Associations of structured and unstructured physical activity time in kindergarten with physical fitness in preschoolers: an isotemporal substitution and time threshold analysis
This cross-sectional study aimed to examine how reallocating time across different types of activities is associated with preschoolers’ physical fitness and to identify potential time thresholds that could inform kindergarten activity planning. A total of 337 Chinese preschoolers (168 boys, 169 girls; mean age 4.41 ± 0...
Delong CHEN, Bin Long, Guanggao Zhao et al.
· Humanities and Social Scienc... · 0 citations