Cheng Luanna Alexandra, Mendonça Gerfeson, Farias Júnior José Cazuza de
Post-graduation Program in Physical Education, Universidade Federal da Paraíba, João Pessoa, PB, Brazil; Study and Research Group in Epidemiology of Physical Activity, Universidade de São Paulo, São Paulo, SP, Brazil.
Study and Research Group in Epidemiology of Physical Activity, Universidade de São Paulo, São Paulo, SP, Brazil; Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil; Universidade Federal da Paraíba, João Pessoa, PB, Brazil.
J Pediatr (Rio J). 2014 Jan-Feb;90(1):35-41. doi: 10.1016/j.jped.2013.05.006. Epub 2013 Oct 22.
To analyze the association between physical activity and social support from parents and friends on the physical activity level among adolescents.
Data from 2,361 adolescents (56.6% females; mean age 16.4; SD = 1.2), from public and private high schools were analyzed. The physical activity level of the adolescents, parents, and friends were measured through a questionnaire. Parents' and friends' support and self-efficacy were measured using two previously tested scales. Data analysis was performed using the structural equation modeling in IBM® SPSS® Amos™ 20.0.
Physical activity of friends was directly associated with physical activity level of adolescents. Physical activity of the father was associated with that of their sons, and the physical activity of mother was associated with that of their daughters. An indirect association was identified between the physical activity of parents and friends with physical activity level of the adolescents, mediated by social support. Social support was directly associated with physical activity in adolescents of both genders and indirectly mediated by self-efficacy.
Parents and friends have a social influence on adolescents' level of physical activity through the mechanism of behavior modeling or through social support, mediated by self-efficacy.
分析青少年的身体活动水平与来自父母及朋友的社会支持之间的关联。
对来自公立和私立高中的2361名青少年（56.6%为女性；平均年龄16.4岁；标准差=1.2）的数据进行分析。通过问卷调查来测量青少年、父母及朋友的身体活动水平。使用两个先前经过测试的量表来测量父母及朋友的支持和自我效能感。使用IBM® SPSS® Amos™ 20.0中的结构方程模型进行数据分析。
朋友的身体活动与青少年的身体活动水平直接相关。父亲的身体活动与儿子的相关，母亲的身体活动与女儿的相关。父母和朋友的身体活动与青少年的身体活动水平之间存在间接关联，由社会支持介导。社会支持与两性青少年的身体活动直接相关，并由自我效能感间接介导。
父母和朋友通过行为示范机制或通过由自我效能感介导的社会支持，对青少年的身体活动水平产生社会影响。
