Archive

The study was performed from 2003 to 2004, in Södermanland County, Sweden; Kenneth Eliasson, Eva Denison. Three standardized six-minute walking tests performed during the same day in patients with chronic obstructive pulmonary disease. In abstract book for Physical Therapy Day 26-28 oktober 2005. p. 16. Stockholm, Sweden. Swedish Association of Registered Physical Therapists.

The instructions to the subjects were standardized and played on a CD-player, and the purpose was to minimize the learning effect (error sources) at communication.

About 10 years later. Writes Rainer Gloeckl, Fabio Pitta and Blagoi Marinov in the European Respiratory Review, June 2013, Practical recommendations for exercise training in patients with COPD:

A rigorous standardisation of the test procedure, especially concerning the verbal communication before and during the test, is very important to minimise a potential bias by the tester.