Confirming a beneficial effect of the six-minute walk test on exercise confidence in patients with heart failure.

Abstract

Low confidence to exercise is a barrier to engaging in exercise in heart failure patients. Participating in low to moderate intensity exercise, such as the six-minute walk test, may increase exercise confidence. To compare the effects of a six-minute walk test with an educational control condition on exercise confidence in heart failure patients. This was a prospective, quasi-experimental design whereby consecutive adult patients attending an out-patient heart failure clinic completed the Exercise Confidence Scale prior to and following involvement in the six-minute walk test or an educational control condition. Using a matched pairs, mixed model design (n=60; 87% male; Mage=58.87±13.16), we identified a significantly greater improvement in Total exercise confidence (F(1,54)=4.63, p=0.036, partial η2=0.079) and Running confidence (F(1,57)=4.21, p=0. 045, partial η2=0.069) following the six-minute walk test compared to the educational control condition. These benefits were also observed after adjustment for age, gender, functional class and depression. Heart failure patients who completed a six-minute walk test reported greater improvement in exercise confidence than those who read an educational booklet for 10 min. The findings suggest that the six-minute walk test may be used as a clinical tool to improve exercise confidence. Future research should test these results under randomized conditions and examine whether improvements in exercise confidence translate to greater engagement in exercise behavior.