This value can increase during exercise or in situations where higher amounts of oxygen are required by the body. Minute ventilation is calculated by multiplying the tidal volume by the respiratory rate.
Why does pulmonary ventilation increase?
Pulmonary ventilation is the volume air that is breathed in or out in a single minute. It is the sum of the tidal volume (volume of air per breath) and the ventilation rate (the number of breaths per minute). For an individual's pulmonary ventilation to increase, there must be an increase in at least one of these two values. The individual can begin breathing deeper at the same rate (increasing tidal volume) or the individual can begin breathing faster at the same volume (increase ventilation rate) or both.
Why do you breathe faster during exercise than during sleep?
Exercise places greater oxygen demands on the body, therefore signaling the respiratory center to increase the rate of respiration in order to increase the oxygen supply to the body's muscles and other tissues.
How does exercise increase minute ventilation?
Minute ventilation is the amount of oxygen inspired by the body in a minute. It is increased by long term exercise because over time the body becomes more adept at bringing more oxygen in to the lungs to be taken to the working muscles. As tidal volume and breathing rate increases the minute ventilation will increase as more breathes will be needed to be taken to meet the high demand for oxygen. A healthy young person will take around 35-45 breathes per minute where as an athlete may take around 60-70 breaths per minute.
Can you exercise your heart like the other muscles in your body?
Absolutely. When you get your heart racing during (typically aerobic) exercise, you increase its ability to pump blood.
What is the thermic effect of exercise and how does it impact the body's metabolism?
The thermic effect of exercise refers to the increase in energy expenditure that occurs during and after physical activity. This increase in metabolism helps the body burn more calories and can contribute to weight loss or weight maintenance.
What are two main exercise to increase flexibility?
just one exercise can increase flexibility in a body and that is only all kind of physical exercise ,,
What can the breathing rate increase to during exercise?
During exercise, the breathing rate can increase to around 40-60 breaths per minute or even higher depending on the intensity of the exercise and individual fitness level. This increase in breathing rate helps to supply more oxygen to the muscles and remove carbon dioxide from the body.
When plasma pco2 increases do ventilation increase?
Yes, an increase in plasma PCO2 (partial pressure of carbon dioxide) triggers the respiratory system to increase ventilation in order to remove excess carbon dioxide from the body. This process helps maintain the body's acid-base balance.
How does exercise impact the storage and utilization of glycogen in the body?
Exercise increases the storage and utilization of glycogen in the body. During physical activity, muscles use glycogen as a source of energy. Regular exercise can increase the body's ability to store glycogen in muscles, leading to improved endurance and performance.
Hypercapnia causes minute ventilation to?
increase as the minute ventilation is the amount of carbon dioxide
Why do you pant when you exercise?
You pant when you exercise because your body is working hard to take in more oxygen to fuel your muscles. Panting helps increase oxygen intake and remove carbon dioxide, allowing your body to keep up with the demands of the exercise.
