LAUSR

Background Children's physical activity (PA) is an important guarantee for children's physical and mental health. Influencing factors of children's PA in family is related to the healthy growth of children and the happy life of families. Methods This is a cross-sectional study of influencing factors of children's PA in family. Parents whose children in 15 kindergartens(i.e., children are aged from 3 to 6 years) were sampled. Results Government had a significant negative impact on parents’ perceived risks. Community has a significant positive effect on parents’ perceived benefits and a significant negative effect on parents’ perceived risks. Kindergarten has a significant positive effect on parents’ perceived benefits, but has no significant effect on the parents’ perceived risks. Children sports club has a significant positive effect on parents’ perceived benefits. Parents’ perceived benefits has a significant positive impact on children's PA in family, while perceived risks has a significant negative impact. Conclusion Government should play a leading role in the development of children's PA in family. Community provides supplementary support. Kindergarten is the key point of developing children's PA in family. Children sports club is the auxiliary force of children's PA in family.