The hall used to perform the 6MWT should have a comfortable temperature, and can be a closed or outdoor environment, since it is flat, and little traveled so there are no interruptions while walking by people who move there. Usually you use a corridor 30 meters long, with no obstacles where the time to make a turn must be marked with a cone. The test objective is to walk in itself alone pace as far as possible during the six minutes and guiding possible cardiorespiratory changes that may arise, being allowed to walk slowly, stop, relax when needed returning to walk when you feel able to resume the walk. You must walk without talking to the people who are around you to the cone and will back quickly around it so continuing to walk without hesitation. The path must be shown to the patient by the examiner and can start walking.