The program establishes 5 weight intervals with the same width, from the minimum and maximum values of the loads entered into the "Loads" tab of this module. For example, if the minimum weight is 3 kg and the maximum is 28 kg, the 5 weight intervals that the application will establish are 3-8 kg 8-13 kg, 13-18 kg, 18-23 kg and 23-28 kg.