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Published on: November 23, 2019
Reliability, minimal detectable changes, practice effects and correlates of the 6-min walk test in patients with
Davy Vancampfort1, Michel Probst, Kim Sweers
1University Psychiatric Center, Catholic University Leuven, Campus Kortenberg, Kortenberg, Belgium. Davy.Vancampfort@uc-kortenberg.be
Abstract:
We examined the reproducibility of the 6-min walk test (6 MWT) in patients with schizophrenia. Secondary aims were to assess minimal detectable changes and practice effects of the 6 MWT and the presence of clinical conditions that might interfere. From 71 patients with schizophrenia two trials of the 6 MWT, administered within 3 days, were analysed. The intraclass correlation coefficient between the two tests was 0.96. The minimal detectable change was 56.2m for men and 50.2m for women. Body mass index, daily antipsychotic dose, negative and depressive symptoms, resting heart rate, age, smoking behavior and different musculoskeletal complaints were all significantly associated with the distance walked. The 6 MWT can be recommended for evaluating the functional exercise capacity in patients with schizophrenia. Some practice effect could however not be excluded.
