Impact of a Behavioral-Based Intervention on Inspiratory Muscle Training Prescription by a Multidisciplinary Team
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INTRODUCTION: Our goal was to compare behavioral- and information-based interventions aimed at increasing prescription of inspiratory muscle training (IMT) for people with chronic obstructive pulmonary disease (COPD) by interdisciplinary teams during pulmonary rehabilitation (PR). METHODS: Six hospital PR programs were randomly assigned to a behavioral- or information-based intervention. Both interventions provided evidence supporting IMT and its prescription details. However, the behavioral-based intervention focused on barriers and challenges to IMT prescription informed by a nationwide survey and the theory of planned behavior (TPB). It included hands-on practice and content, in part, was driven by learners' questions. In contrast, the information-based intervention delivered information in a typical didactic education session followed by a demonstration and question period. It was supplemented with evidence-based research articles. The primary outcome was the change in prescription rate of IMT for COPD patients by determining the difference during the 6 months preceding compared to the 6 months during the interventions. RESULTS: Sixty-one health professionals and 488 COPD outpatients within 6 PR programs participated. No COPD patients were prescribed IMT at any of the sites during the 6-month preintervention phase. The behavioral-based intervention resulted in an IMT prescription rate of 10.2% to people with COPD, whereas the information-based intervention resulted in no IMT prescriptions. DISCUSSION: A behavioral-based intervention that is based on TPB and addresses challenges identified by health professionals is more effective than a traditional lecture approach to increase health professionals' prescription of IMT for patients with COPD.
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