In the gym cardio is done primarily for body fat reduction. In order to waste no time, everyone wants to burn as many calories as possible  in a short time. An accurate estimation is not possible because there are many factors that influence the consumption of calories. For example, the body weight and individual metabolism. What is metabolism? In our cells nutrients and oxygen are converted to life energy, which is known as metabolism. We can produce energy from food or from previously stored body fat. Every second of life is only possible because of a metabolic processes. During the transition residues occur, which are excreted through respiration, among other things. How effective is the metabolism depends on what and how much the body excretes our waste material. This is comparable with the emissions test in a car. If the engine is properly adjusted we are happy, as the energy (fuel) is burned perfectly, and there are only a few gases. The car has full power and low fuel consumption. Moreover, this also increases the battery life (life) of the engine. Do you have three or 168 hours a week to burn fat? The better your metabolism is set, the more fat is burned during the rest period. The resting phase is longer and decides on the success of a weight reduction. The solution is a metabolic measurement. The metabolic measurement is simple.  You breathe through a special mouthpiece about three to five minutes off and on. You sit or lie quietly and relax. A meter measures the air you breathe and passes the data to a specially developed software. Immediately after the measurements it provides a graphical analysis of your metabolism. Your adviser will explain to you the following results more accurate.