Indirect calorimetry
What Indirect calorimetry means in Physical Education A-Level, as defined for AQA.
Definitions of Indirect calorimetry
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Reference: AQA
A method that estimates energy expenditure without measuring heat directly, by measuring oxygen uptake and carbon dioxide production while a performer breathes through a mouthpiece or mask.
A measurement that estimates energy expenditure from oxygen uptake and carbon dioxide production, using the respiratory exchange ratio (RER).
A method that estimates energy expenditure from respiratory gas exchange rather than measuring heat directly.
Topics that use Indirect calorimetry
- Energy systems (AQA A-Level)
- The role of technology in physical activity and sport (AQA A-Level)
Related terms
- Respiratory exchange ratio
- Absolute and relative values
- Access, participation and performance
- Adaptation for age
- Adaptation for disability
- Aerobic and anaerobic adaptation
- Aerobic energy system and endurance performance
- Aerobic energy transfer
Using Indirect calorimetry in the exam
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