The Instrumented Six Minute Walk Test can be performed in the same way as a the non-instrumented version. The instrumented Six Minute Walk Test is performed on a straight walking trajectory with a length between 10 and 50 meters. At both ends of this trajectory the subject turns 180 degrees and continues walking in the opposite direction towards the turning point at the other end of the trajectory. The objective is to cover as much distance as possible within 6 minutes. The use of a walking aid and intermittent resting during the Instrumented Six Minute Walk Test are allowed.