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The Respiratory Exchange Ratio (or RER) is a measurement used in sport and health sciences. It relates to the relationship between the amount of oxygen taken up and the amount carbon-dioxide expelled during breathing cycles.
During exercise (and at rest) this measurement is used to determine how your body is utilising your available enegry stores.
An RER assessment is done using a respiratory gas anaylser, or a using a more traditional method using Douglas Bags.
The ratio is calculated by: the volume of carbon-dioxide expelled, divided by the volume of oxygen consumed. The resulting value can give a good (but not definitive) indication to the type of energy that your body is primarily consuming - (fat (FFA - Free Fatty Acids) or carbohydrate (CHO)).
Although RER is a good indicator of energy consumption, it should be noted the results can be tainted by other processes happening in the body (bicarbonate buffering of hydrogen ions during energy liberation cycles) which affect the reading of CO2 expelled.
What else can I help you with?
What significance of the changing epithelial along the respiratory tree?
The changing epithelial cells along the respiratory tree are specialized to perform different functions. For example, the ciliated pseudostratified columnar epithelium in the trachea and bronchi helps to move mucus and trapped particles out of the airways, while the simple squamous epithelium in the alveoli facilitates gas exchange. This specialization allows the respiratory system to efficiently carry out its functions of breathing and gas exchange.
What is respiratory medium?
A respiratory medium is a substance that facilitates the exchange of gases during respiration. In many organisms, including humans, air is the respiratory medium that allows oxygen to be taken in and carbon dioxide to be expelled. In aquatic organisms, water serves as the respiratory medium for gas exchange.
What is the relationship between rate of ion exchange and surface to volume ratio?
The rate of ion exchange is typically faster with a higher surface to volume ratio. This is because a higher surface area allows for more contact points for ions to interact with the exchange material, increasing the efficiency of the process. A higher surface to volume ratio provides more active sites for ion exchange to occur, leading to a more rapid exchange rate.
The main function of the respiratory system is to?
The main function of the respiratory system is the exchange of gases. It brings in oxygen and elmiinates carbon dioxide.
What are the main components in an earthworms respiratory system?
An earthworm's respiratory system consists of their skin, which is thin and moist, allowing for gas exchange with the environment. Oxygen is absorbed through the skin while carbon dioxide is released. There are no specialized respiratory organs such as lungs or gills in earthworms.
Respiratory exchange ratio if you were burning just fat?
0.7
What are respiratory surfaces?
Respiratory surface is the surface where respiratory gas exchange in an animal. Ex-lungs
What is respiratory gas exchange?
Respiratory gas exchange is the diffusion of both carbon dioxide and oxygen from the capillaries to the alveoli in our lungs, and vice versa.
What is called the Ratio between oxygen uptake and oxygen usage?
The ratio between oxygen uptake and oxygen usage is called the respiratory exchange ratio (RER). It is a measure of the ratio of carbon dioxide produced to oxygen consumed during metabolism. This ratio can vary depending on the type of fuel being used by the body for energy.
Where is the respiratory surface?
A respiratory surface is located anywhere in an animal or human being where gas exchange occurs. A respiratory surface is located anywhere in an animal or human being where gas exchange occurs.
What significance of the changing epithelial along the respiratory tree?
The changing epithelial cells along the respiratory tree are specialized to perform different functions. For example, the ciliated pseudostratified columnar epithelium in the trachea and bronchi helps to move mucus and trapped particles out of the airways, while the simple squamous epithelium in the alveoli facilitates gas exchange. This specialization allows the respiratory system to efficiently carry out its functions of breathing and gas exchange.
What happens at the respiratory membrane?
gas exchange
What is gas exchange in the respiratory?
Carbon dioxide
Does respiratory exchange take place in fetus?
no
What do the respiratory and the circulatory systems do together?
Working together, the respiratory and circulatory systems perform gas exchange from the blood to the lungs. This exchange occurs at the alveoli.
What happens if the surface area of the respiratory membrane decrease in gas exchange?
A decrease in the surface area of the respiratory membrane will result in a decrease in gas exchange.
Signs and symptoms of respiratory arrest?
what are signs or symptoms of a respiratory arrest
