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Just-in-Time Prompts for Running, Walking, and Performing Strength Exercises in the Built Environment: 4-Week

Karlijn Sporrel¹, Shihan Wang^2,3, Dick D F Ettema¹

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Summary

This summary is machine-generated.

The Playful Active Urban Living (PAUL) app shows promise for increasing physical activity (PA) motivation, particularly with its strength exercise prompts. However, technical issues need addressing for widespread feasibility.

Keywords:

Fogg Behavior Model context-based engagement exercise application feasibility study just-in-time interventions mHealth mobile health mobile phone physical activity prompts reminders user experience

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Area of Science:

Mobile Health (mHealth)
Behavioral Science
Exercise Physiology

Background:

App-based interventions leverage the Fogg Behavior Model for physical activity (PA) promotion.
Just-in-time (JIT) prompts are crucial for timely behavioral persuasion.
The Playful Active Urban Living (PAUL) app integrates JIT adaptive reminders and strength exercise prompts.

Purpose of the Study:

Evaluate the user experience and engagement with the PAUL app and its JIT prompts.
Assess changes in participants' physical activity behavior, intrinsic motivation, and perceived capability.
Explore user perceptions and opinions on the PAUL app's functionalities and feasibility.

Main Methods:

A closed-beta version of the PAUL app was tested in two variants: Basic PAUL and Smart PAUL.
23 participants were randomized, receiving either basic or adaptive JIT prompts.
Physical activity, motivation, and perceived capability were measured pre- and post-intervention, supplemented by questionnaires and interviews.

Main Results:

No significant changes in overall physical activity behavior were observed.
Intrinsic motivation for running, walking, and strength exercises significantly increased.
Participants reported high enthusiasm for strength exercise prompts, perceiving them as personal and relevant, but noted timing issues with reminder messages.

Conclusions:

The PAUL app demonstrates potential as an innovative intervention for promoting physical activity.
Strength exercise prompts are viewed as a valuable feature by users.
App stability is critical for the feasibility of mHealth interventions like PAUL.