Using Intervention Mapping to develop a decision support system-based smartphone app to support self-management of non-specific low back pain (SELFBACK) (Preprint)
BACKGROUND International guidelines consistently endorse 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 to support 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 description and documentation of the intervention is lacking. Structured Intervention Mapping (IM) constitutes a six-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 non-specific LBP to reduce pain-related disability. METHODS Five steps of the IM process were systematically applied: the core processes included literature reviews, brainstorming and group discussions, and inclusion of stakeholders and representatives of the target population. Throughout a period of more than two years, the intervention content and technical features of delivery were created, tested and revised through user tests, feasibility studies and a pilot study. RESULTS One behavioural outcome was identified as the proxy for reaching the overall programme goal; increased use of evidence-based self-management strategies. Physical exercises, education and physical activity were the main components of the self-management intervention, designed and produced to be delivered via a smartphone app. All intervention content was theoretically underpinned by behaviour change theory and Normalization Process Theory. CONCLUSIONS We describe a detailed example of the application of the IM approach to the development of a theory-driven, complex, and digital intervention designed to support self-management of LBP. This description provides transparency of the developmental process of the intervention and a possible blue-print for designing and creating future digital health interventions for self-management.