Background/Objectives: The characterization of varying levels of parental engagement is important for increasing understanding of how to tailor and maximize the effectiveness of parent-based eHealth interventions. In this study, we aimed to determine if parental engagement in the WeChat group of a parent-based eHealth intervention affected preschoolers’ physical activity, diet, or sleep. Methods: We utilized baseline, post-test (12 weeks after baseline), and follow-up (12 weeks after post-test measurement) data from the intervention group in a parent-based eHealth intervention concerning children aged from three to six years, designed as a single-blinded randomized controlled trial with two parallel arms to explore the intervention’s influence on preschoolers’ physical activity, diet, and sleep. The parents in the intervention group were categorized into two groups: (1) The actively engaged group (53 parent–child dyads), defined as parents who actively posted and commented on modules at least once a week, either in the WeChat groups or through private messages with the researchers. (2) The lurker group (67 parent–child dyads), defined as parents who only responded to the weekly self-assessment messages and who, aside from this, showed no interaction within WeChat groups and did not privately message the researchers. Preschoolers’ physical activity was measured using ActiGraph wGT3X-BT, while their dietary behaviors and sleep were measured using parent-reported questionnaires. Generalized Estimating Equations using group and time as main effects and adjusted demographic information for covariates were computed to examine the effects of parental engagement in the eHealth intervention on preschoolers’ physical activity, diet, and sleep. Results: At post-test, higher levels of parental engagement were significantly associated with a marked increase in preschoolers’ moderate-to-vigorous and vigorous physical activity, alongside a notable reduction in weekend screen time. Furthermore, active parental engagement was linked to greater decreases in satiety responsiveness, desire to drink, and food fussiness compared to the ‘lurker’ group. However, no significant associations were observed between the level of parental engagement and preschoolers’ sleep-related outcomes. Conclusions: Further research with larger sample sizes and longer durations is needed to better investigate the potential of social media in parent-based interventions for promoting healthy lifestyles in children.
Zhou et al. (Tue,) studied this question.