Parental influences on adolescent fruit consumption: the role of adolescent self-efficacy.
ABSTRACT The aims of this study were to examine whether adolescent self-efficacy mediates the associations between parental control, perceptions of the importance of healthy nutrition for child health and barriers to buying fruits and vegetables and adolescent fruit consumption using a theoretically derived explanatory model. Data were drawn from a community-based sample of 1606 adolescents in Years 7 and 9 of secondary school and their parents, from Victoria, Australia. Adolescents completed a web-based survey assessing their fruit consumption and self-efficacy for increasing fruit consumption. Parents completed a survey delivered via mail assessing parental control, perceptions and barriers to buying fruit and vegetables. Adolescent self-efficacy for increasing fruit consumption mediated the positive associations between parental control and perceptions of the importance of healthy nutrition for child health and adolescent fruit consumption. Furthermore, adolescent self-efficacy mediated the negative association between parental barriers to buying fruits and vegetables and adolescent fruit consumption. The importance of explicating the mechanisms through which parental factors influence adolescent fruit consumption not only relates to the advancement of scientific knowledge but also offers potential avenues for intervention. Future research should assess the effectiveness of methods to increase adolescent fruit consumption by focussing on both improving adolescents' dietary self-efficacy and on targeting parental control, perceptions and barriers.
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ABSTRACT: Studies on the impact of the 'obesogenic' environment have often used non-theoretical approaches. In this journal's debate and in other papers authors have argued the necessity of formulating conceptual models for differentiating the causal role of environmental influences on behavior. The present paper aims to contribute to the debate by presenting a dual-process view on the environment--behavior relationship. This view is conceptualized in the EnRG framework (Environmental Research framework for weight Gain prevention). In the framework, behavior is postulated to be the result of a simultaneous influence of conscious and unconscious processes. Environmental influences are hypothesized to influence behavior both indirectly and directly. The indirect causal mechanism reflects the mediating role of behavior-specific cognitions in the influence of the environment on behavior. A direct influence reflects the automatic, unconscious, influence of the environment on behavior. Specific personal and behavioral factors are postulated to moderate the causal path (i.e., inducing either the automatic or the cognitively mediated environment - behavior relation). In addition, the EnRG framework applies an energy balance-approach, stimulating the integrated study of determinants of diet and physical activity. The application of a dual-process view may guide research towards causal mechanisms linking specific environmental features with energy balance-related behaviors in distinct populations. The present paper is hoped to contribute to the evolution of a paradigm that may help to disentangle the role of 'obesogenic' environmental factors.International Journal of Behavioral Nutrition and Physical Activity 02/2006; 3:9. · 3.58 Impact Factor
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ABSTRACT: Restricting children's access to palatable foods may appeal to parents as a straightforward means of promoting moderate intakes of foods high in fat and sugar; however, restricting access to palatable foods may have unintended effects on children's eating. The efficacy of restricting children's access to palatable foods as a means of promoting patterns of moderate intake of those foods is unknown. Two experiments were conducted to test the hypothesis that restricting access to a palatable food enhances children's subsequent behavioral responses to, selection of, and intake of that restricted food. Both experiments used a within-subjects design to examine the effects of restricting access to a palatable food on children's subsequent behavior, food selection, and food intake. The first experiment examined the effects of restriction within and outside the restricted context and the second experiment focused on the effects within the restricted context. In both experiments, restricting access to a palatable food increased children's behavioral response to that food. Experiment 2 showed that restricting access increased children's subsequent selection and intake of that food within the restricted context. Restricting access focuses children's attention on restricted foods, while increasing their desire to obtain and consume those foods. Restricting children's access to palatable foods is not an effective means of promoting moderate intake of palatable foods and may encourage the intake of foods that should be limited in the diet.American Journal of Clinical Nutrition 07/1999; 69(6):1264-72. · 6.50 Impact Factor
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ABSTRACT: To examine whether (1) student perceptions of parent behaviors explain variations in fruit and vegetable consumption, (2) self-efficacy mediates this relationship, and (3) perceived home fruit and vegetable availability moderates this relationship. A cross-sectional survey. Classrooms in 3 middle schools in 2 northeast Georgia counties. 366 middle school students. The response and participation rates were 59% and 56%, respectively. Perceived authoritative parenting, perceived parent control, perceived parent modeling, perceived parent support, self-efficacy, perceived fruit and vegetable availability, and fruit and vegetable consumption. Hierarchical multiple regression; P <.05. Perceived parent modeling, perceived parent support, self-efficacy, and perceived fruit and vegetable availability were significant predictors of fruit and vegetable consumption. The relationship between perceived parent support and fruit and vegetable consumption was mediated by self-efficacy. The relationship between fruit and vegetable consumption and both perceived parent modeling and support was moderated by perceived fruit and vegetable availability. Parents appear to moderately influence middle school student fruit and vegetable consumption. Educators might focus on improving home fruit and vegetable availability and student self-efficacy, as well as parent support and modeling. The level of availability might indicate where efforts should focus for enhancing parent behaviors.Journal of Nutrition Education and Behavior 01/2004; 36(1):2-8. · 1.55 Impact Factor