Resting & basal metabolic rate measurement

The basal metabolic rate is an important individual value used to determine the daily energy expenditure and calorie consumption. It is influenced by muscle mass and body weight, as well as age, sex, genetic factors and lifestyle. The data determined with the measurement of the basal metabolic rate reflect the daily energy needs at rest and is the basis to individualised diet and exercise recommendations.

 

The resting metabolic rate, also called basal metabolic rate, is the amount of energy that the body requires per day at complete rest, at neutral temperature (28°C) and with an empty stomach, to maintain its functions. In addition to this basal metabolic rate, we need energy to eat and digest, as well as for professional and leisure activities.

The calculation to measure the daily energy requirements via common formulas or with bio-impedance measurements are unprecise. The problem with calculation is that either the body composition (muscles use more energy than fat) or your current nutritional status (diet, muscle building, etc.) is not taken into account. Thus, reducing body weight might be difficult with a slow metabolism, and the other way around, a high basic metabolic rate can facilitate an increase in muscle mass.

 

Therefore, the direct measurement of basal metabolic rate via a spirometer test can deliver important information for diet and training.

 

The basal metabolic rate gives us insight on:

  • The daily requirement (minimum) in kilocalorie

  • The metabolic rate at rest

  • The fat metabolic rate

  • The fat to carbohydrate consumption rate at rest

 

The basal metabolic rate will be conducted in the morning with an empty stomach or after at least 4 hours of fasting. No exhausting physical activity or sport training should take place the day prior to the measurement. The car or public transportation should be used to come to the test, in order to avoid any physical exertion.

The basal metabolic rate measurement occurs in a laying position during 10-15 minutes. Altogether, you will need approximately 30-45 minutes.

 

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