Mediation of executive functions in the relationship between motor skills and psychosocial health in preschool children.

Purpose: Early motor skills develop alongside executive functions and psychosocial health. However, the interaction between these elements in early childhood is not well-studied. This study aimed to examine whether executive functions mediate the relationship between motor skills and psychosocial health. Methods: A total of 452 children (mean age = 6.14 ± 0.29 years, 48.9 % female) were included in this cross-sectional study. The Movement Assessment Battery for Children-Second Edition (MABC-2) was used to assess motor skills. Executive functions were measured using the Go/No-Go Test, Dimensional Change Card Sort Test, and List Sorting Working Memory Test from the Early Years Toolbox (ages 3-7). Social skills and problem behaviors were assessed using the preschool version of the Social Skills Improvement System Rating Scale (SSIS-RS). Structural equation modeling (SEM) with maximum likelihood estimation was employed to examine the mediating role of executive functions. Results: Gross motor skills were positively associated with inhibition (β = 0.41, p < 0.01), shifting (β = 0.20, p < 0.01), working memory (β = 0.30, p < 0.01), social skills (β = 0.50, p < 0.05), and negatively associated with problem behaviors (β = -0.23, p < 0.05). Inhibition (β = 0.107, p < 0.001) and shifting (β = -0.018, p < 0.05) mediated the relationship between gross motor skills and social skills. Additionally, inhibition (β = -0.086, p < 0.001) and shifting (β = 0.019, p < 0.05) mediated the relationship between gross motor skills and problem behaviors. Fine motor skills were positively associated with inhibition (β = 0.35, p < 0.01), shifting (β = 0.16, p < 0.01), and working memory (β = 0.21, p < 0.01), but not significantly related to social skills (β = 0.08, p > 0.05) or problem behaviors (β = 0, p > 0.05). Inhibition (β = 0.144, p = 0.001) mediated the relationship between fine motor skills and social skills, while both inhibition (β = -0.102, p = 0.001) and shifting (β = 0.014, p = 0.041) mediated the relationship between fine motor skills and problem behaviors. Conclusion: Executive functions significantly mediate the association between motor skills and psychosocial health in preschool children. Future experimental studies are required to examine causality in young children.