Why the study?
Does repeat performance of 6-minute walk tests in patients with chronic heart failure relate to between-test interval or baseline performance?
Population
88 participants with stable chronic heart failure entering into heart failure rehabilitation programmes…
Comparison
Second 6-minute walk test performed with… vs First 6-minute walk test.
Design
Cohort, Randomly allocated inter-test intervals between 15 and 90 minutes.
Follow-up
15 to 90 minutes
Authors
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Repeat 6MWT gains limited to higher baseline performers; leaves open optimal protocols in stable CHF.
Does repeat performance of 6-minute walk tests in patients with chronic heart failure relate to between-test interval or baseline performance?
A repeat 6-minute walk test in stable CHF patients yields a small but significant increase in distance, primarily driven by patients with better baseline performance, suggesting repeat testing may not be necessary for those with poor baseline capacity.
Adsett et al. (2011) studied this question.
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