Published on in Vol 7, No 9 (2019): September
![The Association Among Social Support, Self-Efficacy, Use of Mobile Apps, and Physical Activity: Structural Equation Models With Mediating Effects The Association Among Social Support, Self-Efficacy, Use of Mobile Apps, and Physical Activity: Structural Equation Models With Mediating Effects](https://asset.jmir.pub/assets/e4b5bb61d85ce9b701ca164ca5d8ddb4.png 480w,https://asset.jmir.pub/assets/e4b5bb61d85ce9b701ca164ca5d8ddb4.png 960w,https://asset.jmir.pub/assets/e4b5bb61d85ce9b701ca164ca5d8ddb4.png 1920w,https://asset.jmir.pub/assets/e4b5bb61d85ce9b701ca164ca5d8ddb4.png 2500w)
1 Department of Social Medicine and Health Education, School of Public Health, Peking University, Beijing, China
2 Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, China
3 Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
4 School of Journalism and Communication, Peking University, Beijing, China
5 Global health center office of Beijing Research Center for preventive medicine, Beijing Center for Disease Control and prevention, Beijing Center for Disease Control and prevention, Beijing, China
*these authors contributed equally