Interactive augmented reality using Scratch 2.0 to improve physical activities for children with developmental disabilities

• This project used a low-cost body motion interactive game.
• The webcam was able to support the body motion interface tool on assistive technology devices.
• The results revealed a statistically significant positive effect via augmented reality on physical activities between the baseline and the intervention.

This study uses a body motion interactive game developed in Scratch 2.0 to enhance the body strength of children with disabilities. Scratch 2.0, using an augmented-reality function on a program platform, creates real world and virtual reality displays at the same time. This study uses a webcam integration that tracks movements and allows participants to interact physically with the project, to enhance the motivation of children with developmental disabilities to perform physical activities. This study follows a single-case research using an ABAB structure, in which A is the baseline and B is the intervention. The experimental period was 2 months. The experimental results demonstrated that the scores for 3 children with developmental disabilities increased considerably during the intervention phrases. The developmental applications of these results are also discussed.