Understanding the procedure.
Respiratory gas analysis records oxygen uptake and carbon dioxide output under defined conditions to estimate energy expenditure. Food, exercise and rest before the test influence the measurement.
What matters for you.
Interpretation considers body composition, symptoms, diet and laboratory findings where appropriate. One unusual result does not diagnose a hormonal or metabolic disease. At IUNE it informs practical next steps in nutrition, activity and investigation.
Explore the related areaSources & further information
Methods for measuring energy expenditure ↗General information for orientation. Personal examination and medical assessment determine the appropriate approach.

