Abstract:
Objective The researches on the influencing factors of adolescents' physical activity were summarized using the method of meta-analysis systematically from the perspective of Social Cognitive Theory (SCT).
Methods Literature review was conducted from different databases and 18 documents were introduced; meta-analysis and subgroup analysis were used by Stata 15.0.
Results ① SCT model can explain the behavior of physical activity to a moderate extent(R2=17%, P < 0.01, z=7.2);②The results of literature which included the factors of barrier self-efficacy, social support and social status showed that these factors correlated with physical activity significantly; ③There exists heterogeneity between studies influenced by different geographic, gender, and statistical methods.
Methods SCT model can predict physical activity of adolescents moderately; selfefficacy, barrier self-efficacy, social support, and social status are the key variables to predict physical activity; the predict of SCT model to adolescents'physical activity are different in terms of the region, gender and cultural environment of different countries.