NCT06566131

Development and Evaluation of A Game-Based Mobile App for Increasing Physical Activity in Autistic Adults

Gamified Mobile Health for Physical Activity Promotion in Autistic Adults

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 70 (actual)
• Sponsor: University of Delaware · Academic / Other
• Sex: All
• Age: 18 Years – 55 Years
• Healthy volunteers: Accepted

Summary

The clinical study aims to develop and test a gamified mobile health app called PuzzleWalk (PW) to promote physical activity (PA) and reduce sedentary behavior (SB) in autistic adults, including those with mild intellectual disabilities (ID). The study addresses the need for tailored interventions in this population, who are at higher risk for lifestyle-related chronic health conditions due to lower PA and higher SB. The upgraded version of PuzzleWalk integrates behavior change techniques and gamification strategies, such as translating step counts into puzzle game playtime, to encourage regular PA and reduce SB. The study will evaluate the app's effectiveness on preventive health behavior changes in real-world settings. The ultimate goal is to create an effective, sustainable, and scientifically validated mobile health tool to improve the health and well-being of autistic adults.

Detailed description

The specific aim of this study is to evaluate the feasibility and acceptability of the upgraded PW in increasing PA and reducing SB in autistic adults with and without mild ID. For this field deployment study, we will employ a pre-/post-test design to examine any changes in participants' objective levels of PA and sedentary time before, during, and after the 6-week intervention. The working hypothesis is that the 6-week PW intervention will yield significant increases in accelerometer-measured daily step counts and moderate-to-vigorous PA (MVPA) (up to 5% increases from baseline) and decreases in sedentary time (up to 10% decreases from baseline). High levels of user engagement with PW app during the intervention period will be significantly associated with sustained positive behavior changes in daily step counts, MVPA, and sedentary time among participants. We will conduct screening interviews with an emphasis on history of diagnosis and level of intellectual functioning to verify the eligibility of prospective participants. After they consent to participate in the study, we will provide them with study materials, including an accelerometer (i.e., wristwatch), a cable charger, and study instruction sheets, via shipping or in-person meetings. Prior to baseline data collection, we will use a rubric to assess participant comfort and knowledge of study procedures. After an initial 2-3-day accelerometer familiarization period, we will start the data collection, including demographics, technology and medication use, and accelerometer-derived PA and sedentary time. From week 3, participants will start to freely use the upgraded PW app after receiving visualized step-by-step user instructions and will continue to use the app until the end of week 8 (total 6-week intervention), supported by periodic reminders and reinforcement messages based on Behavior Change Techniques. PA and sedentary time measures will be collected during four time periods: Week 1 (baseline), Week 3 (intervention start), Week 5 (mid-intervention), and Week 8 (intervention end).

Conditions

• Autism Spectrum Disorder

Interventions

Type	Name	Description
BEHAVIORAL	Gamified mobile health app	Participants will receive visualized instructions about the PW use (e.g., search and download the app on App Store, navigate and understand key features, play puzzle games, and track step counts). During the 6-week intervention period, participants will receive reminders on wearing the accelerometer, using the app for potential incentives, and engaging in regular physical activities for health promotion.

Timeline

• Start date: 2024-08-29
• Primary completion: 2025-07-02
• Completion: 2025-07-02
• First posted: 2024-08-22
• Last updated: 2025-07-30

Locations

1 site across 1 country: United States