The Goldilocks day for preschoolers' health outcomes: A compositional data analysis of 24-H movement behaviors on weekdays and weekends
Year: 2025
Type: article
Study design: Observational Study
Abstract: Objective: Preschool children's activity patterns differ between weekdays and weekends. Weekdays are constrained by structured educational activities and parental commitments, which limit flexibility, while weekends provide opportunities for extra sleep (SLP), physical activity (PA), and reduced sedentary behavior (SB). This study aims to estimate optimal activity durations for both weekdays and weekends, based on the development of executive function (EF), fundamental movement skills (FMS), and physical fitness (PF) in preschool children. Methods: A total of 289 preschool children aged 3-6 years from four kindergartens in Zhejiang Province participated. PA and SLP were objectively measured using accelerometers and the Children's Sleep Quality Questionnaire. EF, which includes working memory, inhibitory control, and cognitive flexibility, was measured using the Early Years Toolbox (EYT). FMS were assessed using the test of gross motor development-3rd edition (TGMD-3), and PF was evaluated according to the National Physical Fitness Measurement Manual (Preschool Children Section). Compositional data regression models were applied to examine the relationship between 24-h movement behaviors and health outcomes on weekdays and weekends. Optimal time-use compositions for each outcome were estimated, and 3D quaternary plots were generated to define the Goldilocks Day at the center of the overlapping regions. Results: ). Differences in optimal time-use between weekdays and weekends were observed. For weekdays, the optimal daily durations were: moderate-to-vigorous physical activity (MVPA) 106 (70-140) min, light physical activity (LPA) 40 (30-50) min, SB 703 (600-800) min, and SLP 591 (470-700) min. For weekends, the optimal daily durations were: MVPA 115 (80-150) min, LPA 45 (40-50) min, SB 668 (570-760) min, and SLP 611 (530-690) min. Conclusion: This study provides recommendations for time allocation on weekdays and weekends to support the healthy development of preschool children.
Authors: Xinyu Wang, Xu Zhang, Jane Jie Yu, Weizhen Gao, Miaomiao Wan, Xu Wen
Institution: Zhejiang University
Language: English
Topic: Physical Activity and Health
Subfield: Physiology
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $1,150
Award: G138018891
OpenAlex ID: W4416400118