From motivation to mediterranean diet intention and behavior: a combined self-determination theory and theory of planned behavior approach.

IF 1.9 3区心理学 Q2 PSYCHOLOGY, MULTIDISCIPLINARY

Psychology & Health Pub Date : 2025-04-26 DOI:10.1080/08870446.2025.2496228

Luigina Canova, Miriam Capasso, Marcella Bianchi, Daniela Caso

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引用次数: 0

Abstract

Objective: The Mediterranean diet (MD) is recognized as one of the healthiest and most sustainable dietary patterns worldwide. This study combines the Theory of Planned Behavior (TPB) and Self-Determination Theory (SDT) alongside past MD adherence behavior to predict MD adherence among young and adult Italians.

Methods and measures: Using a two-wave prospective design, 706 participants (Women = 60.5%, mean age = 31.82) completed measures of past behavior, SDT and TPB variables at baseline (T1) and reported their adherence behavior to MD two weeks later (T2).

Results: Results revealed that both intention and past adherence to MD predicted actual adherence. In turn, affective attitude, descriptive norm, perceived behavioral control (PBC), and autonomous motivation were positively associated with intention. Past adherence further predicted autonomous motivation, affective attitude, and PBC, and indirectly influenced MD adherence at T2 through its effect on these factors and intention. Finally, invariance tests showed no differences between women and men and between student and non-student samples.

Conclusion: Overall, our findings support the integration of TPB and SDT, emphasizing the need for interventions that address both conscious decision-making and established dietary habits, acknowledging the multifaceted nature of dietary behavior change.

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从动机到地中海饮食意图与行为：自我决定理论与计划行为理论相结合的方法。

目的：地中海饮食（MD）被认为是世界上最健康和最可持续的饮食模式之一。本研究结合计划行为理论（TPB）和自我决定理论（SDT）以及过去的医学坚持行为来预测意大利年轻人和成年人的医学坚持。方法和措施：采用两波前瞻性设计，706名参与者（女性= 60.5%，平均年龄= 31.82）在基线（T1）完成了过去行为、SDT和TPB变量的测量，并在两周后（T2）报告了他们对MD的依从性行为。结果：结果显示，MD的意图和过去的坚持可以预测实际的坚持。情感态度、描述规范、感知行为控制和自主动机与意向呈显著正相关。过去的依从性进一步预测自主动机、情感态度和PBC，并通过对这些因素和意向的影响间接影响T2的MD依从性。最后，不变性检验显示男女之间以及学生和非学生样本之间没有差异。结论：总体而言，我们的研究结果支持TPB和SDT的整合，强调需要采取干预措施来解决有意识的决策和既定的饮食习惯，并承认饮食行为改变的多面性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Psychology & Health Multiple-

CiteScore

7.30

自引率

3.00%

发文量

期刊介绍： Psychology & Health promotes the study and application of psychological approaches to health and illness. The contents include work on psychological aspects of physical illness, treatment processes and recovery; psychosocial factors in the aetiology of physical illnesses; health attitudes and behaviour, including prevention; the individual-health care system interface particularly communication and psychologically-based interventions. The journal publishes original research, and accepts not only papers describing rigorous empirical work, including meta-analyses, but also those outlining new psychological approaches and interventions in health-related fields.