indirect calorimetry uses — to determine caloric expenditure
respiratory gasses; oxygen and carbon dioxide
Indirect calorimetry uses the measurement of oxygen consumption (VO2) and carbon dioxide production (VCO2) to determine caloric expenditure. The process involves measuring the amount of oxygen a person consumes and the amount of carbon dioxide they produce while at rest or during physical activity. Based on these measurements, the body’s energy expenditure can be determined, as the amount of oxygen used by the body to produce energy is proportional to the number of calories consumed. Indirect calorimetry is a valuable tool in assessing metabolic rates, determining daily calorie needs, and developing personalized nutrition and exercise plans for individuals.
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