Your RMR measurement is made by analysing the amount of oxygen your body uses and the amount of carbon dioxide your body produces.
This energy is expressed in calories per day, so to put it simply, an RMR test provides an indication of how many calories you burn at rest while doing nothing more than sitting in a chair.
An accurate measure of RMR can help you eat the right amount of calories to reach your health goals. If you’re trying to lose fat, you might be inclined to starve yourself. However, this can be counter productive and trigger the body into famine response mode. When this happens, your body will do what it can to hold onto valuable life-saving fat at the expense of metabolism-boosting muscle.
If you’re training hard trying to pack on muscle, you might not be eating enough calories to meet your RMR and training needs. If this is the case, then you might not be meeting your RMR needs AND exercise calorie requirements. Running on empty whilst training very hard can lead to exhaustion and a loss of muscle.
Indirect calorimetry is a technique that measures how much oxygen your body consumes. Because there is a relationship between how much oxygen you consume and the number of calories burnt, we can accurately determine your metabolic rate.
Our equipment precisely measures the volume of air you breath out and the difference in concentration of oxygen in the inspired and expired air. We also account for factors such as temperature, pressure, and humidity in order to get the most accurate results possible.
A number of prediction formulas exist to estimate resting metabolic rate. These formulas are often used in gyms since indirect calorimetry may be impractical and require special training and expensive equipment. While prediction equations might be statistically valid across a large number of subjects in a scientific study, they may not necessarily be accurate when applied to an individual.
For example, if your estimated resting metabolic rate is 10% higher (2200 calories) than an actual measurement of 2000 calories, the extra 200 calories per day could translate to 9.5 kilograms of weight gain over one year.