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Association between the 6-minute walk test and exercise confidence in patients with heart failure: A prospective
Francis J Ha1, Samia R Toukhsati2, James D Cameron3
1School of Clinical Sciences at Monash Health, Monash University, Melbourne, Australia; Department of Cardiology, Austin Hospital, Melbourne, Australia.
Background:
Exercise confidence predicts exercise adherence in heart failure (HF) patients. The association between simple tests of functional capacity on exercise confidence are not known.
Objectives:
To evaluate the association between a single 6-min walk test (6MWT) and exercise confidence in HF patients.
Methods:
Observational study enrolling HF outpatients who completed the Cardiac Depression Scale and an Exercise Confidence Survey at baseline and following the 6MWT. Paired t-test was used to compare repeated-measures data, while Repeated Measures Analysis of Covariance was used for multivariate analysis.
Results:
106 HF patients were enrolled in the study (males, 82%; mean age, 64 ± 12 years). Baseline Exercise Confidence was inversely associated with age (p < 0.01), NYHA class (p < 0.001), and depression (p < 0.001). The 6MWT was associated with an improvement in Exercise Confidence (F(1,92) = 5.0, p = 0.03) after adjustment for age, gender, HF duration, NYHA class and depression.
Conclusions:
The 6MWT is associated with improved exercise confidence in HF patients.
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