An Intervention to Improve Motor Skills in Young Children

The goal of "PLAY" is to adapt and test a developmentally appropriate intervention delivered on a mobile app to parents, with the goal of teaching fundamental motor skill (FMS) proficiency to their preschool-aged children (ages 3 to 5 y). Seventy-two children (3 to 5 y of age) were randomized. Of these children, 36 parents were randomized to use the FMS app and 36 were randomized to use a version of the app that promotes unstructured PA as a comparator group. Parents in the FMS condition accessed instructional lessons, peer modeling videos, and activity breaks to deliver 720 minutes of targeted, structured FMS instruction time to their child over a 12-week period. Parents in the comparator arm used a version of the app that provides instructional lessons to promote the equivalent amount of unstructured PA for their child. Parents were asked to guide the intervention, as parental support, modeling, and co-participation predict children's engagement in PA.