Behavioral Self-Regulation and Weight-Related Behaviors in Inner-City Adolescents: A Model of Direct and Indirect Effects.
Behavioral Self-Regulation and Weight-Related Behaviors in Inner-City Adolescents: A Model of Direct and Indirect Effects.
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DOI：
10.1089/chi.2011.0011
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发表时间：
2011-08-01
期刊：
影响因子：
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通讯作者：
Wills TA
中科院分区：
文献类型：
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作者：
Isasi CR;Wills TA
本研究探讨了两种不同的自我调节结构，努力控制和失调，与青少年体重相关的行为，并测试这些影响是否是由自我效能变量介导的。对来自纽约布朗克斯11所公立学校的1771名青少年进行了一项以学校为基础的调查。自我调节是由多个指标进行评估，并定义为两个潜在的结构。因变量包括水果/蔬菜摄入量、零食/垃圾食品摄入量、体育活动频率和久坐行为时间。结构方程模型研究了努力控制和失调的生活方式行为的关系，自我效能变量作为可能的中介。研究结果表明，努力控制对水果和蔬菜的摄入有积极的间接影响，自我效能感介导，以及直接影响。努力控制也有积极的间接影响身体活动，自我效能介导。失调对垃圾食品/零食的摄入和久坐行为的时间有直接影响。这些研究结果表明，自我调节的特点与饮食和体力活动，其中一些影响是由自我效能介导的。不同的影响，注意到两个领域的自我调节。预防研究人员应该考虑在改善青少年健康行为的计划中包括自我调节过程。
This study examined the association of two distinct self-regulation constructs, effortful control and dysregulation, with weight-related behaviors in adolescents and tested whether these effects were mediated by self-efficacy variables. A school-based survey was conducted with 1771 adolescents from 11 public schools in the Bronx, New York. Self-regulation was assessed by multiple indicators and defined as two latent constructs. Dependent variables included fruit/vegetable intake, intake of snack/junk food, frequency of physical activity, and time spent in sedentary behaviors. Structural equation modeling examined the relation of effortful control and dysregulation to lifestyle behaviors, with self-efficacy variables as possible mediators. Study results showed that effortful control had a positive indirect effect on fruit and vegetable intake, mediated by self-efficacy, as well as a direct effect. Effortful control also had a positive indirect effect on physical activity, mediated by self-efficacy. Dysregulation had direct effects on intake of junk food/snacks and time spent in sedentary behaviors. These findings indicate that self-regulation characteristics are related to diet and physical activity and that some of these effects are mediated by self-efficacy. Different effects were noted for the two domains of self-regulation. Prevention researchers should consider including self-regulation processes in programs to improve health behaviors in adolescents.