Identifying patterns of physical activity and screen time parenting practices and associations with preschool children's physical activity and adiposity.

Although physical activity and screen time parenting practices influence children's behaviors, little work has examined how these practices work in combination. The purpose of this study was to identify patterns of physical activity and screen time parenting practices, and examine differences in preschool children's physical activity, sedentary behavior, and adiposity among the identified patterns. Data were collected in 2009-2012 from 319 parent-child dyads enrolled in a randomized trial testing a parent-focused obesity prevention intervention. At baseline, physical activity and screen time parenting practices were assessed using a validated self-report survey. Children's physical activity and sedentary behavior were measured using accelerometers and child anthropometrics were objectively measured. Latent profile analyses identified patterns of physical activity and screen time parenting practices. Differences in child outcomes were tested among the identified classes. Three parent classes were identified: Rewarders ( = 165), Activity Supportive ( = 98), and Screen Time Permissive ( = 56). Rewarder parents were characterized by the highest scores on using physical activity and screen time to reward or control children's behavior. Activity Supportive parents generally had the highest scores on practices to promote physical activity, while Screen Time Permissive parents had the highest scores on practices facilitating screen time. There were no differences in the mean child physical activity, sedentary behavior or BMI z-score among the three classes. Findings revealed distinct classes of parents that could provide modifiable targets for family-based physical activity promotion, but more work is needed examining the influence of these patterns longitudinally and in different populations.