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Development of a self-guided web-based intervention to promote physical activity using the multi-process action

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  • 1School of Exercise Science, Physical and Health Education, University of Victoria, Victoria, British Columbia, Canada.

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This study developed a web-based physical activity intervention using the Multi-Process Action Control (M-PAC) framework. The iterative development process ensured user needs were met, enhancing future physical activity promotion.

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Area of Science:

  • Behavioral Science
  • Health Informatics
  • Public Health

Background:

  • Physical activity promotion often relies on intention-formation theories, yet intentions alone are insufficient for behavior change.
  • The Multi-Process Action Control (M-PAC) framework integrates intention formation with behavior translation.
  • Existing web-based interventions lack a foundation in the M-PAC model.

Purpose of the Study:

  • To describe the development of a self-guided, web-based intervention for promoting physical activity in adults.
  • To apply the Multi-Process Action Control (M-PAC) framework in designing a digital health intervention.
  • To address the gap in M-PAC-based web interventions for physical activity.

Main Methods:

  • A three-phase development process: intervention planning, iterative intervention development, and pilot testing.
  • Designing a 10-week, self-guided web intervention based on the M-PAC framework.
  • Conducting usability and acceptability assessments during pilot testing.

Main Results:

  • Identified a need for web-based physical activity interventions and a lack of M-PAC-based options.
  • Developed a 10-week self-guided web intervention targeting 150 minutes of weekly moderate-to-vigorous physical activity.
  • Pilot testing provided crucial feedback on usability, content, and design.

Conclusions:

  • Developing interventions using the M-PAC model can improve effectiveness and reach of physical activity programs.
  • An iterative, multi-disciplinary approach is vital for designing user-centered web interventions.
  • Further research is required to evaluate the intervention's efficacy.