PLAY: An Intervention to Improve Motor Skills in Young Children

Preschoolers spend 4 hours/day in front of a screen, while fewer than one-quarter engage in the recommended two hours of daily physical activity (PA). The decline in PA, increase in screen-based behaviors, and onset of obesity during preschool years have been linked to lifetime risk of obesity and related comorbidities. However, emerging evidence indicates that "screen time" can actually be leveraged as a tool to increase children's PA and promote healthy weight. Specifically, PA interventions delivered over digital devices can provide real-time encouragement for children to be physically active. Prior interventions delivered over mobile devices were effective in increasing PA levels, including our own P-Mobile study that provided behavioral strategies to parents of children aged 6 to 10 years.

When considering how to support and motivate parents whose children are preschool-aged, teaching and modeling fundamental motor skills (FMS) are critical to enable children's PA. FMS like running, jumping, or throwing a ball, are basic, goal-directed movement patterns developed in early childhood that provide a foundation for children to be physically active and competent movers. These skills enable a child to function independently in their surrounding environment, engage with peers, and contribute to their ability to be physically active. Evidence has shown that children must establish a minimal level of FMS proficiency to continue participating in PA opportunities as they age. FMS and PA behaviors have a dynamic and reciprocal relationship. Children with higher levels of FMS are more physically active both during childhood and into adolescence. Therefore, a PA intervention for preschoolers should focus on developing FMS competence.