Process evaluation of an exercise counseling intervention using motivational interviewing

Aim: To describe the results of the process evaluation of an exercise counseling intervention using motivational interviewing (MI). Background: Exercise can safely be incorporated into heart failure self-care, but many lack access to cardiac rehabilitation. One alternative is to provide exercise counseling in the clinical setting. Methods: This process evaluation was conducted according to previously established guidelines for health promotion programs. This includes an assessment of recruitment and retention, implementation, and reach. Results: Desired number of subjects were recruited, but 25% dropped out during study. Good fidelity to the intervention was achieved; the use of MI was evaluated with improvement in adherence over time. Dose included initial session plus 12 weekly phone calls. Subjects varied in participation of daily diary usage. Setting was conducive to recruitment and data collection. Conclusions: Evaluating the process of an intervention provides valuable feedback on content, delivery and fidelity.