Coimbra Maria, Ferreira Cláudia
CINEICC - Center for Research in Neuropsychology and Cognitive and Behavioral Intervention, University of Coimbra, Coimbra, Portugal.
Eat Weight Disord. 2021 Aug;26(6):1793-1800. doi: 10.1007/s40519-020-00998-1. Epub 2020 Sep 9.
Orthorexia Nervosa (ON) has been a research focus in recent years. Despite the lack of consensus on its definition and classification as a psychiatric disorder, research has shown that ON is linked to certain behaviours (orthorexic behaviours, e.g.: obsessive thinking and compulsive behavior, guilt and self-punishment, restriction), associated with disordered eating. However, very little is known about this relationship. The aim of this study was to explore the eating-related processes inherent to the relationship between orthorexic behaviours and disordered eating, and understand if it is through the adoption of a more inflexible and less intuitive eating approach, that an interest in healthy eating develops into a pathological one, while controlling the effect of age and BMI. Additionally, this relationship was explored for two different groups: Omnivores and Non-omnivores.
Four hundred fifty-one women (281 Omnivores and 170 Non-omnivores) from the Portuguese population participated in this study, by answering a set of self-report measures.
Non-omnivores presented significant higher levels of orthorexic behaviours and inflexible eating. In both groups, orthorexic behaviours and disordered eating were linked positively to inflexible eating and negatively to intuitive eating. A path model analyses showed that the preferred eating approach mediated the relationship between orthorexic behaviours and disordered eating, explaining 51% of the variance of disordered eating. A multigroup analysis confirmed the model invariance between Omnivores and Non-omnivores.
Our findings contribute to the better understanding of the relationship between orthorexic behaviours and disordered eating and its eating-related processes. Future research regarding the clinical intervention and prevention of ON in women should focus on encouraging a more intuitive eating approach.
IV, cross-sectional study.
近年来，神经性正食症（ON）一直是研究热点。尽管对于将其定义为精神障碍以及分类尚无共识，但研究表明，ON与某些行为（正食行为，例如：强迫性思维和强迫行为、内疚和自我惩罚、饮食限制）有关，这些行为与饮食失调相关。然而，对于这种关系我们知之甚少。本研究旨在探讨正食行为与饮食失调之间关系中固有的饮食相关过程，并了解对健康饮食的兴趣是否通过采用更刻板且缺乏直觉性的饮食方式发展为病态行为，同时控制年龄和体重指数的影响。此外，还针对两组不同人群探讨了这种关系：杂食者和非杂食者。
来自葡萄牙的451名女性（281名杂食者和170名非杂食者）参与了本研究，她们回答了一系列自我报告测量问卷。
非杂食者表现出显著更高水平的正食行为和刻板饮食。在两组中，正食行为和饮食失调与刻板饮食呈正相关，与直觉性饮食呈负相关。路径模型分析表明，偏好的饮食方式介导了正食行为与饮食失调之间的关系，解释了饮食失调变异的51%。多组分析证实了杂食者和非杂食者之间模型的不变性。
我们的研究结果有助于更好地理解正食行为与饮食失调之间的关系及其饮食相关过程。未来关于女性神经性正食症临床干预和预防的研究应侧重于鼓励更具直觉性的饮食方式。
IV，横断面研究。
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