Resting Energy Expenditure information and pre-test requirements

What is REE?

• REE measures the amount of energy (that is, calories) your body uses while in a rested state.
• It is calculated by measuring the amount of oxygen the body consumes and the amount of carbon dioxide produced.

Why Measure REE?

• To assess your body's energy requirements (calorie requirements) at rest.
• To inform your trainer and dietitian/nutritionist how best to tailor your fitness program to get results.

REE Test Protocol

• Your height and weight will be measured.
• You will be required to lie for 20 minutes before we start the measurement.
• You will then lie with a clear canopy over your head, which measures you breathing, for a further 30 minutes.
• Room air is drawn through the canopy at a fixed rate, while the air you breathe out of the canopy is collected and analysed for oxygen and carbon dioxide levels.
• Total testing session time is 1 hour.

Pre test requirements:

• No food or exercise for 3 hrs prior.