the respiratory exchange ratio RER can be expressed as
vco2/vo2
The respiratory exchange ratio (RER) is the ratio of carbon dioxide released to the amount of oxygen consumed during cellular respiration. It is a measure of the type of fuel being used by the body. RER can be expressed as follows:
RER = VCO2/VO2
Where VCO2 is the volume of carbon dioxide produced and released by the body, and VO2 is the volume of oxygen consumed during a given time period (usually per minute) while an individual is at rest or performing a physical activity.
RER values range from 0.7 to 1.0, with 0.7 representing complete use of fat as the source of fuel and 1.0 representing complete use of carbohydrates. Intermediate values of RER indicate a combination of fat and carbohydrate metabolism. The RER value is affected by factors such as metabolic rate, diet, exercise, and oxygen availability.
The RER can be measured using indirect calorimetry, which is a technique that measures the exchange of oxygen and carbon dioxide during breathing. It is an important tool for monitoring metabolic rate and energy expenditure, as well as understanding the metabolic responses to different diets and exercise programs.
More Answers:
Factors Affecting Exercise Energy Expenditure: How to Optimize your WorkoutsWhy an RER of 1.0 indicates carbohydrate metabolism during prolonged exercise
How an RER of 0.70 Signals Effective Fat Burning During Exercise and Weight Loss Programs