Abstract：Objective To investigate the correlations among screen time, outdoor activity time, and the physical health of preschoolers, so as to provide suggestions for formulating interventions to prevent myopia and obesity of children. Methods A cross-sectional study was carried out in Shenzhen city. A representative sample of 5 226 preschoolers and their caregivers were recruited by a proportional stratified cluster sampling. Data were collected by the Chinese early human capability index (CHeHCI), children's media use in daily family life questionnaire, and body mass index (BMI). Linear regression and binary Logistic regression models were used to analyze the effects of screen time and outdoor activity time on physical health of preschoolers. Results Preschoolers spent(110.30±90.67) min/d on screen and(61.11±41.16) min/d on outdoor activity. And 5.47% of preschoolers were overweight. Screen time negatively predicted preschoolers' physical health, while outdoor activity time positively predicted preschoolers' physical health of CHeHCI. There was no significant association between outdoor activity time and overweight of preschoolers. Conclusion This study suggests parents might need to reduce preschoolers' screen time and increase outdoor activity time to promote the physical health development of preschoolers.
李敏谊，崔雨芳，王诗棋，田梓彤，彭应刚. 屏幕时间、户外活动时间与学龄前儿童身体健康的相关性研究[J]. 教育生物学杂志, 2021, 9(2): 96-.
LI Minyi, CUI Yufang, WANG Shiqi, TIAN Zitong, PENG Yinggang. Correlations among screen time, outdoor activity time, and physical health of preschoolers. JOURNAL OF BIO-EDUCATION, 2021, 9(2): 96-.
