基于认知失调的饮食失调预防可改善直觉性饮食：一项针对对身材不满的巴西女性的随机对照试验。
Dissonance-based eating disorder prevention improves intuitive eating: a randomized controlled trial for Brazilian women with body dissatisfaction.
作者信息
Resende Thainá Richelli Oliveira, Almeida Maurício, Dos Santos Alvarenga Marle, Brown Tiffany A, de Carvalho Pedro Henrique Berbert
机构信息
NICTA, Body Image and Eating Disorders Research Group, Federal University of Juiz de Fora, 745, São Paulo Street, City Center, Governador Valadares, Brazil.
School of Public Health, Nutrition in Public Health Post Graduation Program, University of São Paulo, São Paulo, Brazil.
出版信息
Eat Weight Disord. 2022 Apr;27(3):1099-1112. doi: 10.1007/s40519-021-01245-x. Epub 2021 Jun 18.
PURPOSE
Investigate the efficacy of a dissonance-based (DB) intervention (i.e., the Body Project), during which some examples of intuitive eating were provided by peer leaders, in improving intuitive eating and targeting risk and protective factors for eating disorders (ED) among Brazilian women with body dissatisfaction.
METHODS
Participants were randomized to a four-session DB intervention (n = 38) or assessment-only control (AOC) (n = 36), and completed validated measures assessing intuitive eating, body appreciation, self-esteem, body-ideal internalization, body dissatisfaction, negative affect, and disordered eating pre-intervention, post-intervention, and at 4- and 24-week follow-ups.
RESULTS
The DB condition demonstrated significantly greater increases in intuitive eating, body appreciation and self-esteem scores compared to AOC from pre-intervention to post-intervention (between-condition Cohen's d = 0.73-0.98), 4-week (between-condition Cohen's d = 1.25-1.87) and 24-week follow-up (between-condition Cohen's d = 0.82-1.38). Also, the DB condition showed significantly greater decreases in body-ideal internalization, body dissatisfaction and disordered eating scores from pre-intervention to post-intervention (between-condition Cohen's d = 0.76-1.04), 4-week (between-condition Cohen's d = 1.27-1.71) and 24-week follow-up (between-condition Cohen's d = 1.04-1.19). Regarding negative affect, DB condition showed significantly greater reduction only at 24-week follow-up (between-condition Cohen's d = 0.60).
CONCLUSION
Results reinforce the efficacy of DB interventions in reducing ED risk factors for young women and support the preliminary efficacy of these programs in improving intuitive eating, body appreciation, and self-esteem.
LEVEL OF EVIDENCE
Level I, randomized controlled trial. ReBEC (Brazilian Registry of Clinical Trials; available at http://www.ensaiosclinicos.gov.br/ ) number of registration: RBR-2f57cs. Date of registration: June 1, 2020.
目的
研究一种基于认知失调的（DB）干预措施（即“身体计划”）的效果，在此干预过程中，同伴领袖会提供一些直觉性饮食的示例，以改善巴西身体不满意女性的直觉性饮食，并针对饮食失调（ED）的风险和保护因素。
方法
参与者被随机分为四节DB干预课程组（n = 38）或仅评估对照组（AOC）（n = 36），并在干预前、干预后以及4周和24周随访时完成评估直觉性饮食、身体欣赏、自尊、身体理想内化、身体不满意、消极情绪和饮食失调的有效测量。
结果
与AOC相比，从干预前到干预后（组间Cohen's d = 0.73 - 0.98）、4周随访（组间Cohen's d = 1.25 - 1.87）和24周随访（组间Cohen's d = 0.82 - 1.38），DB组在直觉性饮食、身体欣赏和自尊得分上的增加显著更大。此外，从干预前到干预后（组间Cohen's d = 0.76 - 1.04）、4周随访（组间Cohen's d = 1.27 - 1.71）和24周随访（组间Cohen's d = 1.04 - 1.19），DB组在身体理想内化、身体不满意和饮食失调得分上的降低也显著更大。关于消极情绪，DB组仅在24周随访时显示出显著更大的降低（组间Cohen's d = 0.60）。
结论
结果强化了DB干预措施在降低年轻女性饮食失调风险因素方面的效果，并支持这些项目在改善直觉性饮食、身体欣赏和自尊方面的初步效果。
证据水平
I级，随机对照试验。巴西临床试验注册中心（ReBEC；可在http://www.ensaiosclinicos.gov.br/获取）注册号：RBR - 2f57cs。注册日期：2020年6月1日。
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