Mediating effects of body composition between physical activity and body esteem in Hong Kong adolescents: a structural equation modeling approach

被引：0
作者：
Kwok-Kei Mak
Ester Cerin
Alison M. McManus
Ching-Man Lai
Jeffrey R. Day
Sai-Yin Ho
机构：
[1] University of Hong Kong,Department of Community Medicine and School Public Health, Faculty of Medicine
[2] University of Hong Kong,Institute of Human Performance
[3] Deakin University,School of Exercise and Nutrition Sciences
[4] University of British Columbia,School of Health and Exercise Sciences
[5] Chinese University of Hong Kong,Department of Psychology
[6] University of Hong Kong,Faculty of Education
来源：
European Journal of Pediatrics | 2016年 / 175卷
关键词：
Body mass index; Physical activity; Body esteem; Adolescents;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This study investigated the mediating role of body mass index (BMI) in the relationship between physical activity and body esteem in adolescents. Nine hundred and five Hong Kong Chinese students aged 12–18 years participated in a cross-sectional study in 2007. Students’ BMI was computed as an indicator of their body composition. Their physical activity level and body esteem were examined using the Physical Activity Rating for Children and Youth (PARCY) and Body Esteem Scale (BES), respectively. Structural equation modelling was used to investigate the mediating effects of BMI and physical activity in predicting body esteem, with stratification by sex. The overall fit of the hypothesized models was satisfactory in boys (NFI = 0.94; NNFI = 0.88; CFI = 0.95; RMSEA = 0.07) and girls (NFI = 0.89; NNFI = 0.77; CFI = 0.91; RMSEA = 0.11). When BMI was considered as a mediator, higher physical activity had a significant negative total effect on body esteem in boys, but not in girls. The indirect effect of higher physical activity on body esteem via BMI was positive in boys, but negative in girls.
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页码：31 / 37
页数：6
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