%0 Journal Article %@ 1438-8871 %I JMIR Publications %V 24 %N 1 %P e26555 %T Using Intervention Mapping to Develop a Decision Support System–Based Smartphone App (selfBACK) to Support Self-management of Nonspecific Low Back Pain: Development and Usability Study %A Svendsen,Malene Jagd %A Sandal,Louise Fleng %A Kjær,Per %A Nicholl,Barbara I %A Cooper,Kay %A Mair,Frances %A Hartvigsen,Jan %A Stochkendahl,Mette Jensen %A Søgaard,Karen %A Mork,Paul Jarle %A Rasmussen,Charlotte %+ The National Research Centre for the Working Environment, Lersø Parkallé 105, Copenhagen, 2100, Denmark, 45 20259734, mas@nfa.dk %K intervention mapping %K behavior change %K low back pain %K self-management %K mHealth %K app-based intervention %K decision support system %K digital health intervention %K mobile phone %D 2022 %7 24.1.2022 %9 Original Paper %J J Med Internet Res %G English %X Background: International guidelines consistently endorse the promotion of self-management for people with low back pain (LBP); however, implementation of these guidelines remains a challenge. Digital health interventions, such as those that can be provided by smartphone apps, have been proposed as a promising mode of supporting self-management in people with chronic conditions, including LBP. However, the evidence base for digital health interventions to support self-management of LBP is weak, and detailed descriptions and documentation of the interventions are lacking. Structured intervention mapping (IM) constitutes a 6-step process that can be used to guide the development of complex interventions. Objective: The aim of this paper is to describe the IM process for designing and creating an app-based intervention designed to support self-management of nonspecific LBP to reduce pain-related disability. Methods: The first 5 steps of the IM process were systematically applied. The core processes included literature reviews, brainstorming and group discussions, and the inclusion of stakeholders and representatives from the target population. Over a period of >2 years, the intervention content and the technical features of delivery were created, tested, and revised through user tests, feasibility studies, and a pilot study. Results: A behavioral outcome was identified as a proxy for reaching the overall program goal, that is, increased use of evidence-based self-management strategies. Physical exercises, education, and physical activity were the main components of the self-management intervention and were designed and produced to be delivered via a smartphone app. All intervention content was theoretically underpinned by the behavior change theory and the normalization process theory. Conclusions: We describe a detailed example of the application of the IM approach for the development of a theory-driven, complex, and digital intervention designed to support self-management of LBP. This description provides transparency in the developmental process of the intervention and can be a possible blueprint for designing and creating future digital health interventions for self-management. %M 35072645 %R 10.2196/26555 %U https://www.jmir.org/2022/1/e26555 %U https://doi.org/10.2196/26555 %U http://www.ncbi.nlm.nih.gov/pubmed/35072645